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Senior Flutter Developer builds and maintains cross-platform mobile apps that communicate with hardware peripherals over BLE, working with firmware teams on connected device projects.
If you’re a Senior Flutter Developer who knows what flutter_blue_plus does in production, and you’ve shipped apps that talk to physical devices over BLE, we want to talk. You’d join us on a freelance, time & material basis: you’re paid for the hours you actually work on real client projects. The first three months are about figuring out if we’re a good match. When things work out, and that depends on the work itself, the project pipeline, and business timing, there’s a real path to our core team with a permanent contract and full benefits.
We’ve been designing and co-creating connected devices since 2008. Wearables, smart audio, health-tech hardware for clients like Oura and BOSE, backed by investors like a16z and Founders Fund. We’re 60+ people, fully remote, and AI-native since before LinkedIn influencers discovered the term. Our Flutter work isn’t another generic app: it’s cross-platform code talking to firmware, sensors, and real hardware behavior on both iOS and Android. If your Dart has ever made a physical device do something it couldn’t do before, you already get why we love what we do.
If you like being told exactly what to build every morning, opening Jira, closing Jira, and logging off at 17:01, we’re probably not your people. We look for engineers who ask “why” before “how”, challenge assumptions, and occasionally break things because they were trying something new. We’re AI-native and we expect you to treat AI as a daily multiplier, not a gimmick. What we expect: ownership of what you touch, straight talk when things get complicated, and the kind of curiosity that makes you actually care about the device on the other end of your Bluetooth connection.
Build and maintain Flutter apps that communicate with hardware peripherals over BLE
Make cross-platform code that behaves well on both iOS and Android, not just “compiles on both”
Take part in specifying, planning, and estimating new modules and features
Improve reliability by chasing down the issues QA finds, including the weird ones
Review pull requests and give your teammates feedback that actually helps
Share what you learn: tech talks, internal docs, pair sessions, whatever fits
Work side by side with firmware engineers, designers, QA, and PMs
Use AI tools as part of your daily workflow, not as a party trick
Fully remote. We have a pet-friendly office in Warsaw and a coworking space in Gdansk if walls and coffee machines motivate you, but nobody will ask why you’re not there. Working hours are flexible: most of the team operates between 10:00 and 18:00 CET, and that’s when most meetings happen. Evening calls with US-based clients (up to ~20:00) are part of the rhythm, sometimes a couple of times a week, always planned ahead. You’ll be part of the Mobile chapter for knowledge-sharing, and at the same time on a project squad led by a PM for day-to-day delivery.
90-180 PLN/h net B2B, depending on your experience
Truly flexible hours: you organize your day
Fully remote, with pet-friendly Warsaw office + Gdansk cowork if you want them
Access to our internal knowledge-sharing: tech talks, experiments, side projects
When the first 3 months work out, and that depends on the work, the project pipeline, and business timing, there’s a real path to a permanent contract with a fixed monthly salary, 26 days paid leave, 10 sick days, Saltus medical care, and a training budget
No sugarcoating: during the freelance period there’s no paid leave or medical benefits. Those come with the permanent contract, and we’re transparent about that upfront.
We aim to give you space to ramp up before jumping into live project work, but this is a real company with real deadlines: if the project needs you sooner, we’ll make sure you have the support to hit the ground running. You’ll get paired with a technical buddy and tackle progressively bigger tasks, so both sides can see how the collaboration feels. Feedback comes early and often, no one waits three months to tell you something isn’t working. If it’s great, you’ll know. If something needs adjusting, you’ll hear about it while there’s still time to adjust.
The entire process is in English. All interviews are recorded for internal evaluation purposes.
Application with a few screening questions
HR call, ~45 min, casual
Technical meeting, ~90 min, with the technical team (may include live coding)
Final feedback within a few days
Once we’re in touch, you’ll hear from us fast. We don’t ghost and we don’t drag.
intent is an equal opportunity employer. We care about what you can do, not where you come from. Send us your CV and a few words about why this caught your eye. Bonus points if you share something you’ve built that made you proud.
Strong commercial experience with the Flutter SDK (not “I built a side project once”)
Advanced Dart skills, including state management and async patterns
Working knowledge of iOS and Android: enough to debug when the platform layer is the problem
Hands-on BLE experience, particularly with flutter_blue_plus or similar
English at B2+, written and spoken, because our clients are mostly US-based
Problem-solving over line-counting: we’ll take a creative thinker over a fast typist any day
High coding standards and willingness to align with the team’s patterns
Initiative: you bring new ideas in and you can also walk away from them when the evidence says so
Engagement and team-play, the kind where people actually want you in the room
Native iOS (Swift) or Android (Kotlin) experience for the moments when Flutter isn’t enough
Previous IoT or connected device projects
Method channels and platform-specific plugin work
Scrum or other Agile delivery experience
Willingness to share publicly: hackathons, conferences, internal talks
Genuine curiosity about the devices you build for, not just the code behind them
Senior firmware engineer designs and ships embedded software for connected devices (wearables, audio, health-tech), working with hardware teams and clients to deliver production-quality firmware on microcontrollers like ESP32/STM32.
If you’re a firmware engineer who’s just as comfortable reading a schematic as writing C, and you’ve spent serious time inside ESP32 or STM32 projects, we want to talk. You’d join us on a freelance, time & material basis: you’re paid for the hours you actually work on real client projects. The first three months are about figuring out if we’re a good match. When things work out, and that depends on the work itself, the project pipeline, and business timing, there’s a real path to our core team with a permanent contract and full benefits.
We’ve been designing and co-creating connected devices since 2008. Wearables, smart audio, health-tech hardware for clients like Oura and BOSE, backed by investors like a16z and Founders Fund. We’re 60+ people, fully remote, and AI-native since before LinkedIn influencers discovered the term. Firmware is where most of our products actually live or die: BLE stacks, power budgets, sensor pipelines, OTA. If you like the kind of bug that only shows up at -10°C with a flat battery, you’ll feel at home.
If you like being told exactly what to flash every morning and logging off the second the linker finishes, we’re probably not your people. We look for engineers who ask “why” before “how”, challenge assumptions, and dig into the hardware when the symptoms don’t add up. We’re AI-native and we expect you to treat AI as a daily multiplier, not a gimmick. What we expect: ownership of what you touch, straight talk when something on the board doesn’t behave, and the kind of curiosity that makes you actually care about the device, not just the code that ships to it.
Plan, develop, and ship firmware for connected devices: wearables, audio, health-tech hardware
Gather and analyze requirements from clients, then turn them into something that actually works on real silicon
Consult clients and internal teams on stacks, tools, and trade-offs
Work side by side with mobile, backend, and QA to make sure the device and its companion app actually understand each other over BLE
Test firmware releases and write the documentation that future-you will thank present-you for
Estimate your own work and flag risks before they become blockers
Push for better practices: code reviews, patterns, knowledge-sharing inside and outside the chapter
Use AI tools as part of your daily workflow, not as a party trick
Fully remote. We have a pet-friendly office in Warsaw and a coworking space in Gdansk if walls and coffee machines motivate you, but nobody will ask why you’re not there. Working hours are flexible: most of the team operates between 10:00 and 18:00 CET, and that’s when most meetings happen. Evening calls with US-based clients (up to ~20:00) are part of the rhythm, sometimes a couple of times a week, always planned ahead. You’ll be part of the Firmware & Hardware chapter for knowledge-sharing, and at the same time on a project squad led by a PM for day-to-day delivery.
135-180 PLN/h net B2B, depending on your experience
Truly flexible hours: you organize your day
Fully remote, with pet-friendly Warsaw office + Gdansk cowork if you want them
Access to our internal knowledge-sharing: tech talks, experiments, side projects
When the first 3 months work out, and that depends on the work, the project pipeline, and business timing, there’s a real path to a permanent contract with a fixed monthly salary, 26 days paid leave, 10 sick days, Saltus medical care, and a training budget
No sugarcoating: during the freelance period there’s no paid leave or medical benefits. Those come with the permanent contract, and we’re transparent about that upfront.
We aim to give you space to ramp up before jumping into live project work, but this is a real company with real deadlines: if the project needs you sooner, we’ll make sure you have the support to hit the ground running. You’ll get paired with a technical buddy and tackle progressively bigger tasks, so both sides can see how the collaboration feels. Feedback comes early and often, no one waits three months to tell you something isn’t working. If it’s great, you’ll know. If something needs adjusting, you’ll hear about it while there’s still time to adjust.
The entire process is in English. All interviews are recorded for internal evaluation purposes.
Application with a few screening questions
HR call, ~45 min, casual
Technical meeting, ~90 min, with the firmware team
Final feedback within a few days
Once we’re in touch, you’ll hear from us fast. We don’t ghost and we don’t drag.
intent is an equal opportunity employer. We care about what you can do, not where you come from. Send us your CV and a few words about why this caught your eye. Bonus points if you share something you’ve built that made you proud, ideally something where the firmware had to behave under conditions nobody told you about upfront.
4+ years of professional firmware development
Strong C/C++ for embedded systems (not “I dabbled in microcontrollers in school”)
Hands-on ESP32 experience, including ESP-IDF and ESP-ADF
STM32 experience in production projects
Solid Bluetooth knowledge: BLE, Bluetooth Mesh, and comfort across the stack layers
Toolchain fluency: CMake, GCC, Python-based tooling
Familiarity with IoT protocols like MQTT and WebSockets
A feel for the connected device landscape: IoT, home automation, wearables, automotive
English at B2+, written and spoken, because our clients are mostly US-based
Self-reliance, ownership, and the kind of communication where people don’t have to guess what you meant
Rapid hardware prototyping on Arduino, Raspberry Pi, BeagleBone, Nucleo
Working knowledge of LoRa, Zigbee, Thread, Wi-Fi, and other networking standards
Fleet deployment and management with AWS IoT Core, GCP Cloud IoT, Azure IoT, or similar
Cryptography in embedded contexts
Audio paths: encoding, decoding, mixers
Machine learning on embedded targets
Rust in firmware
FreeRTOS, Zephyr, or other embedded operating systems
Genuine curiosity about the devices you build, not just the bits flying around them
Senior backend engineer owns technical architecture and infrastructure decisions for IoT/connected device projects, designing data pipelines and cloud systems while mentoring team members.
If you’re a backend engineer who doesn’t just build what’s asked, but shapes how it’s built, we want to talk. We’re looking for someone who can own the technical direction of a project end to end: architecture, infrastructure, trade-offs, and the conversations that come with them. You’d join us on a freelance, time & material basis: you’re paid for the hours you actually work on real client projects. Full capacity from the start. The first three months are about figuring out if we’re a good match. When things work out, and that depends on the work itself, the project pipeline, and business timing, there’s a real path to our core team with a permanent contract and full benefits.
We’ve been designing and co-creating connected devices since 2008. Wearables, smart audio, health-tech hardware for clients like Oura and BOSE, backed by investors like a16z and Founders Fund. We’re 60+ people, fully remote, and AI-native since before LinkedIn influencers discovered the term. We use AI every day, in actual work, not just in company decks. Our backend isn’t generic CRUD: it’s the cloud spine of physical devices, the layer where firmware meets data pipelines, and where one bad architectural call shows up in a sensor reading six months later.
If your comfort zone is a well-defined Jira board, clear specs, and someone else making the architectural calls, this isn’t going to work. We’re not hiring a senior developer who executes well. We’re hiring someone who decides what gets built, how it gets built, and why. Someone who walks into a room full of ambiguity and starts creating structure, not waiting for it. If you need a ticket to start moving, if “that’s not in the requirements” is a sentence you use often, or if you’d rather not be the one explaining a technical trade-off to a client, we’re probably not your people. We’re AI-native and we expect you to treat AI tools as a daily multiplier, not a gimmick.
Own and evolve the backend architecture for IoT projects: data ingestion pipelines, API design, infrastructure decisions
Make technical trade-off calls and defend them clearly to the team and to clients
Design and maintain cloud infrastructure on AWS (EKS, Aurora, DynamoDB, Timestream, S3) with production-grade reliability
Lead technical discussions: RFCs, architecture reviews, post-mortems, because you see the need, not because someone asked
Mentor other backend engineers, raise the bar on code quality, and set patterns others can follow
Work side by side with firmware engineers, mobile developers, QA, PMs, and clients
Use AI tools as part of your daily workflow, not as a party trick
Challenge product and technical assumptions when something doesn’t add up, even when it means a harder conversation
Fully remote. We have a pet-friendly office in Warsaw and a coworking space in Gdansk if walls and coffee machines motivate you, but nobody will ask why you’re not there. Working hours are flexible: most of the team operates between 10:00 and 18:00 CET, and that’s when most meetings happen. Evening calls with US-based clients (up to ~20:00) are part of the rhythm, sometimes a couple of times a week, always planned ahead. You’ll be part of the Mobile chapter (which covers backend/cloud too) for knowledge-sharing, and at the same time on a project squad led by a PM for day-to-day delivery.
90-180 PLN/h net B2B, depending on your experience
Truly flexible hours: you organize your day
Fully remote, with pet-friendly Warsaw office + Gdansk cowork if you want them
Access to our internal knowledge-sharing: tech talks, experiments, side projects
When the first 3 months work out, and that depends on the work, the project pipeline, and business timing, there’s a real path to a permanent contract with a fixed monthly salary, 26 days paid leave, 10 sick days, Saltus medical care, and a training budget
No sugarcoating: during the freelance period there’s no paid leave or medical benefits. Those come with the permanent contract, and we’re transparent about that upfront.
We aim to give you space to ramp up before jumping into live project work, but this is a real company with real deadlines: if the project needs you sooner, we’ll make sure you have the support to hit the ground running. You’ll get paired with a technical buddy and tackle progressively bigger tasks, so both sides can see how the collaboration feels. Feedback comes early and often, no one waits three months to tell you something isn’t working. If it’s great, you’ll know. If something needs adjusting, you’ll hear about it while there’s still time to adjust.
The entire process is in English. All interviews are recorded for internal evaluation purposes.
Application with a few screening questions
HR call, ~45 min, casual
Technical meeting, ~90 min, with the technical team
Final feedback within a few days
Once we’re in touch, you’ll hear from us fast. We don’t ghost and we don’t drag.
intent is an equal opportunity employer. We care about what you can do, not where you come from. Send us your CV and a few words about why this caught your eye. Bonus points if you share something you’ve built that made you proud, ideally something where the architecture mattered.
7+ years of backend development, with a meaningful chunk spent leading technical direction, not just writing code
Strong Node.js skills in production systems at scale (not “I followed a tutorial once”)
Deep, hands-on AWS expertise: EKS, Aurora, DynamoDB, Timestream, S3
Kubernetes (EKS), Docker, and Terraform: you’ve built and maintained real infrastructure, not just clicked through the console
Solid understanding of distributed systems, event-driven architectures, and data pipelines
Experience with MQTT or similar IoT messaging protocols
CI/CD pipelines you’ve designed yourself (GitHub Actions, GitLab CI, Jenkins)
English at B2+, written and spoken: you’ll be in rooms with US-based clients and you need to hold your own
The ability to translate business needs into technical decisions and explain those decisions to non-technical stakeholders
Strong opinions, loosely held: you propose direction, you defend it, and you change your mind when the evidence says you should
Previous IoT or connected device projects, especially anything involving telemetry at scale
Golang in production (we’re adding it alongside Node.js)
Observability stack experience: tracing, metrics, structured logging
Security mindset for cloud-connected devices: secrets, mTLS, OTA updates
Genuine curiosity about the devices your backend talks to, not just the cloud side of the story
Senior iOS developer builds and maintains Bluetooth-connected iOS apps for hardware devices, working with firmware teams and maintaining CI/CD pipelines.
If you’re a Senior iOS Developer who knows BLE inside out and likes code that talks to physical things, we want to talk. You’d join us on a freelance, time & material basis: you’re paid for the hours you actually work on real client projects. The first three months are about figuring out if we’re a good match. When things work out, and that depends on the work itself, the project pipeline, and business timing, there’s a real path to our core team with a permanent contract and full benefits.
We’ve been designing and co-creating connected devices since 2008. Wearables, smart audio, health-tech hardware for clients like Oura and BOSE, backed by investors like a16z and Founders Fund. We’re 60+ people, fully remote, and AI-native since before LinkedIn influencers discovered the term. We use AI every day, in actual work, not just in company decks. If your Swift has ever made a physical device do something it couldn’t do before, you already get why we love what we do.
If you like being told exactly what to build every morning, opening Jira, closing Jira, and logging off at 17:01, we’re probably not your people. We look for engineers who ask “why” before “how”, challenge assumptions, and occasionally break things because they were trying something new. We’re AI-native and we expect you to treat AI as a daily multiplier, not a gimmick. What we expect: ownership of what you touch, straight talk when things get complicated, and the kind of curiosity that makes you actually care about the device on the other end of your Bluetooth connection.
Build and maintain iOS apps that communicate with hardware peripherals over BLE
Take part in specifying, planning, and estimating new modules and features
Write and maintain unit tests (XCTest, Quick/Nimble) with a TDD mindset
Keep CI/CD pipelines in shape (GitHub Actions, Bitrise, Travis)
Review pull requests and give your teammates feedback that actually helps
Share what you learn: tech talks, internal docs, pair sessions, whatever fits
Work side by side with firmware engineers, designers, QA, and PMs
Use AI tools as part of your daily workflow, not as a party trick
Fully remote. We have a pet-friendly office in Warsaw and a coworking space in Gdansk if walls and coffee machines motivate you, but nobody will ask why you’re not there. Working hours are flexible: most of the team operates between 10:00 and 18:00 CET, and that’s when most meetings happen. Evening calls with US-based clients (up to ~20:00) are part of the rhythm, sometimes a couple of times a week, always planned ahead. You’ll be part of the Mobile chapter for knowledge-sharing, and at the same time on a project squad led by a PM for day-to-day delivery.
90-180 PLN/h net B2B, depending on your experience
Truly flexible hours: you organize your day
Fully remote, with pet-friendly Warsaw office + Gdansk cowork if you want them
Access to our internal knowledge-sharing: tech talks, experiments, side projects
When the first 3 months work out, and that depends on the work, the project pipeline, and business timing, there’s a real path to a permanent contract with a fixed monthly salary, 26 days paid leave, 10 sick days, Saltus medical care, and a training budget
No sugarcoating: during the freelance period there’s no paid leave or medical benefits. Those come with the permanent contract, and we’re transparent about that upfront.
We aim to give you space to ramp up before jumping into live project work, but this is a real company with real deadlines: if the project needs you sooner, we’ll make sure you have the support to hit the ground running. You’ll get paired with a technical buddy and tackle progressively bigger tasks, so both sides can see how the collaboration feels. Feedback comes early and often, no one waits three months to tell you something isn’t working. If it’s great, you’ll know. If something needs adjusting, you’ll hear about it while there’s still time to adjust.
The entire process is in English. All interviews are recorded for internal evaluation purposes.
Application with a few screening questions
HR call, ~45 min, casual
Technical meeting, ~90 min, with the technical team (may include live coding)
Final feedback within a few days
Once we’re in touch, you’ll hear from us fast. We don’t ghost and we don’t drag.
intent is an equal opportunity employer. We care about what you can do, not where you come from. Send us your CV and a few words about why this caught your eye. Bonus points if you share something you’ve built that made you proud.
3+ years writing production Swift
Strong, hands-on BLE integration experience (not “I read about it once”)
Structured concurrency in Swift: you know it, you use it
CI/CD experience: GitHub Actions, Bitrise, or Travis
Unit testing discipline: XCTest, Quick/Nimble, or similar, with a TDD mindset
English at B2+, written and spoken, because our clients are mostly US-based
Problem-solving over line-counting: we’ll take a creative thinker over a fast typist any day
High coding standards and an eye on what’s new in the iOS world
Initiative, ownership, and the kind of communication where people don’t have to guess what you meant
Experience with other mobile platforms (Android, Flutter, KMM)
Previous IoT or connected device projects
Functional reactive programming (Combine, RxSwift)
Agile/Scrum experience
Genuine curiosity about the things you build, not just the code behind them
Senior Android Developer designs and builds BLE-connected Android apps in Kotlin, owns features end-to-end, and integrates AI tools into daily development workflows.
If you’re a Senior Android Developer who knows BLE inside out and isn’t afraid of code that talks to physical things, we want to talk. You’d join us on a freelance, time & material basis: you’re paid for the hours you actually work on real client projects. The first three months are about figuring out if we’re a good match. When things work out, and that depends on the work itself, the project pipeline, and business timing, there’s a real path to our core team with a permanent contract and full benefits.
We’ve been designing and co-creating connected devices since 2008. Wearables, smart audio, health-tech hardware for clients like Oura and BOSE, backed by investors like a16z and Founders Fund. We’re 60+ people, fully remote, and AI-native since before LinkedIn influencers discovered the term. We use AI every day, in actual work, not just in company decks. If your Kotlin has ever made a physical device do something it couldn’t do before, you already get why we love what we do.
If you like being told exactly what to build every morning, opening Jira, closing Jira, and logging off at 17:01, we’re probably not your people. We look for engineers who ask “why” before “how”, challenge assumptions, and occasionally break things because they were trying something new. We’re AI-native and we expect you to treat AI as a daily multiplier, not a gimmick. What we expect: ownership of what you touch, straight talk when things get complicated, and the kind of curiosity that makes you actually care about the device on the other end of your Bluetooth connection.
Design, build, and maintain Android apps that communicate with hardware peripherals over BLE
Write performant, reusable, and reliable Kotlin code, the kind people don’t dread inheriting
Take part in specifying, planning, and estimating new modules and features
Cover your code with unit tests and keep a TDD mindset where it makes sense
Review pull requests and give your teammates feedback that actually helps
Hunt down bottlenecks and bugs, including the ones that only show up on one OEM
Share what you learn: tech talks, internal docs, pair sessions, whatever fits
Use AI tools as part of your daily workflow, not as a party trick
Fully remote. We have a pet-friendly office in Warsaw and a coworking space in Gdansk if walls and coffee machines motivate you, but nobody will ask why you’re not there. Working hours are flexible: most of the team operates between 10:00 and 18:00 CET, and that’s when most meetings happen. Evening calls with US-based clients (up to ~20:00) are part of the rhythm, sometimes a couple of times a week, always planned ahead. You’ll be part of the Mobile chapter for knowledge-sharing, and at the same time on a project squad led by a PM for day-to-day delivery.
90-180 PLN/h net B2B, depending on your experience
Truly flexible hours: you organize your day
Fully remote, with pet-friendly Warsaw office + Gdansk cowork if you want them
Access to our internal knowledge-sharing: tech talks, experiments, side projects
When the first 3 months work out, and that depends on the work, the project pipeline, and business timing, there’s a real path to a permanent contract with a fixed monthly salary, 26 days paid leave, 10 sick days, Saltus medical care, and a training budget
No sugarcoating: during the freelance period there’s no paid leave or medical benefits. Those come with the permanent contract, and we’re transparent about that upfront.
We aim to give you space to ramp up before jumping into live project work, but this is a real company with real deadlines: if the project needs you sooner, we’ll make sure you have the support to hit the ground running. You’ll get paired with a technical buddy and tackle progressively bigger tasks, so both sides can see how the collaboration feels. Feedback comes early and often, no one waits three months to tell you something isn’t working. If it’s great, you’ll know. If something needs adjusting, you’ll hear about it while there’s still time to adjust.
The entire process is in English. All interviews are recorded for internal evaluation purposes.
Application with a few screening questions
HR call, ~45 min, casual
Technical meeting, ~90 min, with the technical team (may include live coding)
Final feedback within a few days
Once we’re in touch, you’ll hear from us fast. We don’t ghost and we don’t drag.
intent is an equal opportunity employer. We care about what you can do, not where you come from. Send us your CV and a few words about why this caught your eye. Bonus points if you share something you’ve built that made you proud.
3+ years writing production Android in commercial projects
Strong Kotlin (not “I read about coroutines once”)
Hands-on BLE integration experience: real apps talking to real peripherals
Jetpack Compose in production
Comfort with popular Android libraries: Koin, Hilt, and the modern stack
Unit testing discipline (JUnit, Mockito, Robolectric, or similar) with a TDD mindset
English at B2+, written and spoken, because our clients are mostly US-based
Problem-solving over line-counting: we’ll take a creative thinker over a fast typist any day
High coding standards and an eye on what’s new in the Android world
Initiative, ownership, and the kind of communication where people don’t have to guess what you meant
Solid grasp of architecture and design patterns
Previous IoT or connected device projects
Functional reactive programming (Flow, RxJava)
Google Play release experience and Android Auto
Agile or Scrum delivery experience
Some Flutter experience
Genuine curiosity about the things you build, not just the code behind them
Design and implement cloud architectures on Microsoft Azure and M365, lead migration projects, and develop hybrid cloud solutions for enterprise customers.
Our brand Deutsche Telekom IT Solutions Slovakia entered the life of Košice region in 2006 under the name of T-Systems Slovakia and ever since has been inextricably linked with the region when became one of the founding members of Košice IT Valley. We have managed to grow from scratch to the second largest employer in the eastern part of the country with more than 3900 employees. Our goal is to proactively find new ways to improve and continuously transform into the type of company providing innovative information and communication technology services.
Join the team at Operational Services GmbH, within Deutsche Telekom Systems Solutions Slovakia, providing opportunities for German-speaking talents in Slovakia. OS GmbH is one of the leading ICT service providers in the German market and is considered the backbone of digitization in medium-sized companies. With almost 1,000 highly qualified employees, OS develops and operates the most modern IT systems for our customers, ensures long-term system support, and maintains the availability of critical business processes.
If you are looking forward to be a part of English / German speaking, new-technology-looking team player, our team would be the right home base for you.
WHAT WILL YOU DO?
YOU WILL SUCCEED IF YOU:
WHY SHOULD YOU CHOOSE US?
We believe in balance between work and personal life. An attractive and extensive work-life balance portfolio guarantees lasting motivation for employees and thus a better quality of life, promotes physical and mental well-being and contributes to a positive work environment. All this with the aim of providing more freedom in reconciling work, career growth, private life and individual lifestyle. Therefore we offer to our employees over 25 different benefits to improve their personal and professional life in these areas:
For more information about our benefits click to Benefits
Salary
2050 - 3100 eur/ brutto
We are offering base salary depending on seniority level and previous experience of candidate. In addition to base salary we provide variable part and other financial benefits. Base salary will not be lower than 2050 € /brutto.
Additional information
\* Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation.
Senior Data Engineer builds and optimizes batch/streaming pipelines on Databricks, defines data quality standards, and mentors domain teams on data engineering best practices.
🚀 Join Our Data Products and Machine Learning Development Remote Startup! 🚀
Mutt Data is a dynamic startup committed to crafting innovative systems using cutting-edge Big Data and Machine Learning technologies.
We’re looking for a Data Engineer Senior to help take our expertise to the next level. If you consider yourself a data nerd like us, we’d love to connect! 🐶🚀
🔍 Curious about what we’re up to? Check out our case studies and dive into our blog post to learn more about our culture and the exciting projects we’re working on! 🚀
on Databricks (Python/Spark).
product.
belongs to which product/domain).
ownership and good engineering practices.
into platform templates, tooling, and patterns.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
Senior full-stack engineer builds and scales web applications across front-end, back-end, cloud infrastructure, and CI/CD pipelines while mentoring developers and improving platform reliability.
Position Type: Full-Time, Remote
Working Hours: U.S. client business hours (with flexibility for sprint planning, deployments, and on-call coverage)
Our client is seeking a Senior Full Stack Software Engineer to build, scale, and maintain modern web applications and the infrastructure that powers them. This is a highly technical, hands-on role focused on full-stack product development, cloud infrastructure, system reliability, and engineering excellence.
You will work across front-end interfaces, back-end services, cloud infrastructure, CI/CD pipelines, and system monitoring to deliver reliable, scalable, and high-performing applications. Beyond shipping features, this role also involves mentoring developers, contributing to architecture decisions, and improving long-term platform stability and maintainability.
The ideal candidate is a strong end-to-end engineer who thrives in fast-paced product environments and enjoys balancing speed, scalability, reliability, and technical quality.
• Build modern, responsive user interfaces using React, Angular, or Vue
• Translate Figma or Sketch designs into pixel-perfect, production-ready experiences
• Optimize applications for performance, accessibility, and responsiveness
• Build reusable UI components and scalable front-end architecture
• Ensure compatibility across browsers and devices
• Develop and maintain RESTful and GraphQL APIs using Node.js, Python (Django, Flask, FastAPI), or Java
• Build secure authentication and authorization systems with role-based access control
• Design and optimize database schemas and queries across PostgreSQL, MySQL, and MongoDB
• Implement scalable server-side business logic and integrations
• Improve application reliability, scalability, and performance
• Deploy and manage applications on AWS, GCP, or Azure
• Configure and maintain CI/CD pipelines using GitHub Actions, Jenkins, CircleCI, or equivalent tools
• Manage containerized environments using Docker and Kubernetes
• Monitor infrastructure performance, reliability, and deployment health
• Support scalable cloud-native architecture and deployment practices
• Write unit, integration, and end-to-end tests using Jest, Mocha, PyTest, Cypress, or similar frameworks
• Maintain high automated test coverage and engineering quality standards
• Conduct peer code reviews and enforce clean coding practices
• Troubleshoot production issues and performance bottlenecks efficiently
• Monitor systems using Datadog, New Relic, Grafana, Prometheus, or similar tools
• Implement logging, alerting, and observability best practices
• Apply secure coding principles aligned with OWASP Top 10 standards
• Ensure systems comply with GDPR, SOC 2, HIPAA, or other relevant compliance requirements
• Support uptime, resiliency, and disaster recovery initiatives
• Collaborate with product managers and designers to turn requirements into scalable technical solutions
• Lead technical discussions and contribute to architecture planning
• Mentor junior and mid-level engineers through reviews, guidance, and pairing
• Contribute to long-term technical roadmaps and engineering standards
• Participate actively in sprint ceremonies, planning, and technical estimation
• Strong full-stack engineer capable of owning features end-to-end
• Experienced in scaling systems and improving infrastructure reliability
• Hands-on problem solver who thrives in technical environments
• Strong communicator who collaborates effectively across teams
• Balances rapid execution with maintainable architecture and code quality
• Passionate about mentoring and improving engineering culture
• 5+ years of professional full stack software engineering experience
• Strong proficiency in JavaScript/TypeScript with React and Node.js
• Experience with relational and NoSQL databases (Postgres, MySQL, MongoDB)
• Hands-on cloud deployment experience using AWS, GCP, or Azure
• Strong understanding of Git workflows and CI/CD pipelines
• Experience building APIs, scalable applications, and production systems
• Strong debugging, optimization, and troubleshooting skills
• Experience leading architecture reviews and technical design sessions
• Familiarity with Infrastructure-as-Code tools (Terraform, Pulumi, CloudFormation)
• Background building SaaS or high-traffic applications
• Experience with microservices, event-driven systems, or serverless architectures
• Familiarity with Kubernetes orchestration and distributed systems
• Exposure to observability, performance engineering, and cloud cost optimization
A Senior Full Stack Software Engineer’s day revolves around building features, improving infrastructure, and ensuring system reliability. You will:
• Join standups and align with engineering and product teams on sprint priorities
• Build full-stack features across APIs, databases, and front-end interfaces
• Review pull requests and mentor engineers through technical feedback
• Investigate and resolve bugs, outages, and performance bottlenecks
• Collaborate with product managers and designers on implementation strategies and UX flows
• Deploy updates through CI/CD pipelines and monitor infrastructure health
• Contribute to technical planning, architecture decisions, and platform improvements
In essence: you are both a hands-on builder and technical leader, ensuring systems remain scalable, reliable, secure, and continuously improving.
• Features delivered on time and aligned with technical specifications
• Application uptime ≥ 99.9%
• High code quality and maintainable architecture standards
• Automated test coverage maintained at ≥80%
• Reduced technical debt and improved platform reliability
• Fast resolution of production issues and infrastructure incidents
• Positive peer feedback and successful mentoring of junior engineers
• Initial Phone Screen
• Video Interview with Pavago Recruiter
• Technical Assessment (Full Stack Exercise or Architecture Case Study)
• Client Interview(s) with Engineering Team
• Offer & Background Verification
#FullStackEngineer #SoftwareEngineer #ReactJS #NodeJS #CloudEngineering #AWS #TypeScript #BackendDevelopment #FrontendDevelopment #DevOps #Kubernetes #CI_CD #RemoteWork #SaaS #EngineeringJobs
Senior Full Stack Developer designs and builds scalable web applications across front-end and back-end systems, mentors developers, and contributes to architecture decisions.
Position Type: Full-Time, Remote
Working Hours: U.S. client business hours (with flexibility for sprint cycles, deployments, and urgent fixes)
Our client is seeking a Senior Full Stack Developer to design, build, and maintain scalable web applications across both front-end and back-end systems. This is a hands-on engineering role focused on delivering reliable, high-performing products while contributing to architecture decisions, mentoring developers, and improving engineering standards.
The ideal candidate is a strong end-to-end builder who can move seamlessly between user interfaces, APIs, databases, infrastructure, and deployment workflows. You will collaborate closely with product, design, and engineering teams to develop applications that are scalable, maintainable, secure, and user-focused.
This role requires someone who balances fast execution with long-term technical quality and enjoys solving complex technical challenges in fast-paced product environments.
• Build modern, responsive user interfaces using React, Angular, or Vue
• Implement scalable component architectures and reusable UI systems
• Manage application state using Redux, Vuex, Zustand, or Context API
• Ensure accessibility, responsiveness, and cross-browser/device compatibility
• Optimize front-end performance, rendering, and load times
• Design and develop APIs, services, and business logic using Node.js, Python (Django, Flask, FastAPI), or Java/Spring
• Build RESTful and/or GraphQL APIs for web and mobile applications
• Implement authentication, authorization, validation, and security best practices
• Optimize server-side performance and application scalability
• Design and maintain relational and NoSQL databases including PostgreSQL, MySQL, MongoDB, or DynamoDB
• Write optimized queries, migrations, and indexing strategies
• Implement caching and performance optimization using Redis or Memcached
• Ensure data consistency, integrity, and scalability across services
• Write and maintain unit, integration, and end-to-end tests using Jest, Cypress, Mocha, PyTest, or similar tools
• Maintain high test coverage and code quality standards
• Participate in peer code reviews and enforce engineering best practices
• Troubleshoot bugs, production issues, and performance bottlenecks
• Use Git and modern branching workflows for collaboration and release management
• Build and maintain CI/CD pipelines using GitHub Actions, GitLab CI, Jenkins, or equivalent tools
• Deploy and manage applications on AWS, Azure, or GCP
• Support lightweight DevOps practices including Docker, serverless deployments, and monitoring
• Work closely with product managers and designers to translate requirements into technical solutions
• Participate in sprint planning, standups, retrospectives, and backlog refinement
• Provide technical estimates, architecture feedback, and implementation recommendations
• Document systems, APIs, and technical workflows for maintainability
• Mentor junior and mid-level developers through code reviews and technical guidance
• Contribute to architectural planning and long-term technical roadmap discussions
• Help establish engineering standards, workflows, and scalable development practices
• Encourage a collaborative, quality-focused engineering culture
• Strong hands-on engineer comfortable building full-stack systems end-to-end
• Able to balance rapid development with clean, maintainable architecture
• Excellent communicator who collaborates effectively across teams
• Passionate about product quality, scalability, and user experience
• Ownership-driven with strong debugging and problem-solving skills
• Comfortable mentoring others and contributing technical leadership
• 5+ years of professional full stack development experience
• Strong proficiency in JavaScript/TypeScript and modern front-end frameworks (React, Angular, or Vue)
• Experience building APIs and back-end systems using Node.js, Python, or Java
• Strong understanding of relational and NoSQL databases
• Experience with Git workflows, CI/CD pipelines, and cloud deployments
• Familiarity with testing frameworks and software quality best practices
• Strong understanding of web application architecture and scalability principles
• Experience building SaaS, enterprise, or e-commerce applications
• Familiarity with microservices and serverless architectures
• Experience with Docker, Terraform, or infrastructure-as-code practices
• Exposure to AWS, Azure, or GCP production environments
• Experience optimizing applications for performance and scalability
• Background working in startup or high-growth product environments
A Senior Full Stack Developer’s day revolves around shipping features, solving technical challenges, and improving product reliability. You will:
• Participate in standups and review sprint priorities
• Build front-end interfaces and back-end APIs for new product features
• Review pull requests and mentor developers through technical feedback
• Debug production issues and optimize application performance
• Collaborate with product and design teams on feature requirements and UX improvements
• Deploy updates through CI/CD pipelines and monitor production systems
• Document technical changes and contribute to long-term architectural planning
In essence: you are both a hands-on builder and technical leader, ensuring applications remain scalable, reliable, maintainable, and continuously improving.
• Features delivered on time and aligned with product requirements
• Application uptime ≥ 99.9%
• High code quality and maintainable architecture
• Test coverage maintained at ≥80%
• Reduced technical debt and improved system scalability
• Fast resolution of production issues and bugs
• Positive collaboration feedback from engineering, product, and design teams
• Initial Phone Screen
• Video Interview with Pavago Recruiter
• Technical Assessment (Full-Stack Feature Build with API + UI + Tests)
• Client Interview with Engineering/Product Team
• Offer & Background Verification
#FullStackDeveloper #SeniorDeveloper #SoftwareEngineering #React #NodeJS #TypeScript #WebDevelopment #BackendDevelopment #FrontendDevelopment #CloudEngineering #CI_CD #RemoteWork #SaaS #JavaScript #Python #EngineeringJobs
Designs and develops low-latency FPGA hardware and communication stacks for high-performance electronic trading infrastructure.
Tower Research Capital is a leading quantitative trading firm founded in 1998. Tower has built its business on a high-performance platform and independent trading teams. We have a 25+ year track record of innovation and a reputation for discovering unique market opportunities.
Tower is home to some of the world’s best systematic trading and engineering talent. We empower portfolio managers to build their teams and strategies independently while providing the economies of scale that come from a large, global organization.
Engineers thrive at Tower while developing electronic trading infrastructure at a world class level. Our engineers solve challenging problems in the realms of low-latency programming, FPGA technology, hardware acceleration and machine learning. Our ongoing investment in top engineering talent and technology ensures our platform remains unmatched in terms of functionality, scalability and performance.
At Tower, every employee plays a role in our success. Our Business Support teams are essential to building and maintaining the platform that powers everything we do — combining market access, data, compute, and research infrastructure with risk management, compliance, and a full suite of business services. Our Business Support teams enable our trading and engineering teams to perform at their best.
At Tower, employees will find a stimulating, results-oriented environment where highly intelligent and motivated colleagues inspire each other to reach their greatest potential.
Tower’s headquarters are in the historic Equitable Building, right in the heart of NYC’s Financial District and our impact is global, with over a dozen offices around the world.
At Tower, we believe work should be both challenging and enjoyable. That is why we foster a culture where smart, driven people thrive – without the egos. Our open concept workplace, casual dress code, and well-stocked kitchens reflect the value we place on a friendly, collaborative environment where everyone is respected, and great ideas win.
Our benefits include:
At Tower, you’ll find a collaborative and welcoming culture, a diverse team and a workplace that values both performance and enjoyment. No unnecessary hierarchy. No ego. Just great people doing great work – together.
Tower Research Capital is an equal opportunity employer.
Senior firmware engineer designs and develops embedded software for connected devices like wearables and health-tech hardware, working with ESP32/STM32 platforms and managing full lifecycle from requirements to testing.
If you’re a firmware engineer who’s just as comfortable reading a schematic as writing C, and you’ve spent serious time inside ESP32 or STM32 projects, we want to talk. You’d join us on a freelance, time & material basis: you’re paid for the hours you actually work on real client projects. The first three months are about figuring out if we’re a good match. When things work out, and that depends on the work itself, the project pipeline, and business timing, there’s a real path to our core team with a permanent contract and full benefits.
We’ve been designing and co-creating connected devices since 2008. Wearables, smart audio, health-tech hardware for clients like Oura and BOSE, backed by investors like a16z and Founders Fund. We’re 60+ people, fully remote, and AI-native since before LinkedIn influencers discovered the term. Firmware is where most of our products actually live or die: BLE stacks, power budgets, sensor pipelines, OTA. If you like the kind of bug that only shows up at -10°C with a flat battery, you’ll feel at home.
If you like being told exactly what to flash every morning and logging off the second the linker finishes, we’re probably not your people. We look for engineers who ask “why” before “how”, challenge assumptions, and dig into the hardware when the symptoms don’t add up. We’re AI-native and we expect you to treat AI as a daily multiplier, not a gimmick. What we expect: ownership of what you touch, straight talk when something on the board doesn’t behave, and the kind of curiosity that makes you actually care about the device, not just the code that ships to it.
Plan, develop, and ship firmware for connected devices: wearables, audio, health-tech hardware
Gather and analyze requirements from clients, then turn them into something that actually works on real silicon
Consult clients and internal teams on stacks, tools, and trade-offs
Work side by side with mobile, backend, and QA to make sure the device and its companion app actually understand each other over BLE
Test firmware releases and write the documentation that future-you will thank present-you for
Estimate your own work and flag risks before they become blockers
Push for better practices: code reviews, patterns, knowledge-sharing inside and outside the chapter
Use AI tools as part of your daily workflow, not as a party trick
Fully remote. We have a pet-friendly office in Warsaw and a coworking space in Gdansk if walls and coffee machines motivate you, but nobody will ask why you’re not there. Working hours are flexible: most of the team operates between 10:00 and 18:00 CET, and that’s when most meetings happen. Evening calls with US-based clients (up to ~20:00) are part of the rhythm, sometimes a couple of times a week, always planned ahead. You’ll be part of the Firmware & Hardware chapter for knowledge-sharing, and at the same time on a project squad led by a PM for day-to-day delivery.
135-180 PLN/h net B2B, depending on your experience
Truly flexible hours: you organize your day
Fully remote, with pet-friendly Warsaw office + Gdansk cowork if you want them
Access to our internal knowledge-sharing: tech talks, experiments, side projects
When the first 3 months work out, and that depends on the work, the project pipeline, and business timing, there’s a real path to a permanent contract with a fixed monthly salary, 26 days paid leave, 10 sick days, Saltus medical care, and a training budget
No sugarcoating: during the freelance period there’s no paid leave or medical benefits. Those come with the permanent contract, and we’re transparent about that upfront.
We aim to give you space to ramp up before jumping into live project work, but this is a real company with real deadlines: if the project needs you sooner, we’ll make sure you have the support to hit the ground running. You’ll get paired with a technical buddy and tackle progressively bigger tasks, so both sides can see how the collaboration feels. Feedback comes early and often, no one waits three months to tell you something isn’t working. If it’s great, you’ll know. If something needs adjusting, you’ll hear about it while there’s still time to adjust.
The entire process is in English. All interviews are recorded for internal evaluation purposes.
Application with a few screening questions
HR call, ~45 min, casual
Technical meeting, ~90 min, with the firmware team
Final feedback within a few days
Once we’re in touch, you’ll hear from us fast. We don’t ghost and we don’t drag.
intent is an equal opportunity employer. We care about what you can do, not where you come from. Send us your CV and a few words about why this caught your eye. Bonus points if you share something you’ve built that made you proud, ideally something where the firmware had to behave under conditions nobody told you about upfront.
4+ years of professional firmware development
Strong C/C++ for embedded systems (not “I dabbled in microcontrollers in school”)
Hands-on ESP32 experience, including ESP-IDF and ESP-ADF
STM32 experience in production projects
Solid Bluetooth knowledge: BLE, Bluetooth Mesh, and comfort across the stack layers
Toolchain fluency: CMake, GCC, Python-based tooling
Familiarity with IoT protocols like MQTT and WebSockets
A feel for the connected device landscape: IoT, home automation, wearables, automotive
English at B2+, written and spoken, because our clients are mostly US-based
Self-reliance, ownership, and the kind of communication where people don’t have to guess what you meant
Rapid hardware prototyping on Arduino, Raspberry Pi, BeagleBone, Nucleo
Working knowledge of LoRa, Zigbee, Thread, Wi-Fi, and other networking standards
Fleet deployment and management with AWS IoT Core, GCP Cloud IoT, Azure IoT, or similar
Cryptography in embedded contexts
Audio paths: encoding, decoding, mixers
Machine learning on embedded targets
Rust in firmware
FreeRTOS, Zephyr, or other embedded operating systems
Genuine curiosity about the devices you build, not just the bits flying around them
Senior backend engineer owns IoT cloud architecture, infrastructure decisions, and technical strategy across data pipelines and AWS infrastructure.
If you’re a backend engineer who doesn’t just build what’s asked, but shapes how it’s built, we want to talk. We’re looking for someone who can own the technical direction of a project end to end: architecture, infrastructure, trade-offs, and the conversations that come with them. You’d join us on a freelance, time & material basis: you’re paid for the hours you actually work on real client projects. Full capacity from the start. The first three months are about figuring out if we’re a good match. When things work out, and that depends on the work itself, the project pipeline, and business timing, there’s a real path to our core team with a permanent contract and full benefits.
We’ve been designing and co-creating connected devices since 2008. Wearables, smart audio, health-tech hardware for clients like Oura and BOSE, backed by investors like a16z and Founders Fund. We’re 60+ people, fully remote, and AI-native since before LinkedIn influencers discovered the term. We use AI every day, in actual work, not just in company decks. Our backend isn’t generic CRUD: it’s the cloud spine of physical devices, the layer where firmware meets data pipelines, and where one bad architectural call shows up in a sensor reading six months later.
If your comfort zone is a well-defined Jira board, clear specs, and someone else making the architectural calls, this isn’t going to work. We’re not hiring a senior developer who executes well. We’re hiring someone who decides what gets built, how it gets built, and why. Someone who walks into a room full of ambiguity and starts creating structure, not waiting for it. If you need a ticket to start moving, if “that’s not in the requirements” is a sentence you use often, or if you’d rather not be the one explaining a technical trade-off to a client, we’re probably not your people. We’re AI-native and we expect you to treat AI tools as a daily multiplier, not a gimmick.
Own and evolve the backend architecture for IoT projects: data ingestion pipelines, API design, infrastructure decisions
Make technical trade-off calls and defend them clearly to the team and to clients
Design and maintain cloud infrastructure on AWS (EKS, Aurora, DynamoDB, Timestream, S3) with production-grade reliability
Lead technical discussions: RFCs, architecture reviews, post-mortems, because you see the need, not because someone asked
Mentor other backend engineers, raise the bar on code quality, and set patterns others can follow
Work side by side with firmware engineers, mobile developers, QA, PMs, and clients
Use AI tools as part of your daily workflow, not as a party trick
Challenge product and technical assumptions when something doesn’t add up, even when it means a harder conversation
Fully remote. We have a pet-friendly office in Warsaw and a coworking space in Gdansk if walls and coffee machines motivate you, but nobody will ask why you’re not there. Working hours are flexible: most of the team operates between 10:00 and 18:00 CET, and that’s when most meetings happen. Evening calls with US-based clients (up to ~20:00) are part of the rhythm, sometimes a couple of times a week, always planned ahead. You’ll be part of the Mobile chapter (which covers backend/cloud too) for knowledge-sharing, and at the same time on a project squad led by a PM for day-to-day delivery.
90-180 PLN/h net B2B, depending on your experience
Truly flexible hours: you organize your day
Fully remote, with pet-friendly Warsaw office + Gdansk cowork if you want them
Access to our internal knowledge-sharing: tech talks, experiments, side projects
When the first 3 months work out, and that depends on the work, the project pipeline, and business timing, there’s a real path to a permanent contract with a fixed monthly salary, 26 days paid leave, 10 sick days, Saltus medical care, and a training budget
No sugarcoating: during the freelance period there’s no paid leave or medical benefits. Those come with the permanent contract, and we’re transparent about that upfront.
We aim to give you space to ramp up before jumping into live project work, but this is a real company with real deadlines: if the project needs you sooner, we’ll make sure you have the support to hit the ground running. You’ll get paired with a technical buddy and tackle progressively bigger tasks, so both sides can see how the collaboration feels. Feedback comes early and often, no one waits three months to tell you something isn’t working. If it’s great, you’ll know. If something needs adjusting, you’ll hear about it while there’s still time to adjust.
The entire process is in English. All interviews are recorded for internal evaluation purposes.
Application with a few screening questions
HR call, ~45 min, casual
Technical meeting, ~90 min, with the technical team
Final feedback within a few days
Once we’re in touch, you’ll hear from us fast. We don’t ghost and we don’t drag.
intent is an equal opportunity employer. We care about what you can do, not where you come from. Send us your CV and a few words about why this caught your eye. Bonus points if you share something you’ve built that made you proud, ideally something where the architecture mattered.
7+ years of backend development, with a meaningful chunk spent leading technical direction, not just writing code
Strong Node.js skills in production systems at scale (not “I followed a tutorial once”)
Deep, hands-on AWS expertise: EKS, Aurora, DynamoDB, Timestream, S3
Kubernetes (EKS), Docker, and Terraform: you’ve built and maintained real infrastructure, not just clicked through the console
Solid understanding of distributed systems, event-driven architectures, and data pipelines
Experience with MQTT or similar IoT messaging protocols
CI/CD pipelines you’ve designed yourself (GitHub Actions, GitLab CI, Jenkins)
English at B2+, written and spoken: you’ll be in rooms with US-based clients and you need to hold your own
The ability to translate business needs into technical decisions and explain those decisions to non-technical stakeholders
Strong opinions, loosely held: you propose direction, you defend it, and you change your mind when the evidence says you should
Previous IoT or connected device projects, especially anything involving telemetry at scale
Golang in production (we’re adding it alongside Node.js)
Observability stack experience: tracing, metrics, structured logging
Security mindset for cloud-connected devices: secrets, mTLS, OTA updates
Genuine curiosity about the devices your backend talks to, not just the cloud side of the story
Senior iOS Developer builds and maintains BLE-connected iOS applications, collaborates with firmware and design teams, and integrates AI tools into daily development workflows.
If you’re a Senior iOS Developer who knows BLE inside out and likes code that talks to physical things, we want to talk. You’d join us on a freelance, time & material basis: you’re paid for the hours you actually work on real client projects. The first three months are about figuring out if we’re a good match. When things work out, and that depends on the work itself, the project pipeline, and business timing, there’s a real path to our core team with a permanent contract and full benefits.
We’ve been designing and co-creating connected devices since 2008. Wearables, smart audio, health-tech hardware for clients like Oura and BOSE, backed by investors like a16z and Founders Fund. We’re 60+ people, fully remote, and AI-native since before LinkedIn influencers discovered the term. We use AI every day, in actual work, not just in company decks. If your Swift has ever made a physical device do something it couldn’t do before, you already get why we love what we do.
If you like being told exactly what to build every morning, opening Jira, closing Jira, and logging off at 17:01, we’re probably not your people. We look for engineers who ask “why” before “how”, challenge assumptions, and occasionally break things because they were trying something new. We’re AI-native and we expect you to treat AI as a daily multiplier, not a gimmick. What we expect: ownership of what you touch, straight talk when things get complicated, and the kind of curiosity that makes you actually care about the device on the other end of your Bluetooth connection.
Build and maintain iOS apps that communicate with hardware peripherals over BLE
Take part in specifying, planning, and estimating new modules and features
Write and maintain unit tests (XCTest, Quick/Nimble) with a TDD mindset
Keep CI/CD pipelines in shape (GitHub Actions, Bitrise, Travis)
Review pull requests and give your teammates feedback that actually helps
Share what you learn: tech talks, internal docs, pair sessions, whatever fits
Work side by side with firmware engineers, designers, QA, and PMs
Use AI tools as part of your daily workflow, not as a party trick
Fully remote. We have a pet-friendly office in Warsaw and a coworking space in Gdansk if walls and coffee machines motivate you, but nobody will ask why you’re not there. Working hours are flexible: most of the team operates between 10:00 and 18:00 CET, and that’s when most meetings happen. Evening calls with US-based clients (up to ~20:00) are part of the rhythm, sometimes a couple of times a week, always planned ahead. You’ll be part of the Mobile chapter for knowledge-sharing, and at the same time on a project squad led by a PM for day-to-day delivery.
90-180 PLN/h net B2B, depending on your experience
Truly flexible hours: you organize your day
Fully remote, with pet-friendly Warsaw office + Gdansk cowork if you want them
Access to our internal knowledge-sharing: tech talks, experiments, side projects
When the first 3 months work out, and that depends on the work, the project pipeline, and business timing, there’s a real path to a permanent contract with a fixed monthly salary, 26 days paid leave, 10 sick days, Saltus medical care, and a training budget
No sugarcoating: during the freelance period there’s no paid leave or medical benefits. Those come with the permanent contract, and we’re transparent about that upfront.
We aim to give you space to ramp up before jumping into live project work, but this is a real company with real deadlines: if the project needs you sooner, we’ll make sure you have the support to hit the ground running. You’ll get paired with a technical buddy and tackle progressively bigger tasks, so both sides can see how the collaboration feels. Feedback comes early and often, no one waits three months to tell you something isn’t working. If it’s great, you’ll know. If something needs adjusting, you’ll hear about it while there’s still time to adjust.
The entire process is in English. All interviews are recorded for internal evaluation purposes.
Application with a few screening questions
HR call, ~45 min, casual
Technical meeting, ~90 min, with the technical team (may include live coding)
Final feedback within a few days
Once we’re in touch, you’ll hear from us fast. We don’t ghost and we don’t drag.
intent is an equal opportunity employer. We care about what you can do, not where you come from. Send us your CV and a few words about why this caught your eye. Bonus points if you share something you’ve built that made you proud.
3+ years writing production Swift
Strong, hands-on BLE integration experience (not “I read about it once”)
Structured concurrency in Swift: you know it, you use it
CI/CD experience: GitHub Actions, Bitrise, or Travis
Unit testing discipline: XCTest, Quick/Nimble, or similar, with a TDD mindset
English at B2+, written and spoken, because our clients are mostly US-based
Problem-solving over line-counting: we’ll take a creative thinker over a fast typist any day
High coding standards and an eye on what’s new in the iOS world
Initiative, ownership, and the kind of communication where people don’t have to guess what you meant
Experience with other mobile platforms (Android, Flutter, KMM)
Previous IoT or connected device projects
Functional reactive programming (Combine, RxSwift)
Agile/Scrum experience
Genuine curiosity about the things you build, not just the code behind them
Senior Android Developer designs and builds BLE-connected Android apps in Kotlin, maintains hardware communication code, writes tests, reviews PRs, and uses AI tools daily.
If you’re a Senior Android Developer who knows BLE inside out and isn’t afraid of code that talks to physical things, we want to talk. You’d join us on a freelance, time & material basis: you’re paid for the hours you actually work on real client projects. The first three months are about figuring out if we’re a good match. When things work out, and that depends on the work itself, the project pipeline, and business timing, there’s a real path to our core team with a permanent contract and full benefits.
We’ve been designing and co-creating connected devices since 2008. Wearables, smart audio, health-tech hardware for clients like Oura and BOSE, backed by investors like a16z and Founders Fund. We’re 60+ people, fully remote, and AI-native since before LinkedIn influencers discovered the term. We use AI every day, in actual work, not just in company decks. If your Kotlin has ever made a physical device do something it couldn’t do before, you already get why we love what we do.
If you like being told exactly what to build every morning, opening Jira, closing Jira, and logging off at 17:01, we’re probably not your people. We look for engineers who ask “why” before “how”, challenge assumptions, and occasionally break things because they were trying something new. We’re AI-native and we expect you to treat AI as a daily multiplier, not a gimmick. What we expect: ownership of what you touch, straight talk when things get complicated, and the kind of curiosity that makes you actually care about the device on the other end of your Bluetooth connection.
Design, build, and maintain Android apps that communicate with hardware peripherals over BLE
Write performant, reusable, and reliable Kotlin code, the kind people don’t dread inheriting
Take part in specifying, planning, and estimating new modules and features
Cover your code with unit tests and keep a TDD mindset where it makes sense
Review pull requests and give your teammates feedback that actually helps
Hunt down bottlenecks and bugs, including the ones that only show up on one OEM
Share what you learn: tech talks, internal docs, pair sessions, whatever fits
Use AI tools as part of your daily workflow, not as a party trick
Fully remote. We have a pet-friendly office in Warsaw and a coworking space in Gdansk if walls and coffee machines motivate you, but nobody will ask why you’re not there. Working hours are flexible: most of the team operates between 10:00 and 18:00 CET, and that’s when most meetings happen. Evening calls with US-based clients (up to ~20:00) are part of the rhythm, sometimes a couple of times a week, always planned ahead. You’ll be part of the Mobile chapter for knowledge-sharing, and at the same time on a project squad led by a PM for day-to-day delivery.
90-180 PLN/h net B2B, depending on your experience
Truly flexible hours: you organize your day
Fully remote, with pet-friendly Warsaw office + Gdansk cowork if you want them
Access to our internal knowledge-sharing: tech talks, experiments, side projects
When the first 3 months work out, and that depends on the work, the project pipeline, and business timing, there’s a real path to a permanent contract with a fixed monthly salary, 26 days paid leave, 10 sick days, Saltus medical care, and a training budget
No sugarcoating: during the freelance period there’s no paid leave or medical benefits. Those come with the permanent contract, and we’re transparent about that upfront.
We aim to give you space to ramp up before jumping into live project work, but this is a real company with real deadlines: if the project needs you sooner, we’ll make sure you have the support to hit the ground running. You’ll get paired with a technical buddy and tackle progressively bigger tasks, so both sides can see how the collaboration feels. Feedback comes early and often, no one waits three months to tell you something isn’t working. If it’s great, you’ll know. If something needs adjusting, you’ll hear about it while there’s still time to adjust.
The entire process is in English. All interviews are recorded for internal evaluation purposes.
Application with a few screening questions
HR call, ~45 min, casual
Technical meeting, ~90 min, with the technical team (may include live coding)
Final feedback within a few days
Once we’re in touch, you’ll hear from us fast. We don’t ghost and we don’t drag.
intent is an equal opportunity employer. We care about what you can do, not where you come from. Send us your CV and a few words about why this caught your eye. Bonus points if you share something you’ve built that made you proud.
3+ years writing production Android in commercial projects
Strong Kotlin (not “I read about coroutines once”)
Hands-on BLE integration experience: real apps talking to real peripherals
Jetpack Compose in production
Comfort with popular Android libraries: Koin, Hilt, and the modern stack
Unit testing discipline (JUnit, Mockito, Robolectric, or similar) with a TDD mindset
English at B2+, written and spoken, because our clients are mostly US-based
Problem-solving over line-counting: we’ll take a creative thinker over a fast typist any day
High coding standards and an eye on what’s new in the Android world
Initiative, ownership, and the kind of communication where people don’t have to guess what you meant
Solid grasp of architecture and design patterns
Previous IoT or connected device projects
Functional reactive programming (Flow, RxJava)
Google Play release experience and Android Auto
Agile or Scrum delivery experience
Some Flutter experience
Genuine curiosity about the things you build, not just the code behind them
Senior QA engineer designs and develops automated test frameworks, executes test plans, and builds CI/CD infrastructure to ensure software quality across applications.
We are a team to design, develop, maintain, and improve software for various ventures projects, i.e., projects that are adjacent to our core businesses and are bootstrapped fast with a lean team. You will be actively involved in the design of various components behind scalable applications, from frontend UI to backend infrastructure.
Life @ Crypto.com
Empowered to think big. Try new opportunities while working with a talented, ambitious and supportive team.
Transformational and proactive working environment. Empower employees to find thoughtful and innovative solutions.
Growth from within. We help to develop new skill-sets that would impact the shaping of your personal and professional growth.
Work Culture. Our colleagues are some of the best in the industry; we are all here to help and support one another.
One cohesive team. Engage stakeholders to achieve our ultimate goal - Cryptocurrency in every wallet.
Work Flexibility Adoption. Flexi-work hour and hybrid or remote set-up
Aspire career alternatives through us - our internal mobility program offers employees a new scope.
Work Perks: crypto.com visa card provided upon joining
Are you ready to kickstart your future with us?
Benefits
Competitive salary
Attractive annual leave entitlement including: birthday, work anniversary
Work Flexibility Adoption. Flexi-work hour and hybrid or remote set-up
Aspire career alternatives through us. Our internal mobility program can offer employees a diverse scope.
Work Perks: crypto.com visa card provided upon joining
Our Crypto.com benefits packages vary depending on region requirements, you can learn more from our talent acquisition team.
About Crypto.com:
Founded in 2016, Crypto.com serves more than 150 million customers and is the world’s fastest growing global cryptocurrency platform. Our vision is simple: Cryptocurrency in Every Wallet™. Built on a foundation of security, privacy, and compliance, Crypto.com is committed to accelerating the adoption of cryptocurrency through innovation and empowering the next generation of builders, creators, and entrepreneurs to develop a fairer and more equitable digital ecosystem.
Learn more at https://crypto.com.
Crypto.com is an equal opportunities employer and we are committed to creating an environment where opportunities are presented to everyone in a fair and transparent way. Crypto.com values diversity and inclusion, seeking candidates with a variety of backgrounds, perspectives, and skills that complement and strengthen our team.
Personal data provided by applicants will be used for recruitment purposes only.
Please note that only shortlisted candidates will be contacted.
We may use artificial intelligence tools to analyze the content of your Resume/CV against the specific requirements for the position. The purpose is to support our recruitment team in reviewing applications more effectively. These tools assist our recruitment team in their evaluation of your application by providing recommendations, but they do not replace human judgment. Final hiring decisions are ultimately made by humans who consider the insights generated by the tools along with other relevant information. If you would like more details about how your personal information is processed, please contact us.
Optimizes observability infrastructure using New Relic and PagerDuty, manages production monitoring, incident response, and DevOps reliability improvements.
We are a Digital Product Engineering company that is scaling in a big way! We build products, services, and experiences that inspire, excite, and delight. We work on a scale across all devices and digital mediums, and our people exist everywhere in the world (18000 plus experts across 39 countries, to be exact). Our work culture is dynamic and non-hierarchical. We are looking for great new colleagues. That is where you come in!
Must have Skills : DevOps - AWS (Strong), New Relic, PagerDuty
Disclaimer: Nagarro is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will be afforded equal employment opportunities without discrimination based on race, creed, color, national origin, sex, age, disability, or marital status.
Staff engineer designs and develops AI-driven Salesforce voice solutions, integrating Agentforce Voice with CRM systems while mentoring junior developers.
We are a Digital Product Engineering company that is scaling in a big way! We build products, services, and experiences that inspire, excite, and delight. We work on a scale across all devices and digital mediums, and our people exist everywhere in the world (18000 plus experts across 39 countries, to be exact). Our work culture is dynamic and non-hierarchical. We are looking for great new colleagues. That is where you come in!
Must have Skills : Apex, Lightning (LWC), Service cloud, Salesforce Voice
Disclaimer: Nagarro is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will be afforded equal employment opportunities without discrimination based on race, creed, color, national origin, sex, age, disability, or marital status.
Design, implement, and manage cloud infrastructure on AWS/Azure using Terraform, CI/CD pipelines, and Kubernetes while leading infrastructure projects end-to-end.
Headquarters: Remote job, ZH, Switzerland
S-PRO, a top-tier Digital Innovation and Software Engineering company. We specialise in providing cutting-edge services for fast-growing businesses and enterprises, with a strong focus on Finance, Renewable Energy and Healthcare domains and expertise in AI, Blockchain and Data Science. Our team of over 200 dedicated professionals works tirelessly across our global offices to develop innovative digital solutions that drive sustainable business value and increase our client’s competitiveness in a dynamic digital landscape.
We are seeking a Senior DevOps Engineer with strong expertise in cloud infrastructure, automation, and infrastructure-as-code. This role requires independent ownership of tasks from design to deployment, with an emphasis on architecture, planning, and execution.
Responsibilities
Design and implement infrastructure solutions on AWS and Azure
Develop and manage infrastructure using Terraform
Create and maintain CI/CD pipelines (GitLab CI, Jenkins)
Build scalable and reliable infrastructure using containerization (Docker, Kubernetes)
Perform scripting and automation (Bash, Python, or similar)
Conduct infrastructure assessments and propose improvements
Independently lead and deliver infrastructure projects end-to-end
Perform incident investigations and implement sustainable solutions
Preferred Qualifications
Deep knowledge of Terraform, AWS services (Azure is a big plus), and GitLab CI
Experience working with microservices and container orchestration (Kubernetes)
Strong understanding of system design and cloud architecture
Proven ability to manage tasks autonomously and operate in low-support environments
Familiarity with monitoring, logging, and alerting systems
Benefits and perks:
Flexible schedule.
Remote work model.
Medical insurance.
Paid vacations.
Paid Sick-leaves.
Paid State holidays.
Your application has been successfully submitted!
Other jobsTo apply: https://weworkremotely.com/remote-jobs/s-pro-senior-lead-devops-engineer
Staff software engineer who owns end-to-end technical implementation of product initiatives, leverages AI coding agents, and partners with product and design teams to ship marketplace features.
Headquarters: Florianópolis, State of Santa Catarina, Brazil
URL: http://lawnstarter.com
About LawnStarter
LawnStarter is the nation's leading on-demand marketplace for lawn care and outdoor services, with over $100M in annual bookings. We're expanding beyond lawn care to become the one-stop shop for all home services — operating across three brands (LawnStarter, Lawn Love, Home Gnome) on a single shared platform.
About Engineering at LawnStarter
We build in small, focused initiative teams: a Product Engineer working alongside a PM and a designer, supported by an Engineering Manager who helps you grow. You'll also work shoulder-to-shoulder with engineering peers across initiatives in a shared codebase. The whole team owns whether the work moves its metric.
AI coding agents are a force multiplier here — they give a small, senior team the leverage to ship more, faster, and at a higher bar for quality. We hire engineers who are wired for ownership and energized by shipping to a real marketplace with customers and pros on both sides.
The Role
You're the engineering anchor of an initiative — working as part of a tight team with your PM and designer, and alongside engineering peers on adjacent initiatives. You have a hand in the full lifecycle: shaping the problem, deciding the technical approach, directing AI agents to implement much of the code, shipping to production, and — with your team — owning the outcome.
You're measured by impact, not by lines of code merged. When an agent can ship something safely, your job is to make sure it's done right and the metric moves. When the work calls for careful, hand-written code in a sensitive area, you write it yourself.
What makes this role exciting:
Leading AI agents at a staff-level quality bar Most of the code on your initiative will be authored by AI agents. The craft is making them ship as if a senior engineer wrote it: prompts that encode our conventions, evals that catch issues before merge, tests that exercise the edges, observability that catches a regression before a customer does. How do you build a workflow that lets a small team ship far more than its size would suggest?
Owning decisions with high autonomy You have real latitude to make and document technical calls quickly — with architect review on the big architectural ones and peers to pressure-test your thinking. How do you move fast, keep your team aligned, and stay accountable to the outcome?
Shipping outcomes, not features Each initiative is measured by a metric — a conversion rate, a retention curve, a pro-funnel KPI, a unit-economics shift. You're accountable for the number alongside your team. How do you scope to actually move it, decide what *not* to build, and have the discipline to follow up 2-4 weeks after launch?
Requirements
You don't need every box checked. You need deep skill in at least one of our stacks plus credible production experience with AI coding agents.
Benefits
To apply: https://weworkremotely.com/remote-jobs/lawnstarter-staff-software-engineer-product-1
Staff software engineer leads full-stack initiative ownership from problem definition through production launch, directing AI agents and writing critical code in a product-focused team.
Headquarters: Belo Horizonte, State of Minas Gerais, Brazil
URL: http://lawnstarter.com
About LawnStarter
LawnStarter is the nation's leading on-demand marketplace for lawn care and outdoor services, with over $100M in annual bookings. We're expanding beyond lawn care to become the one-stop shop for all home services — operating across three brands (LawnStarter, Lawn Love, Home Gnome) on a single shared platform.
About Engineering at LawnStarter
We build in small, focused initiative teams: a Product Engineer working alongside a PM and a designer, supported by an Engineering Manager who helps you grow. You'll also work shoulder-to-shoulder with engineering peers across initiatives in a shared codebase. The whole team owns whether the work moves its metric.
AI coding agents are a force multiplier here — they give a small, senior team the leverage to ship more, faster, and at a higher bar for quality. We hire engineers who are wired for ownership and energized by shipping to a real marketplace with customers and pros on both sides.
The Role
You're the engineering anchor of an initiative — working as part of a tight team with your PM and designer, and alongside engineering peers on adjacent initiatives. You have a hand in the full lifecycle: shaping the problem, deciding the technical approach, directing AI agents to implement much of the code, shipping to production, and — with your team — owning the outcome.
You're measured by impact, not by lines of code merged. When an agent can ship something safely, your job is to make sure it's done right and the metric moves. When the work calls for careful, hand-written code in a sensitive area, you write it yourself.
What makes this role exciting:
Leading AI agents at a staff-level quality bar Most of the code on your initiative will be authored by AI agents. The craft is making them ship as if a senior engineer wrote it: prompts that encode our conventions, evals that catch issues before merge, tests that exercise the edges, observability that catches a regression before a customer does. How do you build a workflow that lets a small team ship far more than its size would suggest?
Owning decisions with high autonomy You have real latitude to make and document technical calls quickly — with architect review on the big architectural ones and peers to pressure-test your thinking. How do you move fast, keep your team aligned, and stay accountable to the outcome?
Shipping outcomes, not features Each initiative is measured by a metric — a conversion rate, a retention curve, a pro-funnel KPI, a unit-economics shift. You're accountable for the number alongside your team. How do you scope to actually move it, decide what *not* to build, and have the discipline to follow up 2-4 weeks after launch?
Requirements
You don't need every box checked. You need deep skill in at least one of our stacks plus credible production experience with AI coding agents.
Benefits
To apply: https://weworkremotely.com/remote-jobs/lawnstarter-staff-software-engineer-product-2
