Senior Power Electronics Engineer

Job overview

The Senior Power Electronics Engineer role is onsite in Torrance, CA; compensation is not specified. Castelion develops advanced defense systems and long-endurance hypersonic strike vehicles. The engineer designs, integrates, tests, and validates electrical power systems for mission-critical vehicle avionics and subsystems. The work supports reliable power generation, storage, and distribution across flight missions.

What you'll do

• Design power electronics, battery architectures, power conversion, and distribution systems
• optimize power controllers and management systems
• analyze battery selection, packaging, thermal considerations, and safety
• integrate power systems with avionics, guidance, navigation, control, and flight software
• model and simulate circuit- and system-level performance
• support hardware bring-up, integration, testing, and troubleshooting
• define qualification and flight-test plans
• mentor junior engineers and contribute to design practices.

What we're looking for

Skills & competencies

senior power electronics engineer

power electronics

battery systems

power conversion

avionics

aerospace

defense systems

hardware testing

torrance ca

castelion corporation

u.s. citizenship required

Work arrangement

• Weekend coverage required

Benefits & perks

• Long-term equity
• four weeks of paid time off
• ten company-paid holidays
• medical, dental, and vision coverage
• paid parental leave
• $100 monthly fitness stipend
• onsite EV charging
• catered meals and stocked kitchen.

Why this role

Requires 5+ years of power-electronics design, analysis, and validation experience in aerospace, defense, or other high-reliability systems; U.S. citizenship and ability to obtain and maintain a security clearance are required.

About the employer

Castelion Corporation is hiring for this role. Industry: Guided Missile and Space Vehicle Manufacturing. Sector: 33.