Senior Front-End Platform Engineer (React/TS) – Real-Time UI

Relativity Space; Long Beach (CA); On-site; USD 181,000 - 271,000; Full time

Benefits offered by this job

Equity

PTO & Sick Leave

Parental Leave

Learning & Development Stipend

Job summary

Relativity Space is seeking a senior frontend engineer to own the operator UI platform. You will shape the architecture, design system, and shared data layer used by multiple teams to ship features quickly.

You will drive performance optimizations for real-time telemetry, guide cross-team technical direction, and mentor engineers while building a scalable frontend platform for our Terran R program.

Qualifications

• Significant experience (typically 8+ years) building production web applications.
• A track record owning a frontend platform, design system, or large shared codebase that other teams depend on.
• Strong frontend performance skills: profiling, render optimization, and keeping complex UIs responsive under heavy, continuous data.
• Experience architecting state management and data flow for data‑intensive apps (e.g., Redux, streaming/WebSocket data, Web Workers).
• Ability to set cross‑team architecture and technical direction, and mentor senior engineers.

Responsibilities

• Own the frontend platform behind our operator UI — the application shell, design system, and shared data layer that every other team builds their features on -
• Define the architecture and contribution model that lets domain teams ship their own UI modules into one cohesive application
• Lead the consolidation of several separate front ends into a single, unified operator platform
• Build for hard real-time: render live hardware telemetry at high rates against strict, safety-critical performance budgets
• Set the technical direction and quality bar for frontend across the org, and raise the level of the engineers around you

Skills

TypeScript

React

Frontend architecture

Mentoring

Performance tuning

Tools

Redux

WebSocket

Web Workers

Bazel

Monaco

Job description

Relativity Space is seeking a senior frontend engineer to own the operator UI platform. You will shape the architecture, design system, and shared data layer used by multiple teams to ship features quickly.

You will drive performance optimizations for real-time telemetry, guide cross-team technical direction, and mentor engineers while building a scalable frontend platform for our Terran R program.