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Senior Power Electronics Engineer II



El Segundo, CA, USA
Posted on Thursday, June 6, 2024
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 looking to add a Senior Power Electronics Engineer II to our team. If you are great at what you do, enjoy working in a startup environment, and are passionate about developing leading-edge power electronics for satellites, spacecraft, and aerospace systems, we would like to hear from you.
At the Senior level, you will be tasked with full-stack power electronics development. You will have the opportunity to start at concept development and progress through detailed design, analysis, layout, build, test, and delivery, doing hands-on work at each phase.
At a small company and a startup, your work will make direct contributions to the success of the business. The work is challenging and impactful, requiring both breadth and depth of technical knowledge. Our products are made for high-reliability space and airborne applications, so designs require high levels of technical rigor while maintaining the agility of a startup environment.
The successful candidate will also present engineering design review materials to our customers and executive team. As such, excellent written and verbal communication skills are required.


  • Own end-to-end design of power electronics circuits and modules, from concept and architecture through schematic, layout, test, and production.
  • Perform detailed and complete schematic design for complex boards, ranging from key components to supporting passives.
  • Perform detailed PCB layout in Altium Designer, sometimes working with a PCB Drafter.
  • Complete analysis such as worst-case circuit analysis, stability analysis, and power integrity analysis.
  • Develop bring-up plans and design verification plans for new circuits and electronics modules.
  • Perform bring-up and key verification testing of power electronics circuits and modules, often working with a technician to complete validation.
  • Release modules to production, working with the Manufacturing and Test Engineering teams.
  • Mentor junior engineers to build technical understanding and professional development.
  • Use working knowledge of adjacent fields, such as digital or RF electronics and mechanical engineering, to streamline development of electronics modules.


  • Bachelor of Science (BS) degree or higher in Electrical Engineering from an accredited university.
  • Minimum of 6 years of industry or university research experience in board-level power electronics design, analysis, and test.
  • Direct experience designing high-reliability electronics for space or defense applications, including part derating, worst-case analysis, and thermal constraints.
  • Experience owning the design phase of circuits or boards, including trade studies, key part selection, and detailed design.
  • Experience delivering subcircuit or board designs to production and deployment.
  • Experience performing or guiding complex PCB layout for power electronics.
  • Experience running board-level power integrity simulation tools such as Ansys SIwave, ADS SIPro, or Mentor Hyperlynx.
  • Working knowledge of adjacent fields, such as mechanical engineering.
  • Proficiency in electronics design tools such as Altium.
  • Strong lab experience for bring-up and verification of new hardware.
  • Excellent written and spoken communication skills.


  • Design for space radiation environments.
CesiumAstro 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 featuring health, dental, vision, HSA, FSA, life and retirement plans.
CesiumAstro, Inc. is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex including sexual orientation and gender identity, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.