Senior Hardware Engineer, Mixed Signal

Relativity Space; Long Beach (CA); On-site; USD 90,000 - 130,000; Full time

Job summary

Relativity Space is looking for a Mixed-Signal Hardware Engineer to join our Avionics team in Long Beach, California. In this role, you will be responsible for designing, testing, and analyzing custom electronics for the Terran R launch vehicle, guiding hardware development from concept to flight readiness. The ideal candidate will have a Bachelor’s in Electrical Engineering, 5+ years of relevant experience, and strong skills in project management and electronics design. Join Relativity to make a significant impact in aerospace innovation.

Qualifications

• 5+ years of experience in electronics for mission-critical applications.
• Technical expertise in ADCs, DACs, and amplifier circuits.
• Experience with board-level design and hardware bring-up.

Responsibilities

• Design, test, and analyze custom electronics for Terran R.
• Oversee hardware development from concept to flight maturity.
• Collaborate with cross-functional teams to support launch.

Skills

Electronics design in harsh environments

Project management

Signal conditioning

Cross-functional teamwork

Education

Bachelor’s degree in Electrical Engineering

Tools

eCAD software (Altium)

Job description

At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. 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. Here, you’re not just executing tasks; you’re solving problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we’re writing together. Now is a unique moment in time where it’s early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us.

About the Team

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. Now is a unique time to join: you’ll get to help shape Terran R's fundamental avionics architecture and be given a high degree of ownership on components that will fly.

About the Role

As a Mixed‑Signal 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.

About You

• Bachelor’s 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
• Technical expertise in ADCs, DACs, signal conditioning, amplifier circuits, filter design, etc.
• Experience 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 but not required

• Familiarity with embedded software development and integration for avionics systems
• Experience with design for reliability and manufacturability of avionics hardware and systems
• Understanding of interfacing hardware such as sensors (thermocouples, pressure transducers) and electromechanical devices (solenoids, pyrotechnics, actuators)

Equal Opportunity Employer

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

If you need a reasonable accommodation, please contact us at [e-mail].