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CesiumAstro is seeking a Senior Power Electronics Engineer to join the spacecraft payload development team. This role spans the complete development lifecycle of next-generation power electronics hardware for satellites and space power systems—from architecture definition and trade studies through detailed circuit design, simulation, PCB layout, verification testing, production transition, and manufacturing support.
Key responsibilities include:
- Define electrical power system architecture and derive power subsystem requirements
- Design DC-DC power converters, power conditioning, power management, and control circuits from concept to production release
- Perform detailed design of analog and power electronics circuits ranging from single converters to multi-output power supply modules
- Conduct modeling and analysis including worst-case circuit analysis, stress analysis, small signal modeling, FMEA, reliability analysis, and power integrity analysis
- Develop design verification test plans, requirement compliance matrices, system integration and qualification test plans, and production acceptance test plans
- Lead board bring-up and design verification testing of power electronics circuits and modules
- Lead system integration, qualification campaigns, and production release of analog and power electronics designs
- Mentor younger engineers and foster knowledge sharing
- Research and monitor power electronics industry trends to drive innovation and generate intellectual property
CesiumAstro develops communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. The company emphasizes a dynamic, cross-functional work environment with hands-on, interactive, and autonomous work.
Note: Applicant must be a U.S. citizen, lawful permanent resident, conditional resident, asylee, or refugee, or eligible to obtain required authorizations from the U.S. Department of State to comply with U.S. Government Space Technology Export Regulations.
REQUIREMENTS:
- Bachelor of Science degree or higher in Electrical Engineering (or related field) from an accredited university
- Minimum 5 years of experience designing analog and power electronics
- Experience with electrical power systems and subsystems, including power architecture development, power requirements definition, SWAP-C trade studies, power converter topology selection, and power management/control block definition
- Experience with power stage design of common DC-DC power converter topologies (discrete linear regulators, Buck, Boost, Buck-boost, Flyback, Forward)
- Experience with advanced control schemes for DC-DC power converters (voltage mode with feedforward, constant on-time control, V2 constant on-time control, phase shift modulation, average current mode control)
- Experience with isolation and grounding, failure mode effects analysis, fault tolerant design, and thermal management of power electronics
- Programming skills to support hardware test and data processing (Python, MATLAB, etc.)
