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Lead RF Engineer - Electronic Warfare

Harmattan Ai - Paris, Île-de-France, France - In-office - posted 2026-10-15

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Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following a $200M Series B valuation at $1.4 billion, the company is expanding teams to deliver mission-critical systems to allied forces. As Lead RF Engineer - Electronic Warfare, you will own the end-to-end delivery of electronic warfare and signal intelligence systems from concept through field deployment. You will translate mission needs into system-level designs, coordinate multidisciplinary engineering teams, and ensure overall system performance, robustness, and reliability. Your responsibilities include: - Building, maintaining, and managing a cross-disciplinary Electronic Warfare Engineering Team - Driving architecture and implementation of Electronic Warfare Systems with state-of-the-art knowledge in EW/SIGINT - Leading cross-functional design coordination across mechanical, electrical, software, GNC, and ML teams - Conducting feasibility studies, trade-off analyses, and system-level simulations to guide technical choices - Overseeing system integration, prototyping, and validation to ensure performance targets are achieved - Driving design and architecture reviews to maintain consistency between requirements, design, and testing - Implementing processes to enhance requirements traceability, system documentation, and validation workflows You will work hand-in-hand with project managers and technical leads in a demanding environment where rigor, ownership, and execution are expected. REQUIREMENTS: - 10+ years of experience in RF system engineering (Radio/Radar/GNSS and other sensors) within robotics, aerospace, or defense sectors - Experience in technology leadership in EW/SIGINT (strong plus) - Experience in team leadership (bonus, not required) - MSc in Engineering; PhD is a plus - Proven experience leading full system lifecycles (concept → prototype → validation) - Strong background in RF, GNSS, and Radar system architecture, requirements engineering, and system-level trade-off analysis - RF Signal Intelligence gathering and analysis for classification and AI training - Broad engineering culture with understanding of mechanical, electrical, and embedded systems - Experience coordinating multi-disciplinary teams and managing technical interfaces - Rigorous, structured, and mission-driven mindset with strong analytical skills - Excellent communication and documentation abilities

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