At Relativity Space, we have two audacious goals: to build the next great commercial launch company with Terran R and to become America's leading force in additive manufacturing innovation. Both contribute to our long-term vision of creating humanity’s industrial base on Mars, paving the way for interplanetary life to expand the possibilities of the human experience. This journey begins right here on Earth – where we design, build, and fly rockets to deliver customer payloads to orbit. Terran R, our medium-to-heavy lift reusable rocket, fulfills the growing demand for launch capacity, thanks to our iterative approach that accelerates design, testing, and development while minimizing costs. While our groundbreaking research and development in 3D printing pushes the boundaries of large-scale additive manufacturing.
Your journey with us is more than just a job – it’s an opportunity to shape the future of aerospace technology, additive manufacturing, and the human experience alongside a community of passionate, creative individuals. Join us on this extraordinary journey, as we work together to transform our vision into reality.
About the Team:
Relativity’s Integrated Performance teams ensure that our products work across all systems and disciplines, from trajectory design to aerodynamics to reliability analysis and beyond. Our groups size the Terran R rocket, design its missions for customer success, reliability, and reusability, and ensure that every system on the rocket and ground is engineered correctly for the demanding environments of launch and entry. Recently, we completed the preliminary design and analysis of Terran R including Relativity’s first-ever work on launch vehicle reusability, spanning advanced trajectory simulations, wind tunnel testing, and structures analysis, among many other projects.
The GNC Simulation team within the Integrated Performance group develops and operates the highest-fidelity six degree-of-freedom simulation of the launch vehicle. This simulation is used for Guidance, Navigation, and Control (GNC) algorithm development, hardware-in-the-loop testing, and vehicle performance analysis. The team strives to build tight integrations between the tools developed across the entire company to support rapid design cycles and enable effective design trades and studies.
About the Role:
- Interfacing with cross-disciplinary software and hardware teams to drive software requirements
- Interfacing with analysis groups to drive simulation development
- Developing simulation configuration, scheduling, logging, Monte Carlo, and visualization capabilities
- Scaling our simulation to support multiple vehicle configurations and missions
- Implementing numerical solvers and physics models
- Developing simulation interfaces with GNC algorithms
- Maintaining and improving the development environment for simulation users
About You:
- An undergraduate or graduate degree (BS/MS/PhD) in engineering or related discipline
- 2+ years of software engineering experience
- High proficiency with compiled (e.g. C++, Rust) and scripted (e.g. Python) languages
- Experience developing high-performance simulations of aerospace vehicles (rockets, satellites, aircraft, etc.)
- Experience developing simulation interfaces with hardware-in-the-loop (HITL) testing
- Experience implementing software development practices and workflows such as Docker, continuous integration (CI), continuous deployment (CD), and AWS
Nice to haves but not required:
- Ability to work in a fast-paced and intense start-up environment
- Ability to complete projects with ownership of end-to-end solutions with a high degree of independence
- Prior work in a startup or agile development environment
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.
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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Relativity Space Offices
OnSite Workspace
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.
