Principal Electrical Engineer - CDH

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 looking to add a Principal Electrical Engineer  I to our Internal Missions team. If you are great at what you do, enjoy working in a startup environment, and are passionate about developing electrical systems for leading‑edge communications satellites, we would like to hear from you.

In this position, you will be responsible for spacecraft electronics and hardware through all stages of the development process for space systems. Your responsibilities will include serial communications and Ethernet networking, EMI mitigation, wiring, and electrical and data interfaces between all spacecraft subsystems. The ideal candidate will be an electrical systems generalist motivated to deliver every aspect of the spacecraft electrical design, including test and production.

As a Satellite team member, you will work on a small team to develop satellites and put them in orbit. You will be responsible for electrical concepts, roadmaps, architecture trade studies, block diagrams, electrical hardware design, manufacturing, test, qualification, and in‑orbit support. You will provide creative solutions to complex problems to push the boundaries of spacecraft design.

Your work will have a direct impact on the success of the company. You will work closely with the engineering team, program management to ensure the successful build and launch of our satellite. Element will be the largest, most powerful rideshare satellite in LEO. We’re launching eight of them in the next four years, starting with our first launch this year.

Together, our small team will design, build, and iterate to reduce mass and cost while increasing performance, reliability, and manufacturability of a new generation of satellites. Let’s build!

• Direct technical definition, implementation, and verification of satellite avionics systems
• Interface between the technical team and systems engineering
• Define and maintain subsystem architecture and interfaces
• Conduct make/buy trades
• Architect and design in‑house solutions
• Make effective decisions given limited input and analysis while driving the team to produce and iterate hardware
• Prepare and deliver technical communications to company leadership and executives
• Deliver reliable, performant space avionics system for spaceflight missions

• Bachelor of Science (BS) degree in Electrical or Computer Engineering from an accredited university
• Minimum of 9 years of industry experience in spacecraft electrical system design, analysis, manufacturing, test, and troubleshooting. A Master’s degree may count as two years of experience
• Strong understanding of electronics and electrical engineering fundamentals
• Understanding of the subsystems required in a spacecraft electrical system including processors, digital I/O, timing signals, power rails, and grounding
• Experience with successful rapid prototype, iteration, and flight delivery cycles
• Proficiency in electrical system design and analysis, including electrical ICD definition, requirement derivation, digital I/O standards, power interfaces, connectors, and cabling
• Hands‑on experience with lab instruments such as oscilloscopes, spectrum analyzers, electronic loads, and signal generators to debug, test, and validate high‑reliability…