Power Electronics Engineer II Westminster

Job Description

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 Cesium Astro
, 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, Cesium Astro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward‑thinking individuals to join our team.

We are seeking a Power Electronics Engineer II to join our growing satellite 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—from helping define power system architecture and trade studies to detailed circuit design, simulation, printed circuit board (PCB) layout, box level verification, vehicle integration testing, and manufacturing support.

• Bachelor of Science (BS) degree or higher in Electrical Engineering from an accredited university.
• Minimum of 2 years of experience designing analog and power electronics
• Experience with power stage design of basic DC‑DC power converter topologies (e.g. discrete linear regulators, Buck, Boost, Buck‑boost)
• Knowledge of voltage mode control and peak current mode control theory for DC‑DC converters
• Experience with printed circuit board (PCB) design and software tools such as Altium, OrCAD/Allegro, or PADS/Xpedition
• Hands‑on experience with testing and troubleshooting electronics and power converters using laboratory instruments such as oscilloscopes, spectrum analyzers, electronic loads, and signal generators
• Experience with analysis and simulation tools such as SPICE, LTSPICE, SIMetrix/SIMPLIS, PLECS, Simulink, MATLAB, MathCAD, ANSYS Q3D and SiWave, or Hyper Lynx
• Excellent written and verbal communication skills

• Master of Science or PhD in Electrical Engineering with research focus in power electronics
• Experience running board‑level power integrity simulation using tools such as Ansys SiWave, or Hyper Lynx
• Experience with power magnetics modeling, design and laboratory characterization
• Experience with control loop modeling and laboratory characterization
• Knowledge of power electronics applications utilizing GaN or SiC wide bandgap power semiconductor devices
• Experience with laboratory characterization of power magnetics
• Programming skills to support hardware test and data processing (Python, MATLAB, etc.)

Cesium Astro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills. Full‑time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans.

Cesium Astro is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.

Please note:

Cesium Astro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to Cesium Astro team members not through our approved vendor list or Talent Acquisition will be considered property of Cesium Astro, and we will not be obligated to pay any referral fees.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.