Sr Software Engineer, Compiler & Runtime

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:

Relativity Space is on a mission to better connect humanity to space and the universe beyond our decades of experience scaling world-class technology organizations like Google CEO Eric Schmidt is guiding Relativity into itsnext phase: advancing Terran R toward launch and building the foundation for long-term impact.

The Terrestrial Software team is building the foundation for an automated rocket factory and integrated launch platform. Their mission is to automate and streamline workflows across the entire lifecycle of Terran R from raw material intake to launch operations and eventually manufacturing on Mars. Today that means partnering directly with teams across design materials manufacturing and test and launch to design implement and deploy end user enterprise-wide applications industrial automation data analytics infrastructure and next-generation AI to solve real problems and accelerate progress. Long term the team is laying the groundwork for a modular scalable software platform that can power highly autonomous operations on Earth and beyond. This is a team for builders and thinkers who thrive on cross-functional impact and want to shape the digital backbone of our future in space.

About the Role:

On the Automation and Control Engineering (ACE) team you will design build and operate the software that connects our automated factory test facilities and launch systems. ACE is responsible for the full stackfrom the central platform down to the device-level software running on controllers and equipmentand your work will directly shape how Terran R is built tested and flown.

• * Own features end-to-end across the software development lifecycle: from problem framing and architecture through implementation test deployment and operation
• Build and maintain the platform services (real-time data pipelines orchestration UI alerting) automation tooling and languages and device-level software used by teams across the company to control and monitor real hardware
• Partner directly with hardware test manufacturing and launch teams to design instrument and continuously improve automation and control systems that are safe observable and resilient in production environments

About You:

• You have 7 years of experience in systems programming (C or Rust) and/or programming language implementation with strong fundamentals in compilers interpreters or virtual machines
• You have built or extended domain-specific languages or execution engines for hardware automation scientific computation trading or other real-time domains where correctness latency and memory footprint matter
• You are comfortable designing fast low-allocation code paths and reasoning about performance in terms of cache behavior allocation patterns and data layout
• You are excited to work on a proprietary language used for live hardware control and calculations and to collaborate closely with users to evolve the language and runtime in a safety-critical context

Nice to haves but not required:

• Academic or industry background in compilers static analysis formal methods or programming languages research
• Experience implementing type systems bytecode interpreters JITs or code generation pipelines optimized for low latency and small memory footprints
• Experience building scriptable automation frameworks or configuration/DSL layers on top of C/Rust systems used to orchestrate hardware tests or complex workflows
• Familiarity with real-time scheduling concurrency models and fault-tolerance techniques used when a language or runtime is responsible for controlling physical equipment

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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