Senior Power Electronics Hardware Engineer

Relativity Space•Long Beach, CA

About The Position

Relativity Space is building rockets to serve today’s needs and tomorrow’s breakthroughs. The Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known. Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Engineers solve problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Collaboration across teams, shaping decisions, and seeing work come to life in record time are key aspects of the role. Creativity and technical rigor go hand in hand, and individual voices help define the stories being written together. This is a unique moment in time to leave a mark on the product, the process, and the culture, with Terran R tangible and gaining momentum. The most meaningful work of a career is waiting. The Avionics team is responsible for the full lifecycle of Terran R’s nervous system, designing, building, testing, installing, and operating the hardware that connects and controls every major electrical system on the vehicle and ground. The team leverages close partnership between avionics design, manufacturing, and test to enable rapid iteration and feedback loops. Engineers are deeply embedded into other functions within Relativity, working closely with propulsion, GNC, fluids, and stage engineering teams to ensure seamless integration and operation. This role offers the opportunity to shape Terran R's fundamental avionics architecture and be given a high degree of ownership on components that will fly. As an electrical hardware engineer on the Avionics team, you will design, test, and analyze custom electronics on the Terran R launch vehicle. You will oversee hardware development through the entire product lifecycle from concept to flight maturity to include initial design, board bring-up, design verification, qualification, initial flight production, integration, and vehicle operations. You will work with cross-functional partner teams across the company to help the team make the best possible decisions for the overall vehicle. A strong candidate for the role will have a deep technical background in electronics design and sound project management skills to ensure the hardware project is both reliable and on-schedule to support Terran R's launch!

Requirements

Bachelors degree in Electrical Engineering, Computer Engineering, or a related field
5+ years of experience in electronics designed for harsh environments and mission-critical applications such as launch vehicles, spacecraft, aircraft, or robotics
Familiarity with eCAD software such as Altium or equivalent
Experience with hardware bring-up, validation, debugging, and data analysis
Experience with board-level design from concept to manufacturing
Experience working with highly cross-functional teams (mechanical, thermal, electrical, software, etc.) to develop integrated electronics solutions

Nice To Haves

Familiarity with embedded software development and integration for avionics systems
Experience with design for reliability and manufacturability of avionics hardware and systems
Technical expertise in motor drives and control, DC-DC converters, load switches, high voltage DC electronics

Responsibilities

Design, test, and analyze custom electronics on the Terran R launch vehicle.
Oversee hardware development through the entire product lifecycle from concept to flight maturity.
Manage initial design, board bring-up, design verification, qualification, initial flight production, integration, and vehicle operations.
Collaborate with cross-functional partner teams across the company to make informed decisions for the overall vehicle.
Ensure hardware projects are reliable and on-schedule.