Senior React UI Engineer - Scalable Components

Ethereum Technologies LLC

Austin (TX)

On-site

USD 120,000 - 160,000

Full time

47 hours ago
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Job summary

ETHEREUM TECHNOLOGIES LLC in Austin, TX is seeking a senior UI/Front-End Developer to build scalable React applications, deliver reusable components, and collaborate with designers and backend engineers to ship high‑quality UI.

You will implement React Hooks, manage state with Redux/Context, integrate REST/GraphQL services, optimize performance, and enforce security and testing standards with Jest and modern tooling.

Qualifications

  • 8–10 years of hands-on experience in UI / Front-End Development.
  • Advanced experience with React.js, React Hooks, Redux, Flux, and component-based architecture.
  • Experience with Webpack, Enzyme, and front-end build/testing tools.
  • Familiarity with REST APIs, GraphQL, and third-party service integration.
  • Awareness of front-end security practices (CSP, XSS prevention).
  • Hands-on experience writing unit tests and maintaining high test coverage.
  • Excellent problem-solving, communication, and collaboration skills.

Responsibilities

  • Build reusable, scalable React components following best practices.
  • Implement React Hooks, state management, and lifecycle methods.
  • Integrate RESTful APIs and GraphQL services.
  • Use Webpack, Enzyme, Redux, and Flux in the workflow.
  • Work on performance tuning, code splitting, and rendering optimizations.
  • Follow front-end security best practices to ensure secure UI development.
  • Develop and maintain unit tests using Jest, React Testing Library, or similar frameworks.
  • Collaborate closely with designers, backend engineers, and product managers to deliver high-quality UI.
  • Debug, troubleshoot, and resolve UI/UX issues across the application.
  • Stay updated with the latest React updates, patterns, and industry best practices.
  • Work with version control tools like Git/GitHub for code management.

Skills

UI / Front-End Development
React.js
React Hooks
Redux
Flux
REST APIs
GraphQL
Webpack
Enzyme
Unit tests
Jest
Git / GitHub

Tools

Webpack
Enzyme
Redux
Flux
Git/GitHub

Job description

ETHEREUM TECHNOLOGIES LLC in Austin, TX is seeking a senior UI/Front-End Developer to build scalable React applications, deliver reusable components, and collaborate with designers and backend engineers to ship high‑quality UI.

You will implement React Hooks, manage state with Redux/Context, integrate REST/GraphQL services, optimize performance, and enforce security and testing standards with Jest and modern tooling.

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