Backend Expert (node.js)

🏢 Summary: Freelance Senior QA Engineer role focused on testing IoT and connected device solutions, including mobile applications and hardware–software integrations. The position involves designing test strategies from scratch and ensuring quality across firmware, connectivity, and device ecosystems. The role supports diverse IoT projects in a fully remote B2B setup. 🗂️ Requirements: 4+ years of professional experience as a mobile tester, Experience building testing approach and test cases from scratch, Experience with IoT testing including firmware, OTA, connectivity, hardware–software interaction, Knowledge of IoT protocols: Bluetooth, BLE, NFC, Wi-Fi, Thread, Understanding of hardware workflows: firmware updates, pairing, resets, failure scenarios, Experience with test case management tools: TestRail or Qase, Experience with Atlassian tools, English level B2 or higher 📃 Skills: IoT, Mobile, Testing, Firmware, OTA, Bluetooth, BLE, NFC, Wi-Fi, Thread, Hardware, TestRail, Qase, Atlassian 🏢 Description: We’re currently seeking a passionate freelance Senior QA Engineer to join our forthcoming projects. As a freelancer cooperating with intent, you'll have the chance to work on diverse IoT projects, contributing your expertise to our team. intent has over 10+ years of experience in helping to conceptualize, design, and build apps for IoT and connected devices. We're a software house that acts as a specialized think partner for products at the intersection of physical and digital (like wearables and IoT) - from net-new to products looking to enter a competitive and established niche. Some of our clients include Oura, BOSE, and McIntosh audio systems. 💰 Salary : 12,5-17K on B2B. 💎 Requirements : At least 4 years of professional experience as a mobile tester. Experience building testing approach or test cases from scratch – not only maintaining existing test suites Experience with IoT testing (firmware, OTA, device connectivity, hardware–software interaction) Familiarity with IoT protocols (e.g., Bluetooth, BLE, NFC, Wi-Fi, Thread) Practical understanding of hardware workflows (e.g. firmware updates, pairing, resets, failure scenarios) Experience with test case management tools (e.g. TestRail, Qase) and Atlassian tools. At least B2 English skills (both written and spoken). Self-reliance, responsibility for assigned tasks, and effective time management. Keeping track of industry trends and proactively incorporating them into the company's technologies. Engagement and team-play. It’d be nice if you have: Knowledge of the creation and maintenance of automated tests. Practice in API testing (Postman preferred) and database testing. Experience with web app testing and web-debugging proxy tools (e.g. Charles, Proxyman). ISTQB Foundation (or higher) certificate. Experience in working in Agile or Scrum environments. What you'll do: Compatibility Testing: Conduct compatibility testing to ensure seamless interoperability between various IoT devices, sensors, gateways, protocols, and platforms. Functional Testing: Verify the functional correctness of IoT applications by testing features such as data collection, storage, processing, real-time monitoring, control, and integration with other systems. Performance Testing: Evaluate the performance of IoT systems under different workloads, network conditions, and environmental factors to identify bottlenecks, latency issues, and scalability limitations. Security Testing: Conduct thorough security assessments to identify and mitigate vulnerabilities in IoT devices, communication protocols, data transmission, storage, access controls, and authentication mechanisms. Estimate your work. Mentor less experienced team members to help them succeed and grow. Participate in the requirement discussion meetings and daily calls, and provide feedback on inconsistencies and open issues. Take part in knowledge sharing with other tech freaks. 🏝️ Perks and benefits : 100% remote work, Flexible working hours with core hours between 10:00 and 18:00 CET, with some client meetings scheduled up to 20:00 CET (approx. 2 per week). Moreover, if after a few months of working together, we're all on the same page, then definitely we’ll gladly invite you to join our internal intent team for long-term collaboration and you’ll enjoy all the benefits, such as paid holidays, paid sick leave, training budget, and much more! Recruitment process: A screening call with an HR person (45 mins). A technical interview (60-90 mins). Final feedback is received within a week after the interview. Join us on this exciting journey where you'll have the opportunity to work on groundbreaking projects and shape the future of the IoT industry. Embrace the challenge, unleash your creativity, and be part of a team that is passionate about making a real impact in the world of technology 🦾

🏢 Summary: Freelance Senior QA Engineer role focused on mobile and IoT projects, responsible for building testing strategies from scratch and ensuring quality across connected devices and applications. The position involves functional, compatibility, performance, and security testing of IoT systems, including firmware and device connectivity. Fully remote B2B cooperation with opportunities to mentor others and influence testing processes. 🗂️ Requirements: Minimum 4 years of experience as a mobile tester, Experience building testing strategy and test cases from scratch, Experience in IoT testing including firmware, OTA, and device connectivity, Knowledge of IoT protocols such as Bluetooth, BLE, NFC, Wi-Fi, Thread, Understanding of hardware workflows including firmware updates and device pairing, Experience with test case management tools, Experience with Atlassian tools, B2 level English proficiency 📃 Skills: IoT, Mobile, Firmware, OTA, Bluetooth, BLE, NFC, Wi-Fi, Thread, TestRail, Qase, Jira, Postman, API, SQL, Charles, Proxyman, ISTQB, Agile, Scrum 🏢 Description: We’re currently seeking a passionate Senior QA Engineer for our mobile and IoT projects for a freelance cooperation. At the moment, we have a few open positions for our ongoing projects, which are heavily focused on IoT and mobile. As a freelancer working with intent, you'll have the chance to contribute your expertise to other IoT projects as well. intent has over 10+ years of experience in helping to conceptualize, design, and build apps for IoT and connected devices. We're a software house that acts as a specialized think partner for products at the intersection of physical and digital (like wearables and IoT) - from net-new to products looking to enter a competitive and established niche. Some of our clients include Oura, BOSE, and McIntosh audio systems. 💰 Salary : 12,5-17K on B2B. 💎 Requirements : At least 4 years of professional experience as a mobile tester. Experience building testing approach or test cases from scratch – not only maintaining existing test suites Experience with IoT testing (firmware, OTA, device connectivity, hardware–software interaction) Familiarity with IoT protocols (e.g., Bluetooth, BLE, NFC, Wi-Fi, Thread) Practical understanding of hardware workflows (e.g. firmware updates, pairing, resets, failure scenarios) Experience with test case management tools (e.g. TestRail, Qase) and Atlassian tools. At least B2 English skills (both written and spoken). Self-reliance, responsibility for assigned tasks, and effective time management. Keeping track of industry trends and proactively incorporating them into the company's technologies. Engagement and team-play. It’d be nice if you have: Knowledge of the creation and maintenance of automated tests. Practice in API testing (Postman preferred) and database testing. Experience with web app testing and web-debugging proxy tools (e.g. Charles, Proxyman). ISTQB Foundation (or higher) certificate. Experience in working in Agile or Scrum environments. What you'll do: Compatibility Testing: Conduct compatibility testing to ensure seamless interoperability between various IoT devices, sensors, gateways, protocols, and platforms. Functional Testing: Verify the functional correctness of IoT applications by testing features such as data collection, storage, processing, real-time monitoring, control, and integration with other systems. Performance Testing: Evaluate the performance of IoT systems under different workloads, network conditions, and environmental factors to identify bottlenecks, latency issues, and scalability limitations. Security Testing: Conduct thorough security assessments to identify and mitigate vulnerabilities in IoT devices, communication protocols, data transmission, storage, access controls, and authentication mechanisms. Estimate your work. Mentor less experienced team members to help them succeed and grow. Participate in the requirement discussion meetings and daily calls, and provide feedback on inconsistencies and open issues. Take part in knowledge sharing with other tech freaks. 🏝️ Perks and benefits : 100% remote work, Flexible working hours with core hours between 10:00 and 18:00 CET, with some client meetings scheduled up to 20:00 CET (approx. 2 per week). Moreover, if after a few months of working together, we're all on the same page, then definitely we’ll gladly invite you to join our internal intent team for long-term collaboration and you’ll enjoy all the benefits, such as paid holidays, paid sick leave, training budget, and much more! Recruitment process: A screening call with an HR person (45 mins). A technical interview (60-90 mins). Final feedback is received within a week after the interview. Join us on this exciting journey where you'll have the opportunity to work on groundbreaking projects and shape the future of the IoT industry. Embrace the challenge, unleash your creativity, and be part of a team that is passionate about making a real impact in the world of technology 🦾

🏢 Summary: Freelance Senior Android Developer role focused on building and maintaining high-performance Android applications for IoT and connected device projects. The position involves developing Kotlin-based apps, integrating with Bluetooth Low Energy peripherals, and contributing to architecture and code quality in a remote environment. It offers collaboration on upcoming IoT projects with potential for long-term engagement. 🗂️ Requirements: 3+ years of commercial Android development experience, Strong experience with Kotlin, Experience with Kotlin Coroutines, Experience writing Unit Tests / TDD, Knowledge of Koin and Hilt, Knowledge of Jetpack Compose, Experience with Bluetooth Low Energy communication, B2 level English (written and spoken), Experience reviewing code and maintaining high-quality standards 📃 Skills: Android, Kotlin, Coroutines, UnitTesting, TDD, Koin, Hilt, JetpackCompose, BLE, JUnit, Mockito, Robolectric, MVP, Flutter, Jira, Confluence 🏢 Description: In short 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. Why intent? 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. Who this role is NOT for 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. What you'll do 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 What we're looking for 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 Nice to have 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 How we work 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. What you'll get 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. Your first weeks 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. Recruitment process 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. One more thing 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.

🏢 Summary: Freelance Senior QA Engineer role focused on testing mobile and IoT applications, ensuring quality across connected devices, platforms, and systems. The position involves compatibility, functional, performance, and security testing for IoT solutions in a remote B2B setup. Opportunity to contribute to upcoming IoT projects with potential for long-term collaboration. 🗂️ Requirements: 4+ years of professional experience in mobile app testing, Experience with test case management tools (e.g. TestRail, Qase), Experience with Atlassian tools, Strong knowledge of software quality assurance principles, Experience in compatibility, functional, performance, and security testing, English proficiency at minimum B2 level (written and spoken) 📃 Skills: IoT, Mobile, TestRail, Qase, Jira, Confluence, Postman, API, SQL, Charles, Proxyman, Agile, Scrum, ISTQB 🏢 Description: We’re currently seeking a passionate freelance Senior QA Engineer to join our forthcoming projects. As a freelancer cooperating with intent, you'll have the chance to work on diverse IoT projects, contributing your expertise to our team. At the moment, there are no ongoing projects, but we eagerly await upcoming opportunities and are keen to engage with talented QA Engineers. intent has over 10+ years of experience in helping to conceptualize, design, and build apps for IoT and connected devices. We're a software house that acts as a specialized think partner for products at the intersection of physical and digital (like wearables and IoT) - from net-new to products looking to enter a competitive and established niche. Some of our clients include Oura, BOSE, and McIntosh audio systems. 💎 Requirements : 4+ years in mobile app testing, good command of written and spoken English (B2). 💰 Salary : 12,5-17K on B2B. 🏝️ Perks and benefits : 100% remote work, flexible working hours, and knowledge-sharing initiatives. Moreover, if after a few months of working together, we're all on the same page, then definitely we’ll gladly invite you to join our internal intent team for long-term collaboration and you’ll enjoy all the benefits, such as paid holidays, paid sick leave, training budget, and much more! What you'll do: Compatibility Testing: Conduct compatibility testing to ensure seamless interoperability between various IoT devices, sensors, gateways, protocols, and platforms. Functional Testing: Verify the functional correctness of IoT applications by testing features such as data collection, storage, processing, real-time monitoring, control, and integration with other systems. Performance Testing: Evaluate the performance of IoT systems under different workloads, network conditions, and environmental factors to identify bottlenecks, latency issues, and scalability limitations. Security Testing: Conduct thorough security assessments to identify and mitigate vulnerabilities in IoT devices, communication protocols, data transmission, storage, access controls, and authentication mechanisms. Estimate your work. Mentor less experienced team members to help them succeed and grow. Participate in the requirement discussion meetings and daily calls, and provide feedback on inconsistencies and open issues. Take part in knowledge sharing with other tech freaks. What we expect: At least 4 years of professional experience as a mobile tester. Experience with test case management tools (e.g. TestRail, Qase) and Atlassian tools. Solid knowledge in the field of software quality assurance. At least B2 English skills (both written and spoken). Out-of-the-box thinking and creativity (we care about your problem-solving skills). Precision, curiosity, perceptiveness, patience. Self-reliance, responsibility for assigned tasks, and effective time management. Keeping track of the industry trends and taking the initiative to incorporate these into the company technologies. Engagement and team-play. It’d be nice if you have: Experience in projects involving physical devices (e.g. wearables). Knowledge of the creation and maintenance of automated tests. Practice in API testing (Postman preferred) and database testing. Experience with web app testing and web-debugging proxy tools (e.g. Charles, Proxyman). ISTQB Foundation (or higher) certificate. Experience in working in Agile or Scrum environments. Recruitment process: A screening call with an HR person (20-30 mins). A technical interview (60-90 mins). Final feedback received within a week after the interview. Join us on this exciting journey where you'll have the opportunity to work on groundbreaking projects and shape the future of the IoT industry. Embrace the challenge, unleash your creativity, and be part of a team that is passionate about making a real impact in the world of technology 🦾

🏢 Summary: Freelance Senior Flutter Developer role focused on building high-quality mobile applications for IoT and connected device projects. The position involves close collaboration with engineering teams to deliver new features, improve app reliability, and contribute to innovative product development. This is a remote B2B opportunity with potential for long-term cooperation. 🗂️ Requirements: Advanced knowledge of Flutter SDK, Advanced knowledge of Dart, Working knowledge of iOS, Working knowledge of Android, Experience with BLE, Experience with flutter_blue_plus, Scrum or Agile experience, English B2 level minimum 📃 Skills: Flutter, Dart, iOS, Android, BLE, flutter_blue_plus, Scrum, Agile, Jira, Confluence, Slack, Zoom, GSuite 🏢 Description: We’re currently seeking a passionate freelance Senior Flutter Developer to join our forthcoming projects. As a freelancer cooperating with intent, you'll have the chance to work on diverse IoT projects, contributing your expertise to our team. intent has over 10+ years of experience in helping to conceptualize, design, and build apps for IoT and connected devices. We're a software house that acts as a specialized think partner for products at the intersection of physical and digital (like wearables and IoT) - from net-new to products looking to enter a competitive and established niche. Some of our clients include Oura, BOSE, and McIntosh audio systems. 💎 Requirements : Advanced knowledge of Flutter and Dart, working knowledge of iOS and Android, English min. B2. 💰 Salary: 15 - 30K net on B2B depending on your experience. 🏝️ Perks and benefits: 100% remote work, flexible working hours, and knowledge-sharing initiatives. Moreover, if after a few months of working together, we're all on the same page, then definitely we’ll gladly invite you to join our internal intent team for long-term collaboration and you’ll enjoy all the benefits, such as paid holidays, paid sick leave, training budget, and much more! What we expect: Knowing your way around the Flutter SDK, bonus points for commercial experience Advanced knowledge of Dart programming language. Working knowledge of iOS and Android platforms. Experience with BLE, particularly using the flutter_blue_plus library. At least B2 English skills (both written and spoken). Out-of-the-box thinking and creativity (we care about your problem-solving skills, not the lines of code you write). Willingness to adopt our programming style and suggest new ideas Keeping track of industry developments and taking the initiative to incorporate these into the company technologies. Engagement and team-play. Willingness to participate in the events outside .intent (such as hackathons, conferences, etc.) and share your knowledge inside .intent. Scrum (or other Agile) development method experience. Attention to detail. What you'll do: Delivering world-class mobile apps. Work closely with the engineering team to deliver exciting new features. Improve reliability by fixing issues reported by the QA team. Brainstorm potential product improvements. Participate in knowledge-sharing activities within and outside of intent. Tools you’ll use: Jira, Confluence. Slack, Zoom, GSuite. Recruitment process: A screening call with an HR person (45 mins). A technical interview (60-90 mins). Final feedback received within a week after the interview. Join us on this exciting journey where you'll have the opportunity to work on groundbreaking projects and shape the future of the IoT industry. Embrace the challenge, unleash your creativity, and be part of a team that is passionate about making a real impact in the world of technology 🦾

🏢 Summary: Full Stack Engineer role focused on building end-to-end IoT solutions connecting edge devices, cloud services, and user-facing applications. The position involves backend development with Python, frontend work with React, and integration with AWS IoT services including Greengrass. You will contribute to cloud-based, distributed systems handling device communication and time-series data. 🗂️ Requirements: 3–5 years of professional software development experience, Practical experience with Python in backend or systems development, Experience building APIs with FastAPI or similar frameworks, Hands-on experience developing user interfaces with React, Experience with AWS IoT Core and MQTT messaging, Basic to intermediate experience with AWS IoT Greengrass and edge deployments, Experience with InfluxDB for time-series data, Awareness of UDS and J1939 communication protocols, Understanding of distributed systems and cloud-based architectures 📃 Skills: Python, FastAPI, React, AWS, AWSIoTCore, MQTT, Greengrass, InfluxDB, UDS, J1939, REST, Edge, Cloud 🏢 Description: We are looking for a Full Stack Engineer with a strong interest and hands-on experience in AWS IoT and cloud-based systems . You will contribute to building and maintaining end-to-end solutions that connect devices, cloud services, and user-facing applications. In this role, you’ll work closely with senior engineers, product managers, and other teams to design, implement, and improve IoT-driven features, while continuing to develop your skills in edge computing, backend development, and modern frontend technologies. Responsibilities Contribute to the design and implementation of end-to-end features across backend, frontend, and IoT components Develop backend services using Python and FastAPI Support and extend solutions based on AWS IoT Core and MQTT Work with AWS IoT Greengrass to deploy and manage components on edge devices, with guidance from senior team members Build and maintain frontend applications using React Store, query, and visualize time-series data using InfluxDB Collaborate on CI/CD pipelines and follow deployment and automation best practices Requirements 3–5 years of professional experience in software development Practical experience with Python in backend or systems development Hands-on experience building APIs with FastAPI or similar frameworks Experience developing user interfaces with React Familiarity with AWS IoT Core and MQTT-based messaging Basic to intermediate experience with AWS IoT Greengrass , including understanding edge deployment concepts Experience working with or learning InfluxDB for time-series data Awareness of device or vehicle communication protocols such as UDS and J1939 (hands-on experience is a plus) Understanding of distributed systems and cloud-based architectures Ability to work collaboratively in a team and take ownership of assigned tasks Good problem-solving skills and willingness to learn complex systems Nice to Have Familiarity with CI/CD pipelines and infrastructure-as-code concepts Basic knowledge of observability and system monitoring We Offer Opportunity to grow into AWS IoT and edge computing expertise Hands-on experience with real-world connected device systems Mentorship and collaboration with experienced engineers A modern tech stack covering cloud, edge, backend, and frontend Supportive environment focused on learning, quality, and continuous improvement

🏢 Summary: Freelance Senior Embedded C Engineer role focused on developing and debugging firmware for STM32-based connected devices with multi-radio architectures. The position involves working with FreeRTOS and the Cypress/Infineon ecosystem to deliver production-grade embedded solutions. Engineers collaborate cross-functionally and use AI tools to enhance daily development workflows. 🗂️ Requirements: 5+ years embedded C development, Hands-on experience with ARM Cortex-M, Strong practical experience with STM32, Experience with Modus SDK or Cypress/Infineon ecosystem, Solid knowledge of FreeRTOS in production systems, Experience with BLE and Wi-Fi coexistence, Ability to work with multi-radio architectures, Proficiency in hardware-level debugging, Ability to read schematics and datasheets 📃 Skills: C, STM32, ARM, Cortex-M, FreeRTOS, Modus, Cypress, Infineon, BLE, Wi-Fi, JTAG, SWD, LogicAnalyzer, Oscilloscope, Sniffer 🏢 Description: In short If you're a Senior Embedded C engineer who gets why a misbehaving radio at 2 AM is both annoying and the best puzzle of your week, we'd love to talk. You'd be joining us on a freelance, time & material basis: you're paid for the hours you actually work on real client projects. We're ready to start right away, at full capacity. Why intent? We've been designing and co-creating connected devices since 2008. Wearables, smart audio, health-tech hardware for clients like Oura, BOSE, and Neurable, backed by investors like a16z and Founders Fund. We're 60+ people, fully remote, and we've been AI-native since before LinkedIn influencers discovered the term. We use AI every day, in actual work, not just in company decks. If your C code has ever made an antenna, a sensor, or a medical-grade device behave itself, you already get why we love what we do. Who this role is NOT for If you like being handed a spec, a ticket, and a "wake me when it's done", we're probably not your people. Embedded at intent means chasing edge cases across silicon, stacks, and radios, sometimes in the same afternoon. We're looking for engineers who ask "why" before "how", who read a datasheet and then actually question it, and who know that "it works on my bench" is the beginning of the conversation, not the end. We're AI-native and we expect you to treat AI as a daily multiplier (digging through vendor docs, drafting test harnesses, reasoning about tricky timing issues), not as a gimmick. On freelance: we're not expecting you to rewrite our toolchain in week one. What we do expect is ownership of what you touch, straight talk when things get complicated, and actual curiosity about the device on the end of your JTAG. What you'll do • Build and maintain embedded firmware in C for STM32-based connected devices • Work inside the Modus SDK and the broader Cypress/Infineon ecosystem to make hardware do what the spec says, and a few things it didn't • Integrate and tune FreeRTOS: tasks, priorities, queues, interrupts, the whole discipline of not breaking real-time behavior • Tackle multi-radio architectures in practice: BLE and Wi-Fi coexistence, arbitration, throughput versus power trade-offs• Collaborate closely with hardware, mobile, QA, and the client's engineering team on cross- functional problems • Debug the unglamorous stuff: logic analyzer, scope, sniffer, logs that don't want to exist • Contribute to architecture decisions, code reviews, and knowledge-sharing inside the Firmware & Hardware chapter • Use AI tools as part of your daily workflow, not as a party trick What we're looking for • 5+ years of hands-on embedded C development on ARM Cortex-M platforms • Strong, proven STM32 experience (not "I ran one tutorial") • Real work with the Modus SDK, or at the very least solid time inside the Cypress/Infineon ecosystem • FreeRTOS: you know where the footguns are, and you don't find them by accident • Proven experience with multi-radio architectures, especially BLE and Wi-Fi coexistence: timing, arbitration, co-existence schemes, real-world throughput issues • Comfortable reading schematics, board files, datasheets, and errata without flinching • Fluent with the debugging toolkit: JTAG/SWD, logic analyzers, scopes, BLE sniffers, serial tracing • English at B2+, because our clients are mostly US-based • Problem-solving over line-counting: we'll take a creative thinker over a fast typist any day • Initiative, ownership, and the kind of communication where people don't have to guess what you meant Nice to have • Exposure to MICS band or other medical-grade radio protocols • Familiarity with medical device development standards (IEC 62304, ISO 13485, ISO 14971) • Experience shipping firmware through formal V&V or regulatory processes • Low-power optimization chops: sleep modes, duty cycling, battery life accounting • Previous work with signal processing or sensor fusion on embedded targets • Genuine curiosity about the devices you build, not just the code behind them What you'll get • 110-190 PLN/h net B2B, depending on your experience • Truly flexible hours (most of the team works 10-18 CET, but you organize your day) • Fully remote (all Europe) • Access to our internal knowledge-sharing: tech talks, experiments, side projects 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. Recruitment process 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.

🏢 Summary: Senior Backend Engineer role focused on building and scaling backend systems for an AI-driven product that transforms complex government data into actionable insights. The position involves designing data ingestion, processing pipelines, and distributed infrastructure from scratch, with full ownership from architecture to production. You will work closely with a small senior team to deliver scalable, production-ready systems. 🗂️ Requirements: 6+ years of Backend Engineering experience, Experience in JVM ecosystem, Experience in product companies (B2B SaaS preferred), Experience designing and owning backend systems in production, Strong knowledge of system design and scalability, Experience building asynchronous or distributed systems, Ability to make and justify technical decisions, Fluency in English, Valid work authorization in Europe or LATAM 📃 Skills: Kotlin, Java, JVM, SQL, GCP, Messaging, Queues, DistributedSystems, SystemDesign, DataPipelines, LLMs, AI 🏢 Description: About the role We’re looking for a Senior Backend Engineer to join our early team and help build our product from zero to one. You’ll work on a product that helps companies navigate complex government data, from contracts and grants to market signals and turn it into actionable insights using AI. On the backend side, this means working on data ingestion, processing, and the infrastructure that powers search and AI-driven workflows at scale. You’ll collaborate closely with a small, senior team and have real ownership, from shaping solutions to shipping them to production and improving them over time. You might be a fit if you: Must have: 6+ years of experience as a Backend Engineer, preferably in the JVM ecosystem (we use Kotlin on the backend) Experience working in product companies (B2B SaaS preferred) with direct impact on shipped features Experience working in small companies or startups would be a strong advantage Experience designing and owning backend systems in production (from initial design to deployment and ongoing improvements) Strong understanding of system design, including scalability, failure handling, and trade-offs Experience building asynchronous or distributed systems (e.g. messaging, queues, event-driven systems) Ability to make and justify technical decisions, not just implement given solutions Fluency in written and spoken English Nice to have: Experience with large-scale data processing, scraping, or data pipelines Experience working with LLMs / AI-related systems Experience with GCP or similar cloud environments How We Work Build Bridges to Help Customers Win - We pride ourselves on being obsessively customer-centric. Shooting Star Speed - We move with extreme speed. We value momentum, decisiveness, and the ability to accelerate when it matters. Fun Is a Feature - Fun is a Feature means we intentionally design Starbridge to be an energizing place to do hard work. Joy, humor, and camaraderie make great teams faster, sharper, and more resilient. In the Arena - We believe the best ideas come from living close to the work, feeling the friction, hearing the nuance, and experiencing the details firsthand. Benefits include: Competitive salary + early-stage equity Unlimited PTO Regular off-sites (NYC + global locations) Interview Process We move fast — really fast. Getting back to someone today beats tomorrow, and our interview process reflects that mindset. Please keep us posted on your timeline so we can move quickly and speed things up where needed. After submitting your application, the team reviews your CV and statement of exceptional work. If your application passes this stage, you will be invited to a 30-minute interview during which a member of our team will make sure you're a good fit for the role. You will have the opportunity ask questions and learn more about the role as well. We'll then send you a programming challenge that consists of two parts: LeetCode and SQL. Beyond that step, you will enter the main process, which consists of three interviews: System design exercise hands-on. Live coding in Java/Kotlin. Product thinking and past work. All interviews will be conducted via Google Meet. Eligibility to Work in Europe or LATAM: Candidates must hold valid authorization to work in the country where they will be based. At this time, we are unable to offer visa sponsorship or assist with work permit applications.

🏢 Summary: Backend-focused Software and Cloud Engineer role focused on building scalable IoT and cloud-native platforms in AWS. The position involves developing backend services, designing REST APIs, and implementing event-driven architectures for device communication and telemetry processing. You will also contribute to infrastructure, deployment, and data processing workflows in production cloud environments. 🗂️ Requirements: Completed degree in Computer Science or related technical field, 3+ years of backend development experience with TypeScript and Node.js, Strong knowledge of REST API design and NestJS, Hands-on experience with AWS services (Lambda, S3, SQS, IoT Core), Experience with PostgreSQL and ORM tools, Basic experience with containerization, CI/CD, and infrastructure as code, Understanding of cloud-native or event-driven architectures 📃 Skills: TypeScript, Node.js, NestJS, Fastify, OpenAPI, AWS, Lambda, S3, SQS, IoTCore, MQTT, Kinesis, Timestream, PostgreSQL, Aurora, TypeORM, Terraform, OpenTofu, Docker, CICD, Vue, REST 🏢 Description: Responsibilities We are looking for a hands-on software and cloud engineer with a strong backend focus who wants to grow within IoT and cloud-native systems . You will contribute to building scalable IoT and cloud platforms at OBI Smart Technologies Poland , working on systems handling device communication , telemetry ingestion , and automation workflows . You collaborate closely with backend engineers, architects and product teams to deliver reliable and production-ready solutions across AWS -based environments. Your key responsibilities include: Develop and maintain backend services using TypeScript, Node.js, NestJS and Fastify . Design and implement REST APIs using OpenAPI standards and validation patterns . Contribute to AWS - based IoT and event-processing architectures including IoT Core, MQTT and telemetry ingestion . Support development of data processing and automation workflows using Lambda, SQS, Kinesis and Timestream . Work with PostgreSQL or Aurora databases and maintain persistence layers using TypeORM . Contribute to infrastructure and deployment processes using Terraform or OpenTofu , Docker and CI/CD pipelines . Support monitoring , testing , observability and operational stability while occasionally contributing to frontend components in Vue 3. Benefits Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose medical care package, meal tickets, sports cards (we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms), cinema tickets, shop vouchers, discounts and many more. Language Courses – you'll have access to a multi-language learning platform enabling you to practice your language skills and learn new ones! Regular and systematic further training opportunities - both internally and from external providers. We support your ongoing learning and development. Cooperation within an internal community is our everyday reality. We have networking events, coding challenges, and company parties for different occasions. Qualifications Completed university degree in Computer Science or a comparable technical field. 3+ years of experience in backend development using TypeScript and Node.js . Good knowledge of REST API design and frameworks such as NestJS. Hands-on experience with AWS services such as Lambda, S3, SQS or IoT Core . Experience working with relational databases such as PostgreSQL and ORM tools. Basic experience with containerization , CI/CD pipelines and infrastructure as code tools. Understanding of cloud-native or event-driven architectures Fluent communication skills in English and Polish and availability to work in a hybrid mode with 1–2 office visits per week. About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "

🏢 Summary: Backend and Cloud Engineer role focused on designing and scaling IoT-driven, cloud-native platforms in AWS. The position involves building distributed backend services, event-driven architectures, and telemetry processing systems while owning infrastructure and CI/CD pipelines. The engineer contributes to architecture decisions and ensures secure, scalable, and production-ready solutions. 🗂️ Requirements: University degree in Computer Science or related field, 5+ years of backend engineering experience, Strong expertise in TypeScript and Node.js, Hands-on experience with NestJS and scalable REST APIs, Deep experience with AWS services including IoT Core, Lambda, Kinesis, SQS, Timestream, IAM, CloudWatch, Experience with infrastructure as code and Kubernetes, Experience with containerization and CI/CD pipelines, Strong knowledge of distributed systems and event-driven architectures, Experience with IoT communication patterns such as MQTT, Fluent English and Polish, Availability for hybrid work (1–2 office visits per week) 📃 Skills: TypeScript, Node.js, NestJS, Fastify, REST, OpenAPI, AWS, IoT, IoTCore, Lambda, Kinesis, SQS, Timestream, IAM, CloudWatch, MQTT, PostgreSQL, Aurora, Terraform, OpenTofu, Kubernetes, Helm, GitLab, CI/CD 🏢 Description: Responsibilities We are looking for a strong backend and cloud engineer with deep experience in IoT and distributed systems who wants to shape and scale modern cloud - native platforms . You will design and evolve IoT and cloud architectures at OBI Smart Technologies Poland , working across device communication , telemetry processing and automation workflows . You act as a technical driver within the team, contributing to architecture decisions and ensuring scalable, secure and production-ready solutions across AWS environments . Your key responsibilities include: Design and develop scalable backend services using TypeScript, Node.js, NestJS and Fastify within distributed systems. Lead the design and evolution of REST APIs using OpenAPI standards and robust validation and versioning strategies. Design and operate AWS - native IoT and event-driven architectures using IoT Core, MQTT, Lambda, Kinesis and related services. Build scalable data processing and automation workflows for telemetry and energy-related data using Timestream , SQS and streaming services . Design and optimize persistence layers using PostgreSQL or Aurora and ensure data consistency and performance. Own infrastructure and deployment design using Terraform or OpenTofu , Kubernetes , Helm and GitLab CI/CD pipelines . Drive engineering best practices , observability , reliability and security standards while supporting GDPR-related backend processes and mentoring team members. Benefits Motivizer Benefits Platform to choose and manage all your benefits in one place. You receive a budget (550 PLN monthly). You can choose medical care package, meal tickets, sports cards (we have Multisport and on preferential terms, we have membership cards to one of the most popular Gyms), cinema tickets, shop vouchers, discounts and many more. Language Courses – you'll have access to a multi-language learning platform enabling you to practice your language skills and learn new ones! Regular and systematic further training opportunities - both internally and from external providers. We support your ongoing learning and development. Cooperation within an internal community is our everyday reality. We have networking events, coding challenges, and company parties for different occasions. Qualifications Completed university degree in Computer Science or a comparable technical field. 5+ years of professional experience in backend engineering with strong expertise in TypeScript and Node . js . Strong hands-on experience with NestJS and designing scalable REST APIs in production environments. Deep experience with AWS cloud services including IoT Core , Lambda , Kinesis , SQS , Timestream , IAM and CloudWatch . Strong experience with infrastructure as code , Kubernetes , containerization and CI/CD pipelines . Solid understanding of distributed systems, event-driven architectures and IoT communication patterns such as MQTT . Ability to translate complex business requirements into scalable technical solutions. Fluent communication skills in English and Polish and availability to work in a hybrid mode with 1–2 office visits per week. About OBI Smart Technologies WHO ARE WE: We are a joint venture between OBI and Reply Group, responsible for co-designing, building and operating mission-critical digital platforms for commerce, customer service, and omnichannel retail. OUR MISSION: " We unite technology leadership with deep retail vision to implement standardized processes and scalable digital products that drive efficient support for one of Europe’s largest DIY retailers. Leveraging proven best practices, we advance the internationalization of products and the digital mindset of our partners, delivering consistent and business-critical solutions to support the targets of our customer. "