Embedded Firmware Developer (f/m/x)

🏢 Summary: Development and maintenance of embedded software for industrial control devices, focused on communication components on a new hardware platform. The role covers application layer and middleware development in an RTOS environment, combining new feature implementation with refactoring and testing of existing systems. It is key to ensuring stability and integration of the control platform. 🗂️ Requirements: Very good knowledge of C++ in embedded systems (C++11, STL), Experience with real-time operating systems, Knowledge of networking concepts and ISO/OSI model, Experience with communication protocols (Ethernet, TCP/IP), Ability to debug and test embedded software on target devices, Experience working on application layer and middleware, Fluent English, Fluent Polish, Residence in Poland, Availability to work hybrid from Katowice office 3 days per week 📃 Skills: C++, STL, RTOS, Ethernet, TCP/IP, ISO/OSI, Embedded, Debugging, Testing 🏢 Description: Dołącz do zespołu odpowiedzialnego za rozwój i utrzymanie oprogramowania dla przemysłowych urządzeń sterujących. Zespół pracuje nad wprowadzaniem produktów na nową platformę sprzętową, ze szczególnym naciskiem na obszary komunikacyjne. Zakres prac obejmuje głównie warstwę aplikacyjną oraz middleware działające w środowisku RTOS. Rola ma kluczowe znaczenie dla stabilności i rozwoju platformy, ponieważ dotyczy komponentów odpowiedzialnych za komunikację i integrację systemu. Praca łączy rozwój nowych funkcjonalności z refaktoryzacją i testowaniem istniejących rozwiązań. Zespół pracuje hybrydowo z biura w Katowicach 3 dni w tygodniu. Twoje zadania Projektowanie i implementowanie oprogramowania embedded w języku C++ Rozwijanie funkcjonalności działających w środowisku RTOS Praca nad warstwą aplikacyjną i middleware systemu sterowania Integracja nowych funkcjonalności na nowej platformie sprzętowej Debugowanie oraz testowanie systemów wbudowanych Refaktoryzacja i utrzymywanie istniejącego kodu Wymagania Bardzo dobra znajomość języka C++ w systemach embedded (C++11, STL) Doświadczenie w pracy z systemami czasu rzeczywistego Znajomość zagadnień sieciowych oraz modelu ISO/OSI Obycie z protokołami komunikacyjnymi (Ethernet, TCP/IP) Umiejętność debugowania i testowania oprogramowania na urządzeniach wbudowanych Zdolność pracy w złożonym środowisku projektowym i współpracy zespołowej Biegła znajomość języka angielskiego Wymagane przebywanie na terenie Polski oraz płynna znajomość języka polskiego Mile widziane Wykorzystanie Pythona do automatyzacji, testów lub narzędzi developerskich Doświadczenie w pracy z systemami sterowania lub automatyką przemysłową Udział w refaktoryzacji dużych, wieloletnich codebase’ów Praca w środowisku zwinnych frameworków skalowanych (np. SAFe) Benefity, które czekają na Ciebie: Tytuł Great Place to Work od 2015 roku - to dzięki opiniom pracowników otrzymujemy tytuł i wdrażamy nowe pomysły Stabilność zatrudnienia - 2,1 MLD PLN przychodu, brak długów, od 2006 roku na rynku Dzielimy się zyskiem z pracownikami - od 2022 roku przeznaczyliśmy na ten cel już ponad 76 milionów PLN Bogaty pakiet benefitów - prywatna opieka zdrowotna, platforma kafeteryjna, zniżki na samochody i więcej Komfortowe miejsce pracy - pracuj w naszych biurach klasy A lub zdalnie Dziesiątki fascynujących projektów dla prestiżowych marek z całego świata 1 000 000 PLN rocznie na Twoje pomysły - taką kwotą wspieramy pasje i akcje wolontariackie naszych pracowników Stawiamy na Twój rozwój - meetupy, webinary, platforma szkoleniowa i blog technologiczny – Ty wybierasz Fantastyczna atmosfera stworzona przez wszystkich Sii Power People Dołącz do zespołu Sii – rozwijaj umiejętności, zdobywaj doświadczenie i buduj karierę!

🏢 Summary: Long-term opportunity for a Senior Embedded Linux Developer focused on industrial automation firmware and low-level embedded systems. The role involves developing secure embedded software for ARM-based devices using Embedded Linux and Zephyr RTOS, with strong emphasis on communication protocols, hardware interaction, and system integration. 🗂️ Requirements: 5+ years of commercial embedded software development with C, Strong experience with Embedded Linux development and debugging, Practical experience with Zephyr RTOS or strong RTOS background, Experience with STM32, Nordic, or similar ARM-based microcontrollers, Strong understanding of low-level embedded development, Experience developing embedded software modules, drivers, and firmware, Hands-on experience with UART, I2C, SPI, Modbus, CAN, RS-485, or Ethernet, Experience debugging software on physical embedded devices, Understanding of embedded security concepts and secure firmware updates, Upper-Intermediate English level 📃 Skills: C, Linux, Zephyr, RTOS, STM32, Nordic, ARM, UART, I2C, SPI, Modbus, CAN, RS-485, Ethernet, MQTT, Profibus, FatFS, LittleFS, lwIP 🏢 Description: We are looking for a Senior Embedded Linux Developer with strong C programming skills and practical experience with Zephyr RTOS and low-level embedded development. You will work on a long-term industrial automation project involving Embedded Linux platforms, ARM-based microcontrollers, device communication, and security-related functionality. Customer Our Customer is one of the leading global manufacturers of industrial pumps and valve systems, delivering solutions for industrial infrastructure, water management, and process automation. The company develops advanced equipment and connected technologies used in mission-critical industrial environments worldwide, with a strong focus on reliability, operational efficiency, and secure industrial communication. Project The project focuses on the development of embedded software for industrial pump systems and connected embedded devices. The team works on firmware and low-level software components running on Embedded Linux and Zephyr-based platforms, covering device communication, hardware interaction, system integration, and security-related functionality. You will collaborate closely with PMs, QA engineers, DevOps specialists, and embedded developers to build reliable, maintainable, and secure firmware solutions for ARM-based industrial devices. Requirements 5+ years of commercial embedded software development experience using C Strong hands-on experience with Embedded Linux development and debugging Practical experience with Zephyr RTOS / ZephyrOS or strong RTOS background with readiness to work deeply with Zephyr Experience working with STM32, Nordic, or similar ARM-based microcontrollers Strong understanding of low-level embedded development concepts, including peripherals, interrupts, memory management, boot flow, and hardware interaction Experience designing and implementing embedded software modules, drivers, and firmware components Hands-on experience with embedded communication interfaces and protocols such as UART, I2C, SPI, Modbus, CAN, RS-485, or Ethernet Experience debugging and troubleshooting software on physical embedded devices Understanding of embedded security concepts, including bootloaders, secure firmware updates, firmware signing/encryption, authentication, and secure communication Upper-Intermediate or higher English level Will be a plus Experience with MQTT Experience with Profibus or other industrial communication protocols Knowledge of FatFS, LittleFS, lwIP, or similar embedded libraries/stacks Responsibilities Design, develop, debug, document, and maintain embedded software components, drivers, and device-level functionality Develop firmware solutions for industrial pump systems and embedded devices Work within Embedded Linux and Zephyr RTOS environments Implement and maintain low-level hardware interaction and communication interfaces Analyze technical approaches and provide recommendations to the Customer and project team Debug and troubleshoot software issues on real embedded hardware Participate in software and hardware integration activities Collaborate with PMs, QA engineers, DevOps specialists, and embedded developers throughout the development lifecycle Identify and escalate technical risks, blockers, and architectural concerns when necessary

🏢 Summary: The offer is for an Embedded Linux Expert responsible for kernel-level development and low-level system integration for next-generation network switch platforms. The role focuses on developing and maintaining Linux kernel modules, bringing up new hardware boards, and optimizing embedded Linux systems for high-performance networking. You will work closely with hardware and firmware teams to ensure stable and efficient system integration. 🗂️ Requirements: Minimum 5 years of commercial experience in embedded or similar role, Strong experience in C development, Strong experience in C++ development, Extensive knowledge of Linux kernel, Experience developing Linux kernel modules, Experience developing device drivers, Experience with UART, SPI, PCIe, I2C interfaces, Experience with x86 architectures, Experience with ARM architectures, Hands-on experience with bootloaders, Experience with BSP and board bring-up, Experience in debugging embedded Linux systems, Experience in performance tuning of embedded Linux systems 📃 Skills: C, C++, Linux, Kernel, DeviceDrivers, UART, SPI, PCIe, I2C, x86, ARM, Bootloaders, BSP, Debugging, PerformanceTuning 🏢 Description: We are looking for an Embedded Linux Expert to drive kernel-level development and low-level system integration for next-generation network switch platforms. You will shape the software foundations of our high-performance switching systems. By joining us, you become a member of the Embedded Competence Center at Sii is an internal organizational unit, bringing together more than 500 specialists nationwide! We are currently working on about 100 projects for 50 clients from various industries, including automotive, IoT, telecommunications, and medical. Your tasks Develop and maintain Linux kernel modules and device drivers Bring up new hardware boards and debug low-level boot issues Work with hardware and firmware teams to validate system integration Optimize kernel performance and stability for high-speed network workloads Contribute to internal Linux distributions and BSP maintenance Requirements Minimum 5 years of commercial experience in a similar position Extensive experience in C/C++ development in both user and kernel space Strong background in Linux kernel, device drivers, and peripheral interfaces (UART, SPI, PCIe, I2C) Experience with x86 and ARM architectures Hands-on experience with bootloaders, BSPs, and board bring-up Experience in debugging and performance tuning of embedded Linux systems Knowledge of Linux networking stack, DPDK, or netdev subsystem – strong advantage Excellent problem-solving skills, self-learner, team-player Good knowledge of spoken and written English (everyday communication) Residing in Poland required Nice to have Experience with communication and control protocols – advantage What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Engineering role focused on developing and optimizing high-performance networking software, Linux drivers, and data path components for next-generation DPU systems. The position involves C/C++ development on Linux, packet processing optimization, and close collaboration with hardware teams on system bring-up and feature enablement. Open to experienced engineers working on low-level, high-throughput embedded networking solutions. 🗂️ Requirements: Minimum 5 years of commercial experience in similar role, Strong C and C++ development on Linux, Experience with networking systems (NICs, packet processing, data plane, I/O stacks), Understanding of Ethernet, IP, TCP, UDP protocols, Knowledge of Linux kernel internals and driver APIs, Experience with debugging tools, Git, and CI/CD workflows, Residing in Poland 📃 Skills: C, C++, Linux, Kernel, Drivers, Networking, NIC, Ethernet, IP, TCP, UDP, Git, CICD, DPDK, PCIe, DMA, RDMA 🏢 Description: As part of the DPU software group, you will develop and optimize networking software, drivers, and data path components for high-performance data processing. We have multiple openings for both junior and senior engineers, depending on experience level. You will work on cutting-edge Linux-based C/C++ systems, contributing to device driver development, packet processing frameworks, and system bring-up for next-generation DPU products. By joining us, you become a member of the Embedded Competence Center at Sii is an internal organizational unit, bringing together more than 500 specialists nationwide! We are currently working on about 100 projects for 50 clients from various industries including automotive, IoT, telecommunications and medical. Your tasks Develop and maintain DPU drivers and networking software stacks Integrate and optimize fast-path packet processing components Debug and profile data path performance issues Collaborate with hardware and firmware teams on feature enablement and bring-up Participate in design reviews, code reviews, and continuous integration efforts Requirements Minimum 5 years of commercial experience in a similar position Hands-on C/C++ development experience on Linux Experience in networking systems: NICs, packet processing, data plane, or I/O stacks Understanding of Ethernet/IP/TCP/UDP networking protocols Familiarity with Linux kernel internals and driver APIs Experience with debugging tools, git, and CI/CD workflows Good knowledge of spoken and written English (everyday communication) Strong analytical mindset, ownership, and collaborative attitude Residing in Poland required Nice to have Experience in device driver design, debugging, and testing (kernel or user space) Previous work with DPDK fast-path applications and optimization Hands-on SW/HW integration (PCIe, DMA, interrupts, counters, telemetry) Knowledge of congestion/flow control and high-rate packet processing Understanding of RDMA (verbs, QPs, completion model, transport semantics) Experience with unit/integration testing and performance observability tools What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Senior Embedded Engineer role focused on designing and delivering high-performance embedded software for robotic security devices on an existing hardware platform. The position covers full-stack embedded development from Linux/Android BSP and HAL to ARM-based MCUs with RTOS, including build systems and device drivers. It involves leading architecture, optimizing performance in constrained environments, and driving production-ready firmware development. 🗂️ Requirements: 5+ years commercial embedded development experience, Expertise in C, Expertise in C++17, Strong knowledge of RTOS, Experience with ARM or RISC-V microcontrollers, Strong Linux development experience, Experience with build systems (Buildroot, Yocto, CMake), Ability to develop and debug device drivers, Knowledge of I2C, SPI, UART, Wi-Fi protocols, Experience with network programming, Experience with multithreading on multicore systems, Proficiency with Git and CI/CD pipelines, Ability to read schematics and data sheets, Upper-Intermediate English (B2) 📃 Skills: C, C++, C++17, RTOS, ARM, RISC-V, Linux, Android, BSP, HAL, Buildroot, Yocto, CMake, Git, CI/CD, I2C, SPI, UART, Wi-Fi, Multithreading, Networking, DeviceDrivers 🏢 Description: Team Summary Our mission is to craft reliable, high-performance embedded solutions that protect millions of homes worldwide. We operate in a sophisticated ecosystem where hardware meets intelligence, following mature Agile methodologies with regular sprint cycles, rigorous code reviews, and robust CI/CD practices. Our culture is built on technical excellence: we emphasize comprehensive testing, top-tier security standards, and deep cross-functional collaboration. We pride ourselves on writing clean, maintainable code and fostering an environment of continuous knowledge sharing. Job Summary We are seeking a Senior Embedded Engineer to take ownership of critical software components within our robotic security devices. This is a great opportunity to participate in the development of a brand-new software solution for our existing robotic hardware platform. Responsibilities and Duties Design and architect high-quality embedded software in C and C++ (C++17) for next-generation camera-based security devices. Develop and optimize build systems (Buildroot, Yocto, CMake) for product firmware components. Work across the entire stack, from Linux/Android BSP and HAL to ARM-based MCUs running Real-Time Operating Systems (RTOS). Debug and resolve complex software, hardware, and network connectivity challenges across the entire device lifecycle. Lead the development of innovative features from conceptual design to global production. Optimize performance for highly resource-constrained embedded environments. Drive technical excellence through proactive code reviews and mentorship of the engineering team. Shape the product roadmap by participating in high-level architecture discussions and strategic decision-making. Partner with QA teams to design and implement comprehensive automated testing strategies. Maintain high documentation standards for software designs, APIs, and troubleshooting procedures. Qualifications and Skills 5+ years of commercial experience in embedded development, with mastery of C and C++ (C++17) and microcontroller architectures (ARM, RISC-V). Strong Linux background, with proficiency in developing within a Linux-based environment. Ability to read and interpret complex schematics and data sheets. Proficiency in modern engineering tools, including Git, CMake, and CI/CD pipelines. Solid understanding of network programming and multithreading on multicore systems. Deep knowledge of communication protocols (I2C, SPI, UART, Wi-Fi) and experience writing robust device drivers. Proven ability to drive complex projects independently and deliver production-ready results. Excellent skills for technical documentation and cross-functional collaboration. At least an Upper-Intermediate level in both written and spoken English (B2). Nice to have Hands-on experience with Embedded Linux BSP, Buildroot, or other Linux build systems. Understanding of RTOS. Understanding of modern security protocols and encryption methods. Experience with Android OS internals. Familiarity with ROS (Robot Operating System) and the robotics domain. Experience with Bluetooth connectivity. Proficiency in Python for automation and scripting. Experience leveraging AI-powered tools to enhance code quality and development velocity. We offer multiple benefits that include The environment of equal opportunities, transparent and value-based corporate culture, and an individual approach to each team member Competitive salary packages with performance-based annual reviews Opportunity to receive a Performance Bonus for your individual achievements and a Loyalty Bonus recognizing your dedication to the company Employment via Contract of Employment (UoP) in complete alignment with Polish Labour Law Guaranteed paid vacation, public holidays, and medical leaves as per statutory regulations Continuous growth and development opportunities through internal knowledge hubs, corporate courses, and free English classes Comprehensive private medical insurance to supplement your standard NFZ coverage.

🏢 Summary: The offer is for an Embedded Software Engineer responsible for developing Linux kernel modules, device drivers, and low-level system components for enterprise-class platforms. The role involves close collaboration with hardware and firmware teams, debugging complex system-level issues, and optimizing performance and diagnostics tools. It targets experienced engineers with strong kernel development expertise working on high-impact systems. 🗂️ Requirements: Minimum 5 years of embedded or kernel development experience, Strong C/C++ programming skills, Strong debugging skills, Knowledge of Linux OS internals, Knowledge of Linux kernel architecture, Familiarity with CPU/SoC architectures (x86/ARM), Experience with Linux build systems, Experience with diagnostic tools, Fluency in English 📃 Skills: C, C++, Linux, Kernel, DeviceDrivers, x86, ARM, BuildSystems, Debugging 🏢 Description: Join Sii and play a key role in delivering enterprise-class data platforms to international clients. As an Embedded Software Engineer, you will be responsible for developing Linux kernel modules, device drivers, and low-level system components. You will collaborate with cross-functional teams and support strategic data and analytics initiatives across the organization. Your tasks Design and implement Linux kernel modules and device drivers Collaborate with hardware and firmware teams on the new platform bring-up Debug complex system-level issues across firmware, kernel, and user space Optimize tools for performance monitoring and diagnostics Contribute to code reviews and adopt secure coding practices Requirements At least 5 years of embedded or kernel development experience Strong C/C++ programming and debugging skills Knowledge of Linux OS internals and kernel architecture Familiarity with CPU/SoC architecture (x86/ARM) Experience with Linux build systems and diagnostic tools Fluency in English What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Senior Embedded Developer role focused on designing and implementing middleware firmware and security mechanisms for IoT product controllers. The position involves developing low-level embedded software in C, creating bootloaders, integrating secure boot solutions, and automating testing within a SCRUM environment. Hybrid work model with on-site presence required three days per week. 🗂️ Requirements: Minimum 5 years experience as Embedded Developer, Proficiency in C for embedded systems, Experience with security best practices and code/design reviews, Experience developing firmware and low-level embedded software, Ability to work on-site 3 days per week, Fluent English, Fluent Polish, Residence in Poland 📃 Skills: C, C++, Python, MBEDTLS, RSA, CMake, Makefile, GoogleTest, Pytest, SCRUM, JIRA, Confluence 🏢 Description: We are seeking a Senior Embedded Developer to join a project focused on software development for IoT product controllers. By joining us, you become a member of the Embedded Competence Center at Sii - an internal organizational unit bringing together more than 500 specialists across Poland! We are currently working on approximately 100 projects for 50 clients across various industries, including automotive, IoT, telecommunications, and medical. We focus on development and knowledge exchange by organizing Embedded Academies, training, technical mentoring or enabling project changes. Your tasks Worked from the client’s office 3 days per week Designed and implemented middleware firmware for a comprehensive product platform using C Created bootloaders for a diverse range of hardware products Engineered core audio/video processing algorithms for reference applications Integrated Secure Boot mechanisms utilizing MBEDTLS, RSA, and asymmetric encryption Applied advanced security techniques to mitigate side-channel attacks Built unit tests using C++, Google Test framework Automated testing workflows with Python and Pytest Maintained and enhanced build systems based on Makefile and CMake Authored technical proposals and documentation in Confluence Collaborated with cross-functional product teams to deliver rapid support Operated in a dynamic SCRUM environment with 3-week sprints and regular releases (JIRA) Requirements Ability to work from the client's office 3 days a week (hybrid model) Min. 5 years of experience as an Embedded Developer Proficiency in C for embedded systems development Experience in reviewing complex systems design/code for security best practices and compliance with industry standards Fluency in English Excellent written and verbal communication skills with the ability to convey technical information to a wide variety of audiences Strong creative problem-solving abilities and decision-making skills Fluent in Polish required Residing in Poland required Nice to have Experience in creating bootloaders for various hardware architectures Knowledge and experience with cryptography and computer security Strong knowledge of RISC-V architecture and GCC compiler What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: Development of low-level embedded software for a next-generation multi-core SoC, focusing on HAL, drivers, IPC, and power management within Zephyr and FreeRTOS ecosystems. The role involves building BSPs, Devicetree support, and a modern toolchain to enable secure, ultra-low-power IoT applications. Work includes close collaboration with hardware teams on multi-core architecture, memory mapping, and interrupt routing. 🗂️ Requirements: 5+ years embedded software development experience, Strong experience with low-level drivers and HAL, Deep knowledge of ARM Cortex-M architecture, Experience with multi-core resource scheduling, Proficiency in C for RTOS environments, Hands-on experience with Zephyr and FreeRTOS, Experience implementing IPC mechanisms (mailboxes, spinlocks, shared memory), Experience with SPI, QSPI, GPIO, I2C, PWM, ADC interfaces, Experience with FPGA emulation or RTL simulation, Strong knowledge of embedded power management, Ability to perform static code and security analysis, English proficiency for technical documentation 📃 Skills: C, ARM, Cortex-M, Zephyr, FreeRTOS, IPC, SPI, QSPI, GPIO, I2C, PWM, ADC, FPGA, RTL, HAL, BSP, Devicetree, TrustZone, TEE, PSA, CMSIS, CMake, Kconfig 🏢 Description: ABOUT THE PROJECT Join a strategic partnership with a global leader in long-range wireless technology to architect the software ecosystem for a next-generation multi-core System-on-Chip (SoC). This engagement goes beyond standard firmware development; you will co-develop a comprehensive developer platform that transforms complex multi-core hardware into an accessible, world-class microcontroller product. By leveraging open-source real-time operating systems like Zephyr and FreeRTOS, and implementing cutting-edge hardware-enforced security frameworks (PSA Level 3, TrustZone, TEE), you will empower the global embedded community to deploy secure, ultra-low-power IoT applications. You will work within a specialized team structure to deliver a modern toolchain centered around Visual Studio Code, ensuring a seamless “edit-build-debug” experience for the next wave of wireless innovation! YOUR ROLE Develop the Hardware Abstraction Layer (HAL) and low-level C drivers for a next-generation multi-core SOC architecture. Design and implement Inter-Processor Communication (IPC) mailbox drivers to orchestrate data exchange between Application, Protocol, and Radio cores. Implement the system-wide power management state machine, managing clock gating and supply assignments for ultra-low power consumption. Create Board Support Packages (BSPs) and Devicetree definitions to adapt the hardware to Zephyr and FreeRTOS ecosystems. Collaborate with the architecture team to define memory maps and interrupt routing for a complex multi-core system. Working directly with hardware teams. Ensure code compliance with unified code styles and static security analysis requirements. REQUIREMENTS 5+ years of embedded software development experience with a strong focus on low-level drivers and HAL. Deep knowledge of ARM Cortex-M architecture and multi-core resource scheduling. Proficiency in C programming for real-time operating systems, specifically Zephyr and FreeRTOS. Experience implementing Inter-Processor Communication (IPC) mechanisms (mailboxes, spinlocks, shared memory). Familiarity with peripheral interfaces such as SPI, QSPI, GPIO, I2C, PWM, and ADC. Experience working with FPGA emulation platforms or RTL simulation environments for early software bring-up. Solid understanding of embedded power management, including sleep modes and wake-up sources. English language proficiency for technical documentation and cross-functional communication. NICE TO HAVE Experience integrating software with the CMSIS layer. Previous involvement in developing Software Development Kits (SDKs) for public release. Familiarity with CMake/Kconfig build systems. WE OFFER Flexible work schedule; Private healthcare insurance - LuxMed (extended gold package for parents & kids); Multisport card; Workation; Financial bonuses for significant life events (wedding, birth of a child); Compensation of professional training: courses, seminars, trainings (it is decided for each person individually if the whole thing or a part of it will be covered); Author's right (for those who write the code).

🏢 Summary: Role focused on designing and developing scalable microservices for a modern fintech expense management platform integrating payments, cards, and invoicing into partner systems. The position involves leading technical initiatives, optimizing system performance, and ensuring high reliability in a cloud-based distributed environment. You will also mentor engineers and drive technical improvements across the platform. 🗂️ Requirements: Minimum 5 years of professional software development experience, Strong expertise in Kotlin, Experience with distributed systems, Experience with microservices architecture, Experience with cloud environments (AWS, Kubernetes), Proficiency with PostgreSQL or other relational databases, Experience with JUnit and Testcontainers, Experience with observability tools such as Grafana, Very good English (minimum B2), Fluent Polish, Residence in Poland 📃 Skills: Kotlin, AWS, Kubernetes, PostgreSQL, JUnit, Testcontainers, Grafana, Microservices, DistributedSystems, Cloud 🏢 Description: Join a team working on a modern fintech platform that supports company expense management. The project focuses on developing a finance solution that enables seamless integration of financial tools (including payment cards, expense management, and invoice handling) directly into partner systems such as banks, accounting platforms, and HR solutions. The product being developed allows companies to simplify financial processes, automate settlements, and gain full real-time control over their spending. Your tasks Leading initiatives to design, build, and maintain scalable microservices primarily using Kotlin Collaborating with cross-functional teams to develop innovative solutions across Platform, Services, SMB, and other domains Analyzing system performance and implementing optimizations to ensure high reliability and scalability Participating in code reviews, post-mortems, and providing mentorship to other engineers Proactively improving the architecture and quality of solutions, and leading the team through technical challenges and migrations Requirements Minimum 5 years of professional experience in software development Expertise in server-side languages, especially Kotlin, and experience with distributed systems, microservices, and cloud environments (e.g., AWS, Kubernetes) Proficiency with relational databases like PostgreSQL, testing frameworks (e.g., JUnit, Testcontainers), and observability tools like Grafana Strong problem-solving skills and a collaborative mindset to mentor and upskill your teammates Very good knowledge of English - min. B2 level Residing in Poland required Nice-to-have requirements Previous work in the fintech industry or with financial products Knowledge of topics related to payments, cards, or accounting Experience working in a scale-up environment Proficiency in one of the following front-end technologies: React or TypeScript What we offer Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022 Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more Comfortable workplace – class A offices or remote work Dozens of fascinating projects for prestigious brands from all over the world PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers Investment in your growth – meetups, webinars, training platform and technology blog – you choose Fantastic atmosphere created by all Sii Power People If you want to work on systems with high operational significance — apply now!

🏢 Summary: The role focuses on developing embedded software and firmware for advanced industrial automation products used in real-time environments. You will work in a Scrum team to design, implement, test, and deliver embedded solutions, collaborating closely with cross-functional stakeholders. The position is fully remote within Poland and offered on a B2B contract. 🗂️ Requirements: Bachelor’s degree in Electronics, Instrumentation Engineering or related field, Minimum 6 years of experience in embedded software development, Strong programming experience in Embedded C++, Experience with industrial communication protocols (Modbus, Profibus or EtherNet/IP), Experience in designing and maintaining real-time embedded systems, Experience in developing and maintaining automated tests, Knowledge of Ethernet and TCP/IP networking, Ability to work in a Scrum/Agile environment 📃 Skills: C++, Embedded, Firmware, Modbus, Profibus, EtherNet/IP, Ethernet, TCP/IP, Wireshark, Scrum, Agile, Testing 🏢 Description: Join a global technology company that designs and develops advanced solutions for industrial automation and control. The team builds  embedded products used in demanding, real‑time environments all over the world. If you enjoy solving complex technical problems, working with experienced engineers, and growing your skills in embedded software and firmware development, this role is a great fit. You can work from any place in Poland. The start is planned ASAP. Key responsibilities Work in a Scrum team to plan, organize and do the development work, taking part in all team meetings. Take care of your daily tasks with little supervision and handle new tasks based on general directions. Use your skills to help define, design, code, test and deliver embedded software and firmware features. Work with your team to gather needs, design solutions, build, test and deliver the product. Show the most important new features and parts of the product to stakeholders. Work closely with the Product Owner, Scrum Master, Release Train Engineer, Product Manager and others to agree on tools, processes and ways of working. Notice problems that stop the team from finishing work and help to solve them or raise them to the right people. Ideal candidate profile Bachelor’s degree in Electronics or Instrumentation Engineering (or a closely related field). At least 6 years of experience in embedded software or related development roles. Strong programming experience in Embedded C++. Experience with industrial communication protocols such as Modbus, Profibus, or EtherNet/IP. Ability to design, build, and maintain firmware for real‑time and embedded systems. Willingness to work in a self‑organizing Scrum team and contribute to Agile practices. Experience in developing and maintaining automated tests. Good communication skills and the ability to work well in a team. Experience with networking technologies such as Ethernet and TCP/IP, and tools like Wireshark. Conditions Form of cooperation: B2B contract Start: ASAP Salary: 130-150 PLN net/h Model of work: 100% remote from any place in Poland Benefits: private medical care, life insurance, Multisport card Recruitment steps Phone call with Recruiter (20 - 30 min.) Technical verification call by the client Interview with the client Feedback and decision