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

Isar Aerospace - Parsdorf, Bavaria, Germany - In-office - posted 2026-10-07

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Isar Aerospace is seeking a Senior GNC (Guidance, Navigation, and Control) Engineer to develop the navigation and flight software systems for Spectrum, their orbital launch vehicle. You will architect next-generation navigation systems, design and validate flight algorithms that determine the vehicle's position, velocity, and attitude, and ensure robust performance throughout all mission phases. Key responsibilities include: - Architect the next-generation navigation system for an orbital launch vehicle - Perform navigation algorithm tuning and improvements based on flight data - Manage ground and flight integrity monitoring for safety-critical navigation systems - Own all GNSS (Global Navigation Satellite System) applications on the vehicle - Perform GNSS integrity studies and analysis - Combine flight dynamics, state estimation, control theory, and high-fidelity simulation to ensure mission success and payload capability You will work on safety-critical systems where your technical decisions directly impact launch reliability and mission outcomes. The role involves both algorithm development and hands-on testing, with emphasis on robustness against uncertainties, disturbances, jamming, and spoofing. Isar Aerospace is a fast-growing New Space company backed by leading technology investors, focused on providing sustainable and cost-effective launch solutions for small and medium-sized satellites into Low Earth Orbit. Requirements: - BSc/MSc/PhD in Mechanical Engineering, Aerospace Engineering, Electrical Engineering, Robotics Engineering, Physics, Mathematics, or similar discipline - Proficient in inertial navigation algorithms and Kalman filter techniques - 3+ years of experience with GNSS receiver configurations and testing (including GNSS simulator test setups) - Strong understanding of integrity monitoring and jamming/spoofing resilience - Experience performing GNSS integrity studies and analysis - Proficiency with MATLAB, Python, and C++ - Proficient with Git version control - Ability to maintain and drive high standards of technical documentation - Fluent in English Bonus skills: Experience with RTK (Real-Time Kinematic) and PPK (Post-Processing Kinematic) positioning; strong understanding of discrete signal processing techniques.

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