UI Engineer (React JS)

Valiant Technologies LLC; Austin (TX); On-site; USD 120,000 - 180,000; Full time

Job summary

VALIANT TECHNOLOGIES LLC is seeking a seasoned Front-End Engineer in Austin to build reusable, scalable React components and implement hooks, managing state with Redux or Context API while integrating REST and GraphQL services.

You will collaborate with designers and backend engineers, optimize performance, and write unit tests with Jest or similar tools. A strong focus on security, code quality, and staying current with React patterns is essential.

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 other 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.

Responsibilities

• Build reusable, scalable React components following best practices.
• Implement React Hooks, state management (Redux / Context API), and component lifecycle methods.
• Integrate and consume RESTful APIs and GraphQL services.
• Use React ecosystem tools such as Webpack, Enzyme, Redux, and Flux.
• Work on application 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

Problem solving

Communication

Education

Bachelor’s degree in CS or related field

Tools

React.js

React Hooks

Redux

Flux

Webpack

Enzyme

REST APIs

GraphQL

Job description

Responsibilities

• Buildreusable, scalable React componentsfollowing best practices.
• ImplementReact Hooks, state management (Redux / Context API), and component lifecycle methods.
• Integrate and consumeRESTful APIsandGraphQLservices.
• Use React ecosystem tools such asWebpack, Enzyme, Redux, and Flux.
• Work on applicationperformance tuning, code splitting, and rendering optimizations.
• Followfront-end security best practicesto ensure secure UI development.
• Develop and maintainunit testsusing 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 latestReact updates, patterns, and industry best practices.
• Work with version control tools likeGit/GitHubfor code management.

Required Skills & Experience

• 8-10 years of hands-on experience in UI / Front-End Development.
• Advanced experience working withReact.js, React Hooks, Redux, Flux, and component-based architecture.
• Experience withWebpack, Enzyme, and other front-end build/testing tools.
• Familiarity withREST APIs, GraphQL, and third-party service integration.
• Awareness offront-end security practices(CSP, XSS prevention, etc.).
• Hands-on experience writingunit testsand maintaining high test coverage.
• Excellent problem-solving, communication, and collaboration skills.

VALIANT TECHNOLOGIES LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion, transfer, compensation, benefits, discipline, termination and all other employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, citizenship/immigration status, veteran status or any other protected status. VALIANT TECHNOLOGIES LLC will not make any posting or employment decision that does not comply with applicable laws relating to labor and employment, equal opportunity, employment eligibility requirements or related matters. Nor will VALIANT TECHNOLOGIES LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment except as necessary to comply with law, regulation, executive order, or federal, state, or local government contract