Senior React Developer
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General Info: US Citizens or GC Holders only Must be on our W2- no C2CMust be local to St Louis, MO- Onsite 5 days a week (63141)
Overview:
We're looking for a mid-to-senior React Developer to design and build modern, responsive web applications. The right person writes clean, maintainable component-based code, partners closely with designers and back-end engineers, and brings strong opinions on front-end architecture without losing sight of what the business actually needs. This role fits someone who's past the basics — comfortable owning features end-to-end, mentoring less experienced developers, and contributing to technical decisions about state management, performance, and tooling.
Responsibilities:
- Design, build, and maintain user-facing features in React
- Translate UI/UX designs into high-quality, reusable components
- Manage application state (Redux, Context API, Zustand, React Query, or similar)
- Integrate front-end with REST and/or GraphQL APIsWrite clean, well-tested code (Jest, React Testing Library, Cypress, etc.)Optimize components for performance across devices and browsers
- Participate in code reviews and contribute to engineering best practices
- Collaborate with designers, PMs, and back-end engineers in an agile environment
- Troubleshoot and debug production issues through to deployment
Required Skills & Experience:
- 4+ years professional front-end development 3+ years building production applications with ReactStrong JavaScript (ES6+) and TypeScript fundamentals
- Solid understanding of React hooks, component lifecycle, and modern patternsHTML5, CSS3, and modern styling (CSS-in-JS, Tailwind, Styled Components, or SCSS)
- Comfortable consuming REST APIs; async patterns and error handling
- State management experience (Redux, Context, Zustand, or React Query)
- Proficient with Git and modern dev workflows (PRs, code review, CI/CD)
- Strong testing mindset — unit, integration, and/or end-to-end
- Clear written and verbal communication
Preferred: Next.js or other React-based frameworks (Remix, Gatsby)
GraphQL (Apollo or Relay) Build tooling (Webpack, Vite, esbuild) Accessibility (WCAG) and responsive design Performance profiling (React DevTools, Lighthouse) Design systems or component libraries (MUI, Chakra, Radix, shadcn) Back-end exposure (Node.js, serverless, BFF patterns) Cloud platforms (AWS, Azure, or GCP) React Native / mobile Ideal Fit: Self-directed and pragmatic — knows when to ship and when to refactor Comfortable across the front-end stack; willing to dig into unfamiliar code Collaborative; gives and receives feedback well Curious about new tools, but not chasing every shiny thing