Senior Software Engineer, Front End

Radiant is a startup building portable nuclear microreactors. They are seeking a Senior Frontend Engineer to own the frontend for their telemetry and fleet management platform, working with React and TypeScript.

• Own critical parts of the frontend for our internal telemetry and fleet management platform, working in a modern React + TypeScript + Vite codebase.
• Develop highly reliable, performant systems for data review and analysis.
• Develop frontend pages for complex device configuration and telemetry systems.
• Collaborate with other members of the Mission Software team and reach consensus among stakeholders across the company.

• Bachelor's degree in Computer Science, Engineering, Physics, or a related technical field.
• 5+ years of professional experience in web development, frontend development, and / or desktop GUI development.
• Proficient in using React + TypeScript for SPAs, testing with Jest + Playwright
• Experience building highly performant, complex, mission-critical systems using technologies like WebSockets, WebRTC, or SSE.
• Has worked on a complicated UI system before, driving forward critical features
• Strong code review & debugging skills.
• Experience using the following technologies: TanStack Query + React Router, Pixi.js + WebGPU, Yjs or similar CRDT
• HMI or dashboarding design experience
• Hands-on hardware tech experience, working closely with hardware engineers to develop deeply coupled applications.
• Must be willing to work extended hours and weekends as necessary to accomplish our mission.
• Must work 100% onsite at El Segundo HQ.

• Stock: Substantial incentive stock plan for all full-time employees.
• Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
• One Medical: Sponsored memberships for employees and their dependents.
• Vision: 100% top tier plan coverage + 50% for dependents.
• Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.
• Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
• 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
• Daily catered lunch. Free snacks and drinks.
• Flexible PTO policy. Remote workday allocation.
• Company and team-bonding events, happy hours and in-person camaraderie.
• Beautiful El Segundo headquarters close to the Pacific Ocean.