Software Engineer II, Front-End Platforms

Relativity Space•Long Beach, CA

5d•$130,000 - $196,000

About The Position

Relativity Space is building rockets, including its Terran R vehicle, and developing software to support an automated rocket factory and integrated launch platform. The Terrestrial Software team works across design, materials, manufacturing, test, and launch to build enterprise applications, industrial automation, data analytics infrastructure, and AI capabilities. In this role, you will contribute to the frontend platform for the operator UI, including its application shell, design system, and shared data layer. You will implement frontend modules within the established architecture, help migrate features and components from separate front ends into the unified platform, and build performant UI components for live hardware telemetry. You will also learn from senior engineers, participate in code reviews, and apply frontend best practices.

Requirements

Typically 2 or more years of experience building production web applications.
Deep expertise in TypeScript and React.
Experience contributing to shared frontend codebases, component libraries, or design systems used by multiple teams.
Foundational frontend performance skills, including using profiling tools, identifying bottlenecks, and implementing basic optimizations.
Experience with state management patterns and real-time data updates in React applications, such as Redux, Context API, or WebSocket integrations.
Ability to collaborate effectively with senior engineers, receive technical mentorship, and contribute to architectural discussions.

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 or protobuf, and with offloading work to Web Workers.
Experience with a monorepo build system such as Bazel or embedding code editors such as Monaco.

Responsibilities

Contribute to the operator UI frontend platform, including the application shell, design system, and shared data layer.
Implement frontend modules following established architecture and contribution patterns for integration into the unified application.
Migrate features and components from separate front ends into the unified operator platform.
Build UI components that efficiently render real-time hardware telemetry while meeting performance requirements.
Participate in code reviews and apply best practices to improve code quality and frontend skills.