High Performance Compute Responsible Engineer

At Relativity Space were building rockets to serve todays needs and tomorrows breakthroughs. OurTerran R vehicle will deliver customer payloads to orbit meeting the growing demand for launchcapacity. But thats just the start. Achieving commercial success with Terran R will unlock newopportunities to advance science exploration and innovation pioneering progress that reaches beyondthe known.

Joining Relativity means becoming part of something where autonomy ownership and impact exist at every level. Here youre not just executing tasks; youre solving problems that havent been solved before helping develop a rocket a factory and a business from the ground up. Whether youre in propulsion manufacturing software avionics or a corporate function youll 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 were writing together. Nowis a unique moment in time where its early enough to leave your mark on the product the process andthe culture but far enough along that Terran R is tangible and picking up momentum. The mostmeaningful work of your career is waiting. Join us.

About the Team:

The Interplanetary Sciences Program was establishedto expand access to scientific exploration across our solar system. Its mission is to make planetary research faster more affordable and more capable than ever before by rethinking how science missions are designed built andoperated. The program aims to enable scientists to send instruments to distant worlds without decades of development or prohibitive costs. By creating a sustainable model for interplanetary exploration we are transforming space science from an occasional event into a continuous process of discovery that accelerates knowledge broadens participation and inspires the next generation of explorers.

About the Role:

Youllown thecomputehardware from architecture throughbring uptheresno hand-off to another team mid-stream. You pick the components you design the boardyoure the one powering it on and debugging it with the software team

• Design the compute boards that deliver 10 TFLOPS of processing power for onboard AI/ML inference and science data processing within the Relay Data Center owning the hardware from schematic capture through board-level validation
• Architect and implement power delivery networks for high-complexity carrier boards including 500W multi-rail designs with tight sequencing integrating GPU or CPU compute modules onto custom PCBs with high-speed coherent interconnects
• Define thermal interface requirements (power dissipation budgets junction temperature limits interface material selection) and hand off specifications to the mechanical team who own the thermal and packaging solution
• Design and validate high-speed memory interfaces (HBM DDR5) PCIe Gen 4/5 chip-to-chip links and 10 GbE Ethernet connections to the payload network along with board-level power monitoring current limiting and radiation upset recovery circuitry
• Lead hardware bringup and board-level validation. Diagnose and resolve issues hands-on while collaborating closely with the software engineers who are building the software environment on top of your hardware

About You:

• BSEE with 5 years designing and bringing up high-speed digital compute boards ideally with direct exposure to GPU HPC or modern accelerator platforms
• Proficient in high-speed digital PCB design principles: multi-GHz signaling dense BGA escape routing on high layer count stackups and signal integrity analysis through both simulation and measurement
• Strong command of power integrity and power delivery network design including multi-rail architectures power management IC selection voltage sequencing and board-level current limiting
• Strong working experience with high-speed serial interface design analysis and debug particularly PCIe Gen 4/5 topology configuration and Ethernet

Nice to haves but not required:

• Experiencewriting basic firmware for hardwarebring upand validation
• Hands-on embedded systems debug skills that let you move between careful pre-fab analysis and fast practical problem-solving on the bench
• Experience with COTS hardware for space applications including radiation awareness component derating and upset mitigation techniques (ECC memory scrubbing watchdog/reset architectures)
• Hands-on experience with physical PCB layout particularly for complex high-layer-count boards with dense BGA packages
• Familiarity with thermal management at the board and system level including junction temperature modeling thermal interface material selection and collaborating with mechanical engineers on packaging solutions for high-TDP modules

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.

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