Principal Power Electronics Engineer I

El SegundoFull-timelead

EngineeringPower Electronics EngineerElectronics Engineer

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Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident,

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EngineeringPower Electronics EngineerElectronics Engineer

Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.

At CesiumAstro, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.

We are seeking a Principal Power Electronics Engineer I (2025538) to join our growing spacecraft payload development team. In this position, you will contribute across the entire development lifecycle of next-generation power electronics hardware for satellites and space power systems payloads—from leading the definition of power system architectures and trade studies to detailed circuit design, simulation, printed circuit board (PCB) layout, verification and integration testing, production transition, and manufacturing support.

Define electrical power system architecture, and derive power subsystem requirements

Design DC-DC power converters, motor drives, inverters, power management and control circuits from concept to production release

Perform detailed design for low to high complexity analog and power electronics circuits ranging from single DC-DC power converters to multi-output power supply modules

Perform modeling and analysis of analog and power electronics designs including worst-case circuit analysis (WCA), stress analysis, small signal modeling analysis, failure modes and effects analysis (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 for power converters and power supply designs

Lead board bring-up and design verification testing of power electronics circuits and modules

Lead system integration, qualification campaigns, and release of analog and power electronics designs into production

Mentor younger engineers and foster knowledge sharing

Lead a small team of power electronics engineers to drive project execution

Perform research and monitor power electronics industry trends to drive innovation and generate intellectual property in this area

Bachelor of Science (BS) degree or higher in Electrical Engineering (or related) from an accredited university.

Minimum of 9 years of experience designing analog and power electronics

Experience working with electrical power systems and subsystems, including developing power architecture and power requirements, performing trade studies for size, weight, power, and cost optimization (SWAP-C), selecting power converter topologies, and defining power management and control blocks

Experience with modeling and control of DC-DC converters and power stage design of different isolated and non-isolated DC-DC power converters (e.g. discrete linear regulators, Buck, Boost, Buck-boost, Flyback, Forward, Half-bridge, Full bridge, and Resonant converters)

Experience designing custom signal and power magnetics, and power filters for low noise and electromagnetic compatibility (EMC)

Experience developing design verification test plans, requirement compliance matrices, system integration and qualification test plans, and production acceptance test plans

Experience performing worst-case circuit analysis (WCA), stress analysis, failure modes and effects analysis (FMEA), and reliability analysis for power supplies

Extensive hands-on experience with testing and troubleshooting electronics and power converters using laboratory instruments such as oscilloscopes, impedance analyzers, spectrum analyzers, electronic loads, and signal generators

Experience with electronics schematic capture and printed circuit board (PCB) layout tools such as Altium, OrCAD, Allegro or Xpedition

Experience with analysis and simulation tools such as SPICE, LTSPICE, SIMetrix/SIMPLIS, PLECS, Simulink, MATLAB, MathCAD, ANSYS Q3D and SiWave, or HyperLynx

Excellent written and verbal communication skills

Master of Science or PhD in Electrical Engineering with research focus in power electronics

Experience designing high-reliability analog and power electronics for automotive, space or defense applications

Knowledge of space radiation environments and radiation effects in electronics

Experience in power electronics applications utilizing GaN or SiC wide bandgap power semiconductor devices

Experience running board-level power integrity simulation using tools such as Ansys SiWave, or HyperLynx

Experience with soft switching and resonant power converter topologies (e.g. LLC, CLLC, series resonant, phase shifted full bridge, dual active bridge, etc.)

Experience with power stage design for inverters and motor drives

Knowledge of modeling and control of inverters and motor drives

Experience with advanced control schemes for DC-DC power converters (e.g. voltage mode with feedforward control, 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 and fault tolerant design, and thermal management of power electronics

Programming skills to support hardware test and data processing (Python, MATLAB, etc.)

Knowledge of maximum power point tracking (MPPT) for solar power applications, battery sizing and battery management systems, power conversion for electric propulsion systems, power conditioning, power management, and power distribution units for spacecraft technology

Experience designing and testing power electronics units to meet industry standards and requirements in the automotive, industrial, space or military markets (e.g., FCC, CISPR, UL safety, ECSS, NASA, MIL standards)