Senior Software Engineer, Backend

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: Relativity Space is on a mission to better connect humanity to space and the universe beyond our planet. With decades of experience scaling world-class technology organizations like Google, CEO Eric Schmidt is guiding Relativity into its next 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: Design, develop, and lead the creation of core data components of our factory and launch software platform, including: Data technology abstraction and API development. Analytics and reporting architectures. Data modeling, management, and development. Cloud and on-prem application / services / API development. In this role, you will be responsible for driving the development of a distributed data platform spanning launch and factory components. You’ll design and create technologies enabling data ingress / egress for the launch vehicle, as well as core factory tools such as our Stargate printers. You'll make key tradeoff decisions, mentor junior engineers, build new systems and tooling, and recommend / drive high impact across existing systems. About You: Degree in Computer Science, Computer Engineering, Electrical Engineering, or related field. 6+ years of experience implementing code level patterns to enable codebases and teams to scale, with 1+ years of experience leading data architectures at scale. 4+ years of experience leveraging an array of data technologies including one or many of the following: InfluxDB, MongoDB, Redis, PostgreSQL, Cassandra, Kafka, Spark, and more. 4+ years of experience with at least one of C++, Go, Python, C#, or Typescript. Familiarity with agile methodologies. Familiarity with containerization and deployment technologies like Kubernetes and Docker. Nice to haves but not required: Experien ... (truncated, view full listing at source)