(Senior) GNC Engineer - Navigation, Flight Software (m/f/d)

Mission Brief As a GNC Engineer at Isar Aerospace SE, you develop the guidance , navigation, and control systems that enable Spectrum to operate safely, accurately, and efficiently throughout its mission. You design, verify, and validate flight algorithms that determine the vehicle’s position, velocity, and attitude while steering it along its optimal trajectory during all phases of flight. By combining flight dynamics, state estimation, control theory, and high-fidelity simulation, you ensure robust performance in the presence of uncertainties and disturbances. Your work is essential to maximizing mission success, payload capability, and the reliability of every Spectrum launch. Your Role in Our Space Mission: Architect the next generation navigation system for an orbital launch vehicle Perform Navigation algorithm tuning and improvements based on flight data Responsible for ground and flight integrity monitoring for safety critical navigation systems Ownership of all GNSS applications on the vehicle Perform GNSS Integrity studies Qualification Checklist BSc/MSc/PhD in Mechanical, Aerospace, Electrical or Robotics Engineering, Physics, Mathematics or similar Proficient in inertial navigation algorithms and Kalman filter techniques 3+ years of experience with GNSS receiver configurations and testing (GNSS simulator test setups) Strong understanding of integrity monitoring and jamming and spoofing resilience Experience with performing GNSS integrity studies and analysis Experience in developing with MATLAB Experience in developing with Python and C++ Proficient with Git Maintain and drive a high standard of technical documentation Fluent in English Bonus Skills Experience with RTK and PPK Strong understanding of discrete signal processing techniques Benefits Employee Participation Program: Share in our success through our virtual company share program 30 days of vacation: Enjoy the days off to relax and recharge Company pension plan: Secure your future with our company pension plan, featuring a 20% employer contribution after the probation period Subsidised lunch: Stay energised with delicious, subsidised lunches every day Rental clothing with laundry service: Enjoy hassle-free workwear with our convenient rental clothing and laundry service Sport Clubs membership: Stay fit with our sponsored sports club memberships (EGYM Wellpass) Individual learning allowance: Grow your skills with an individual learning budget granted after the probation period Childcare allowance: Receive a childcare allowance for your non-school-age children Flexible mobility budget : Travel your way with a choice between a fully financed Deutschlandticket, JobRad bicycle leasing, FINN JobAuto, or a fuel allowance And Much More! Discover additional perks and benefits when you join our team Who we are We are Isar Aerospace and we are at the forefront of New Space building a modern space business to enable faster, better and cheaper access to space. Our mission is to help democratise space and use it for good in order to improve life on Earth now and for the future generations. We are a fast-growing company aiming to provide sustainable and environmentally friendly launch solutions for small and medium-sized satellites and constellations into Low Earth Orbit. The company is privately funded by world-leading technology investors with strong commitment and support and our team is made of driven and talented people with a real passion for space innovation. We're making rockets in a way that hasn't been done before disrupting a traditional industry. If you are up for the challenge, want to work on cutting-edge projects and be part of a team changing the world for better, come, join us and launch your career! Want to find out more about us? Visit www.isaraerospace.com Data Protection We process your personal data for the purpose of managing the recruitment process and assessing your application. For detailed information on how your data is processed, including your rights, please refer to our Privacy Policy . Disclaimer Isar Aerospace SE is an equal-opportunity employer committed to fairness and inclusivity. We do not prioritize any specific religion, gender, nationality, or background. Due to security clearance requirements, affiliations with countries listed under § 13 para. 1 no. 17 SÜG may affect the application process. All qualified applicants are encouraged to apply.