Why us? POLARIS Raumflugzeuge GmbH develops innovative transportation systems that redefine access to space for payloads and passengers. With now 70 dedicated colleagues, we are working at two locations to make our vision reality. We are continuing to expand our team and are looking to fill the position of Embedded Avionics Developer (m/f/d). Your mission We are seeking an Embedded Avionics Developer skilled in real‑time embedded systems, sensor drivers, and safety‑critical software for aviation platforms. Develop embedded avionics software and sensor drivers (I²C, SPI, UART, CAN, Ethernet) in C/C++ on NuttX, Linux, and RTOS platforms Work with microprocessors, microcontrollers, SoCs; FPGA experience is a plus Integrate and optimize PX4 modules, including middleware and driver frameworks Implement interfaces for IMUs, magnetometers, barometers, GNSS, air data sensors, and other avionics peripherals Apply SIL concepts and support functional safety activities (requirements, verification, HARA) Ensure compliance with DO 178C, DO 254, and aviation regulatory standards Participate in SIL/HIL testing, including sensor in the loop validation Produce documentation: ICDs, safety cases, release notes, user manuals Use GitHub/GitLab for version control, CI/CD, and code reviews System/software architecture using Enterprise Architect (EA) (UML/SysML) Your profile Bachelor’s/Master’s in Electrical, Computer, Aerospace, or Embedded Engineering 5 years in embedded or avionics software development Strong in C/C++, real time systems, and low level driver development Experience with NuttX, Linux, PX4, and embedded debugging tools Knowledge of DO 178C, DO 254, ISO 26262, and SIL processes Familiarity with avionics communication standards (ARINC 429/664/AFDX, CAN Aerospace) is a plus Experience with DOORS/Polarion, EA/UML/SysML, and scripting (Python/PowerShell) Strong communication skills; proactive and comfortable in cross functional teams Familiarity with flight simulation environments and navigation systems Scripting (Python/PowerShell) for automation Strong communication skills and ability to work in cross functional, global teams Proactive, flexible, and motivated mindset; start up experience is a plus What we offer Long-term prospects with a permanent employment contract Being part of an international, highly motivated team Flat hierarchies and short decision-making processes Flexible working hours Use of our company fitness program with EGYM Wellpass The opportunity to contribute your ideas and actively shape the company Join us in shaping the future of space transportation and making a positive impact. If your profile fits our requirements, apply now by sending your complete application portfolio, including CV, certificates and a cover letter outlining your relevant experience and why you are the ideal candidate for this role. About us At POLARIS we value on-site collaboration, so we generally do not offer home office. Please apply only if you feel comfortable with this working model – it saves valuable time for everyone involved.