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June 26, 2026
Senior Software Engineer, Embedded Systems
Senior • Hybrid
180,000 - 279,996 USD
Byron, CA
Elroy builds autonomous aerospace systems for real-world operations. At the heart of those systems is a hard real-time, safety-critical software stack that must operate reliably under all conditions. The embedded software team develops the code that flies the aircraft in any environment, spanning the full embedded stack from bare-metal firmware and RTOS integration to hardware bring-up and bench debugging.
The Role
As a Senior Embedded Software Engineer, you will own software running directly on safety-critical avionics hardware, including main flight computers. You will work across firmware, real-time systems, and hardware bring-up, contributing end-to-end in a highly cross-functional engineering environment.
What You'll Work On
- Embedded firmware for microcontrollers and SoCs in bare-metal and/or RTOS environments (FreeRTOS, Zephyr, or similar)
- Driver development, peripheral integration, and board bring-up for custom hardware platforms
- Real-time control loops and sensor fusion pipelines with strict timing and determinism requirements
- Hardware debugging using oscilloscopes, logic analyzers, JTAG, and schematics
- C++ and Python tooling for testing, scripting, and automation around embedded targets
- Development of models and emulators for aircraft components to represent hardware behavior in a cloud simulation framework
What We're Looking For
- 5+ years of professional embedded software development experience with production firmware shipped on real hardware
- Deep fluency in C and/or C++; Python for scripting and test tooling
- Hands-on experience with at least one RTOS and bare-metal development
- Ability to read schematics and debug hardware/software integration issues at the signal level
- Experience with communication protocols: SPI, I2C, UART, CAN, Ethernet
- Strong focus on code quality, testability, and field reliability
It’s a Bonus If You Have
- Experience in aerospace, defense, robotics, or other safety-critical domains
- Familiarity with DO-178, MISRA, or other embedded software standards
- Exposure to desktop tooling or visualization for hardware debug and test workflows
- Experience with CI/CD pipelines for embedded targets (HIL, SIL, emulation)
Our Stack
- Primary languages: C++ and Python
- RTOS: FreeRTOS and bare-metal depending on target
- Toolchains: GCC/Clang cross-compilers, CMake, custom build infrastructure
- Version control and CI: Git, GitHub, cloud-based batch simulation and test runners
- Modern AI coding tools used as productivity accelerators
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Remote
Warsaw, Poland
🏢 Summary: The role involves designing and developing embedded systems for IoT-driven solutions with cloud connectivity and modern communication technologies. The engineer will work on real devices, implementing, debugging, and maintaining embedded software while collaborating with a technical team. The position focuses on delivering high-quality, production-ready embedded and connected solutions. 🗂️ Requirements: 4+ years of experience with C, Experience with cloud connectivity and FOTA solutions, Strong knowledge of LTE, BLE, OpenThread, MQTT, Experience with cybersecurity in embedded systems, Practical experience with Yocto Linux, Hands-on debugging on real devices using J-Link or ST-Link, Experience troubleshooting system-level issues, Upper-Intermediate English level 📃 Skills: C, LTE, BLE, OpenThread, MQTT, Yocto, Linux, FOTA, J-Link, ST-Link, Docker, GitLab, Jira, Cybersecurity 🏢 Description: We are looking for a skilled Embedded Engineer to join our growing team and support customers in delivering IoT-driven solutions. As our Embedded department continues to expand, we are seeking professionals with strong analytical thinking and solid technical expertise. In this role, you will collaborate with a team of experienced Embedded Engineers to design and implement high-quality solutions that address real-world challenges. This role suggests working with embedded systems, cloud connectivity, and modern communication technologies. If you’re a motivated Embedded Developer ready to take the next step in your career, we would be excited to collaborate with you! Requirements 4+ years of experience with C Experience with cloud connectivity applications, including monitoring and Firmware-Over-the-Air (FOTA) solutions Strong background in communication technologies such as LTE, BLE, OpenThread, MQTT, and cybersecurity Practical experience with Yocto Linux Experience in debugging and troubleshooting embedded systems, including software debugging on real devices (using J-Link, ST-Link) and resolving system-level issues Upper-Intermediate level of English Would be a plus Hardware knowledge Experience with Docker, GitLab, and Jira Responsibilities Design separate components, modules, classes, and devices Code, debug, document, and maintain portions of software and hardware Perform different types of testing Participate in estimation and planning sessions Contribute to the development of technical project documentation and user documentation Provide assistance to test engineers and support personnel in solving technical issues of software installation and its operation Participate in conference calls and face-to-face meetings with the Customer and Customer partners Comply with the best engineering practices, technical standards, and quality criteria set forth on the project Report status and progress according to the project and company demands Spot current deficiencies in the development process, adopted procedures, and engineering practices, environment configurations, etc., and suggest improvements Escalate technical issues to the Architect, Team Lead, and Project Manager
