Radiant · 15 hours ago
Software Engineer, Frontend
El Segundo, CA
Full-time
Onsite
Entry Level
$124K/yr - $173K/yr
1+ years expRadiant is a startup based in El Segundo, CA, focused on building portable nuclear microreactors. They are seeking a Frontend Engineer to develop and maintain their website and web-based tools, collaborating with various teams to create intuitive applications for monitoring and analyzing reactor performance.
Clean EnergyEnergyEnergy EfficiencyRenewable Energy
No H1B
Responsibilities
Design, develop, and maintain Radiant's public-facing website and internal web applications using React and TypeScript, ensuring responsive, accessible, and high-performance user experiences across devices with modern build tooling (Vite)
Collaborate with the marketing team to translate brand vision and content strategy into engaging web experiences
Build, iterate, and maintain our data platform used by operators to monitor and control reactor systems, prioritizing reliability, real-time data visualization, and intuitive workflows for critical operations using React-based dashboards and component libraries
Create interactive data visualization and analysis tools in TypeScript that enable engineers to explore reactor performance data, simulation results, and test outcomes to inform design decisions and validate system behavior
Collaborate with software, hardware, operations, and marketing teams to define frontend architecture, establish UI/UX patterns and reusable component libraries, and integrate web applications with backend APIs, databases, and real-time data streams
Qualification
Required
Bachelor's degree in Computer Science, Math, Physics, Engineering, or a related technical field
1+ Years of professional experience in front-end, full-stack, web development engineering
Proficiency in React and Typescript for front-end development
Strong experience building modern web applications with React, Typescript, and Vite as a stack
Familiar with Nginx and Docker
Ability to prioritize, self-direct, and manage multiple projects, with strong communication skills, interacting with multiple stakeholders
Customer-focused mindset with an emphasis on creating intuitive and easy-to-use products
Preferred
Experience with React Compiler 19+
Proficiency in programming languages such as Python, Rust, or C#
Experience with technical visualization tools (WebGL, D3.js, Apache ECharts) and time-series data
Familiarity with Kubernetes and highly available applications
Familiarity with Cloudflare CDN, AWS EKS, and AWS EC2
Portfolios or personal websites showcasing your prior work are a plus
Benefits
Substantial incentive stock plan for all full-time employees.
100% premium coverage for base Silver level plan for employee + 50% premium coverage for dependents. Platinum plans available.
Sponsored memberships for eligible employees and their dependents.
100% premium coverage for top tier plan + 50% for dependents.
100% premium coverage for top tier plan (including orthodontia) + 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.
Burgeoning satellite offices in Oak Ridge, TN and Washington, D.C., near Capitol Hill.
Company
Radiant
Radiant develops portable nuclear microreactors designed to generate electricity and heat in a compact, factory-built form.
51-200 employees
Funding
Current Stage
Late StageTotal Funding
$518.82MKey Investors
Boost VC,Draper AssociatesAlumni Ventures,DCVCAndreessen Horowitz
2025-12-17Series D· $300M
2024-11-14Series C· $165M
2023-04-18Series B· $40M
Leadership Team
Doug Bernauer
Chief Executive Officer
Recent News
alleywatch.com
2026-01-23
2026-01-07
The Motley Fool
2026-01-04
Company data provided by crunchbase