
Lead Avionics Engineer
Required skills
- hypersonic strike vehicles
- avionics architecture
- flight system integration
- embedded computing
- flight software
- flight computers
- control electronics
- RF systems
- flight termination systems
- propulsion electronics
Nice to have
- Altium Designer
- SPI
- I²C
- UART
- CAN
- Ethernet
Role summary
Castelion is seeking a Lead Avionics Engineer to architect and integrate avionics systems for long-range hypersonic strike vehicles. This role involves hands-on work with multidisciplinary teams to define system architecture, lead subsystem integration, develop requirements, and ensure seamless operation of flight electronics from concept through flight testing. Responsibilities include hardware integration, debugging, troubleshooting, defining electrical standards, supporting design reviews, and mentoring engineers. The ideal candidate will have 8+ years of experience in high-reliability embedded electronic systems for aerospace/defense, a strong background in avionics architecture, and experience with schematic capture and PCB design tools.
Why Castelion, Why Now
Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus, ownership, and excellence are decisive advantages - and we're building a world-class team to turn bold ideas into real capability.
This is a rare opportunity to join at an early stage, where you'll have significant ownership, collaborate with exceptional teammates, and make a direct, measurable impact on our mission and the future of the company - regardless of your function.
Lead Avionics Engineer
We are seeking a Lead Avionics 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
Basic Qualifications
Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details.
Other Duties
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.
Additional Eligibility Requirements
This position may require access to classified information or restricted U.S. Government sites, systems, or information, as determined by the Company and/or applicable U.S. Government requirements. If the position is so designated, your employment in the role may be contingent upon your ability to obtain and maintain the required U.S. Government security clearance or other government authorization, and to satisfy any citizenship or other eligibility requirements imposed by applicable law, regulation, executive order, or government contract requirements. You will be notified if and when such requirements apply.
Affirmative Action/EEO Statement
Castelion is an Equal Opportunity Employer. We are committed to providing equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable federal, state, or local law.
Castelion is committed to providing reasonable accommodations to qualified individuals with disabilities throughout the application and hiring process. If you require a reasonable accommodation to complete an application, participate in the interview process, or otherwise participate in the hiring process, please contact hr@castelion.com. Requests for accommodation will be considered on an individual basis and handled in accordance with applicable law.
Castelion is committed to fostering a workplace where employment decisions are based on qualifications, business needs, and the ability to perform the essential functions of the role, with or without reasonable accommodation.
EAR/ITAR Requirements
This position requires access to export-controlled information, and as such, employment (or hiring of a contractor) is contingent upon the candidate’s ability to access all applicable export-controlled information without additional export licensing being required by the Bureau of Industry and Security and/or the Directorate of Defense Trade Controls.
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