Senior Power Electronics Engineer, Aerospace Flight Power

Castelion Corporation; Torrance (CA); Hybrid; USD 140,000 - 190,000; Full time

Job summary

Castelion is seeking a Senior Power Electronics Engineer to develop and integrate advanced electrical power systems for Castelion's long-range hypersonic strike vehicles. This role is critical for reliable power generation, storage, and distribution across avionics and vehicle subsystems.

You will work hands-on with multidisciplinary teams to design, analyze, test, and validate power electronics hardware in a fast-paced, hardware-rich environment.

Qualifications

• Bachelor's, Master's, or PhD in Electrical Engineering or related field.
• 5+ years of experience in power electronics design, analysis, and validation for aerospace, defense, or other high‑reliability systems.
• Strong background in battery systems, power conversion (DC‑DC), and power distribution architectures.
• Experience designing power controllers and power management systems for embedded or avionics applications.

Responsibilities

• Design and develop power electronics systems including battery architectures, power conversion, and distribution for high-performance flight vehicles
• Lead the design and optimization of power controllers and power management systems to ensure stable, efficient operation across all mission phases
• Develop and analyze battery systems, including selection, packaging, thermal considerations, and safety mechanisms for demanding environments
• Work closely with avionics, GNC, and flight software teams to ensure seamless integration of power systems with vehicle subsystems
• Conduct circuit‑level and system‑level modeling and simulation to evaluate performance, efficiency, and reliability under dynamic conditions
• Support hardware bring‑up, integration, and test campaigns, including troubleshooting and root cause analysis
• Define and execute qualification and flight test plans, translating results into system‑level improvements
• Mentor junior engineers and contribute to best practices in power electronics design
• Partner closely with program leadership to make technical trades aligned with mission success

Skills

Power electronics design

Aerospace experience

Battery systems

DC-DC converters

Embedded/avionics

Circuit simulation

Education

Bachelor's/Master's/PhD in Electrical Engineering

Tools

SPICE

MATLAB/Simulink

Job description

Castelion is seeking a Senior Power Electronics Engineer to develop and integrate advanced electrical power systems for Castelion's long-range hypersonic strike vehicles. This role is critical for reliable power generation, storage, and distribution across avionics and vehicle subsystems.

You will work hands-on with multidisciplinary teams to design, analyze, test, and validate power electronics hardware in a fast-paced, hardware-rich environment.