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GNC Software Engineer (Mid-Level to Senior)

Astro Mechanica - San Francisco, CA, USA - In-office - posted 2026-09-09

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Astro Mechanica is a vertically integrated aerospace company developing advanced supersonic aircraft and propulsion systems. The company is building guidance, navigation, and control (GNC) systems for clean-sheet autonomous aircraft, integrating proprietary dual-use propulsion technology with innovative flight operations models. As a GNC Software Engineer, you will own the guidance and control systems for autonomous aircraft development. You'll work from first principles, writing both simulation and flight-critical code while collaborating closely with hardware and software teams to achieve real-world flight performance. Key responsibilities include: - Developing and implementing GNC systems for aerospace products - Building and maintaining 6-DOF dynamics and simulation models for control design, analysis, and validation - Participating in multi-disciplinary aircraft trades and system architecture definition - Creating tooling to automate control design, Monte Carlo analysis, and simulation validation - Supporting flight and ground test operations - Conducting post-flight/test reviews and correlating actual performance with predictions for continuous improvement You should have a Master's degree or PhD in aerospace engineering, software engineering, robotics, electrical engineering, or a related discipline. Professional experience in GNC development for aerospace or autonomous vehicle programs is required, along with strong flight dynamics, modeling, and simulation expertise. Proficiency in systems languages (Rust, C++, or equivalent) plus Python for analysis and tooling is essential. You should be comfortable with modern software development practices including version control, code review, testing, and CI/CD pipelines. The company operates with a flat structure emphasizing engineering excellence and pragmatism. The role requires in-office presence five days per week to foster collaboration and maintain company culture. This is an opportunity to work on cutting-edge aerospace technology with direct impact on flight-critical systems.

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