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 Guidance Navigation and Control (GNC) and Performance teams are responsible for defining and analyzing how Terran R flies from liftoff to landing. The work combines a variety of disciplines such as advanced modeling orbital mechanics software development and dynamic systems to optimize every phase of flight. You’ll develop flight algorithms simulate trajectories and model Terran R’s dynamic behavior across mission profiles. Whether you're early in your career or a seasoned expert you’ll have the opportunity to own critical pieces of the system influence design and see your work fly. The department is part of the Integrated Performance team uniting key disciplines to drive performance at every stage of the mission.
About the Role:
- You will be a key contributor to the 6DOF simulation used for GNC algorithm development Monte Carlo analysis and hardware-in-the-loop (HITL) testing
- Work with analysis and hardware teams to develop and integrate subsystem models into the 6DOF simulation
- Implement numerical solvers and physics models
- Develop simulation configuration scheduling logging and Monte Carlo capabilities
- Develop simulation interfaces with GNC algorithms
- Maintain and improve the development environment for simulation users
- Contribute to other cross-functional software packages at Relativity
About You:
- An undergraduate or graduate degree (BS/MS/PhD) in engineering physics mathematics or related disciplines
- Proficiency with compiled (e.g. C++ Rust) and scripted (e.g. Python) languages
- Experience developing physics-based simulations
- Relevant student team research internship or full-time experience
- Ability to work in a fast paced and intense startup environment
- Ability to complete projects with ownership of end-to-end solutions with a high degree of independence
Nice to haves but not required:
- Familiarity with the design and analysis of launch vehicles or space systems
- Experience developing aerospace vehicle simulations that interface with GNC algorithms and/or hardware-in-the-loop (HITL) testing
- Experience implementing high-performance computing (HPC) solutions
- Experience implementing software development practices and workflows such as Docker continuous integration (CI) and continuous deployment (CD)
At Relativity Space we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience qualifications and other job-related factors.
Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity a generous PTO and sick leave policy parental leave an annual learning and development stipend and more! To see some of the benefits & perks we offer please visit here.
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 [email protected].
Skills Required
- Undergraduate or graduate degree in engineering physics mathematics or related disciplines
- Proficiency with compiled languages like C++ and Rust and scripted languages like Python
- Experience developing physics-based simulations
- Ability to work in a fast-paced startup environment
- Ability to complete projects with high independence
Relativity Space Compensation & Benefits Highlights
- Healthcare Strength—Health coverage is described as comprehensive including medical dental vision company‑funded HSA mental‑health resources One Medical access an EAP and wellness perks.
- Parental & Family Support—Family-building support includes generous parental leave and a $10000 stipend for fertility or adoption with added offerings like adoption assistance and post‑leave return‑to‑work support.
- Wellbeing & Lifestyle Benefits—Everyday benefits such as complimentary lunches and snacks visiting food trucks wellness stipends gym discounts team events and learning stipends enhance the overall package.
Relativity Space Insights
What We Do
Relativity Space is on a mission to better connect humanity to space and the universe beyond our planet. Our medium-to-heavy lift reusable rocket Terran R 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.
Why Work With Us
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.
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At Relativity Space we are an office-first company. We believe our best work happens in person—where collaboration is faster problem-solving is sharper and ideas flow more freely.
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Date Posted
05/22/2026
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