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 Avionics Diagnostics Engineer (m/f/d).

In this role you will develop real time software, build fault injection frameworks, and validate systems through SIL/HIL environments, ensuring compliance with international certification standards.

Your mission

• Develop and integrate diagnostics architecture (monitoring, fault reporting, self diagnostics) 
• Implement real time C/C++ code on RTOS for diagnostics and maintenance algorithms 
• Design data logging mechanisms and communication interfaces (Ethernet, TCP/IP, CAN, AFDX) 
• Build and execute fault injection frameworks to validate diagnostic coverage 
• Prepare and manage SIL/HIL test environments; plan and execute diagnostic test activities 
• Ensure compliance with DO 178C, DO 254, ICAO/FAA/EASA standards 
• Produce clear documentation: requirements, test plans, release notes, user manuals

Your profile

• Bachelor’s or Master’s in Electrical, Computer, or Aerospace Engineering (or related field) 
• 5+ years in avionics/embedded software; 2+ years in diagnostics, fault injection, or health monitoring 
• Strong C/C++ programming and RTOS experience (VxWorks, INTEGRITY, QNX, FreeRTOS) 
• Hands on with MPUs/MCUs/SoCs; FPGA experience is a plus
• Proficiency with debugging tools and embedded development environments
• Experience with requirements engineering tools such as DOORS and Polarion
• Experience with system/software design and modeling tools such as Enterprise Architect (EA) and UML
• Knowledge of unit-testing frameworks, CI/CD pipelines, and SIL/HIL testing
• 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

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

The German aerospace start-up POLARIS Raumflugzeuge GmbH is developing a revolutionary reusable space launch and hypersonic transport system that operates like an aircraft. 

Based on more than 30 years of German and European spaceplane research, the development of the spaceplane AURORA began at the German Aerospace Center DLR. Aurora combines aircraft and rocket launcher technologies with a unique vehicle design, and offers a game-changing economic viability as well as opening the door for routine low-cost and safe access to space. 

In order to validate the technology and accelerate the spaceplane development, POLARIS has been developing a series of scaled flight demonstrators.