Navigation Engineer (Electronic Warfare)
harmattan-ai
Paris · France
Posted Aug 19, 2026
- Full-time
- On-site
- R&D
harmattan-ai
Paris · France
Posted Aug 19, 2026
ABOUT US Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces. Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and execution are expected. ABOUT THE ROLE As a Navigation Engineer within our Electronic Warfare (EW) team, you will design and develop the navigation and positioning solutions that keep our autonomous systems operational in contested and GNSS-denied environments – from concept to field deployment. You will work hand-in-hand with hardware, software, GNC and ML teams to deliver robust, resilient Position, Navigation and Timing (PNT) and to ensure overall performance, robustness and reliability. RESPONSIBILITIES - Navigation Architecture: Drive the architecture and implementation of navigation / PNT solutions for autonomous platforms. - Resilient PNT: Develop navigation resilient to GNSS degradation, jamming and spoofing (anti-jam / anti-spoof). - Sensor Fusion: Design multi-sensor fusion (GNSS, INS/IMU, RF, vision) and the associated estimation and filtering algorithms. - Integration & Validation: Oversee integration, prototyping and field validation against performance targets. - Technical Coordination: Collaborate across HW, software, EW and ML teams on technical interfaces and system-level trade-offs. - System Reviews & Documentation: Contribute to design and architecture reviews and maintain requirements traceability and documentation. CANDIDATE REQUIREMENTS - Strong background in navigation systems (GNSS, INS/IMU) and sensor fusion. - Solid experience with estimation and filtering (e.g. Kalman filtering) and real-time implementation. - Experience with navigation in GNSS-denied / contested environments is a strong plus. - Familiarity with RF and EW constraints (GNSS jamming / spoofing) is a plus. - Solid software / algorithm skills; combined algo + software profile rather than a pure coder. - MSc in Engineering (aerospace, robotics, EE or related); PhD is a plus. - Broad engineering culture with understanding of electrical, embedded and mechanical systems. - Rigorous, structured and mission-driven mindset with strong analytical skills. - Excellent communication and documentation abilities. We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.