Senior Avionics Systems Engineer

About the role

We are seeking a Senior Avionics Systems Engineer to define and deliver the avionics architecture for Castelion's long-range hypersonic strike vehicles. This role is responsible for the overall integration of the vehicle's avionics systems, ensuring that power, control electronics, communications, sensors, embedded computing, and flight software function as a cohesive flight system. You will work hands-on with multidisciplinary engineering teams to architect, integrate, test, and validate flight electronics from concept through flight test in a fast-paced, hardware-driven environment.

Responsibilities

• Define and maintain the avionics system architecture for flight vehicles, including power distribution, communications, grounding, interfaces, and system integration
• Lead the integration of avionics subsystems, including flight computers, sensors, power electronics, control electronics, RF systems, flight termination systems, and propulsion electronics
• Develop system-level requirements, interface definitions, wiring architectures, and integration documentation
• Work closely with electrical, mechanical, software, GNC, propulsion, and manufacturing teams to ensure seamless integration of vehicle subsystems
• Lead system-level hardware integration, bring-up, debugging, and troubleshooting during development and flight vehicle assembly
• Define electrical design standards, component selection guidelines, and best practices for high-reliability flight electronics
• Support design reviews and make system-level technical trades to optimize performance, reliability, manufacturability, and testability
• Develop and execute integration, qualification, and flight test plans, translating results into system-level improvements
• Mentor electrical engineers across multiple