Staff Software Engineer, Front-End Platforms

Relativity Space•Long Beach, CA

5d•$181,000 - $271,000

About The Position

Relativity Space is building the Terran R launch vehicle and the software platform supporting an automated rocket factory and integrated launch operations. The Terrestrial Software team partners with design, materials, manufacturing, test, and launch teams to build enterprise applications, industrial automation, data analytics infrastructure, and AI capabilities. The Staff Software Engineer will own the frontend platform behind the operator UI, including its application shell, design system, and shared data layer. The role defines how domain teams contribute UI modules to a cohesive application, leads consolidation of separate front ends, and builds interfaces that render live hardware telemetry at high rates within strict, safety-critical performance budgets. The engineer also sets frontend technical direction and quality standards across the organization and mentors other engineers.

Requirements

Typically 8 or more years of experience building production web applications.
Deep expertise in TypeScript and React.
A track record owning a frontend platform, design system, or large shared codebase used by other teams.
Strong frontend performance skills, including profiling, render optimization, and keeping complex UIs responsive under heavy, continuous data.
Experience architecting state management and data flow for data-intensive applications, such as with Redux, streaming/WebSocket data, or Web Workers.
Ability to set cross-team architecture and technical direction, and mentor senior engineers.

Nice To Haves

Experience with real-time data visualization or charting, industrial control, SCADA, or hardware-in-the-loop systems.
Familiarity with binary streaming protocols such as WebSockets/protobuf and offloading work to Web Workers.
Experience with a monorepo build system such as Bazel or embedding code editors such as Monaco.

Responsibilities

Own the frontend platform behind the operator UI, including the application shell, design system, and shared data layer.
Define the architecture and contribution model that enables domain teams to ship UI modules into one cohesive application.
Lead consolidation of several separate front ends into a unified operator platform.
Build interfaces that render live hardware telemetry at high rates within strict, safety-critical performance budgets.
Set technical direction and quality standards for frontend engineering across the organization.
Raise the level of engineers through mentorship.