UI Engineer (React JS) at QUANTUM TECHNOLOGIES LLC

Job description

body> Job Description Job Overview • Job ID: J52192 • Job Title: UI Engineer (React JS) • Location: Austin, TX • Duration: 9 Months + Extension • Hourly Rate: Depending on Experience (DOE) • Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, L2-EAD, GC-EAD • Client: To Be Discussed Later • Employment Type: W-2, 1099, C2C View All Jobs Similar Jobs • Embedded Software Engineer - Alpharetta, GA • Embedded Software Engineer - sanfransico, CA • Quality Assurance Engineer - Cincinnati, OH • AI engineer - chicago, IL • AI engineer - dallas, TX Job Description We are seeking a highly skilled UI Engineer with strong expertise in React.js and modern front-end development to join our team onsite in Plano, TX. The ideal candidate will have deep knowledge of JavaScript, front-end frameworks, UI optimization, and building scalable, reusable components while ensuring high-quality user experiences. Responsibilities • Develop responsive, user-centric interfaces using React.js , JavaScript, HTML, and CSS. • 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 . • Conduct browser-based debugging , performance analysis, and UI optimizations. • Work on application performance tuning, code splitting, and rendering optimizations . • Ensure responsiveness and compatibility across different browsers and screen sizes . • 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. Required Skills & Experience • 8–10 years of hands-on experience in UI / Front-End Development . • Strong proficiency in JavaScript, HTML5, CSS3 , and modern UI frameworks. • Advanced experience working 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. • Strong debugging skills with browser tools and performance testing software. • Understanding of cross-browser compatibility , responsive design, and UI performance. • Awareness of front-end security practices (CSP, XSS prevention, etc.). • Hands-on experience writing unit tests and maintaining high test coverage. • Excellent problem-solving, communication, and collaboration skills. Apply Now Equal Opportunity Employer QUANTUM 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. QUANTUM 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 QUANTUM 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

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Job Overview
UI Engineer (React JS)
9 Months + Extension
Depending on Experience (DOE)
US Citizen, Green Card, OPT-EAD, CPT, H-1B,
To Be Discussed Later
View All Jobs
Similar Jobs
Embedded Software Engineer - Alpharetta, GA
Embedded Software Engineer - sanfransico, CA
Quality Assurance Engineer - Cincinnati, OH
AI engineer - chicago, IL
AI engineer - dallas, TX
Develop responsive, user-centric interfaces using React.js , JavaScript, HTML, and CSS.
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 .
Conduct browser-based debugging , performance analysis, and UI optimizations.
Work on application performance tuning, code splitting, and rendering optimizations .
Ensure responsiveness and compatibility across different browsers and screen sizes .
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 .

Nice-to-haves

None flagged.

Application prep

Use the role’s language and application details while tailoring your materials.

Keywords to mirror

reactaijavascriptapigraphqlrest

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