React Developer

Quantum Technologies. LLC; Plano (TX); On-site; USD 110,000 - 165,000; Full time

Job summary

Quantum Technologies, LLC is seeking a senior frontend engineer to build scalable UI components in React.js. You will collaborate with designers, translate mockups into responsive interfaces, and connect frontend with backend services via RESTful APIs.

You will work with Redux/Context for state, adopt Next.js SSR, write tests with Jest, and optimize performance. Strong HTML5/CSS3, TypeScript, Git, Webpack, and accessibility practices are essential.

Qualifications

• Bachelor's degree in CS/Engineering or equivalent practical experience.
• 6+ years of professional React.js development experience.
• Hands-on with React Hooks, Context API, and lifecycle methods.
• Strong HTML5, CSS3, and responsive web development skills.
• Experience with Redux or MobX and RESTful APIs integration.
• Familiarity with Webpack/Babel; version control with Git.
• Experience with TypeScript and Next.js SSR; testing with Jest/RTL.
• Knowledge of frontend performance optimization and accessibility.

Responsibilities

• Build reusable, modular, scalable UI components.
• Collaborate with UI/UX designers to translate designs into responsive interfaces.
• Integrate frontend applications with backend services using RESTful APIs.
• Implement state management with Redux, Context API, or MobX.
• Optimize applications for performance, scalability, and responsiveness.
• Troubleshoot and resolve bugs and performance issues.
• Write clean, maintainable code and participate in code reviews.

Skills

React.js

React Hooks

Context API

Component lifecycle

HTML5

CSS3

Responsive web

Redux

MobX

RESTful APIs

TypeScript

SSR/Next.js

Jest

React Testing Library

Performance optimization

Web accessibility

Education

Bachelor's degree or equivalent practical experience

Tools

Webpack

Babel

Git

Next.js

Jest

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Work Authorization:US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

Job Description:

• Build reusable, modular, and scalable UI components.
• Collaborate with UI/UX designers to translate designs into responsive and interactive interfaces.
• Integrate frontend applications with backend services using RESTful APIs.
• Implement state management using Redux, Context API, or MobX.
• Optimize applications for performance, scalability, and responsiveness.
• Troubleshoot and resolve application bugs and performance issues.
• Write clean, reusable, efficient, and well-documented code.
• Participate in code reviews and follow frontend development best practices.

Required Qualifications:

• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• 6+ years of professional experience in React.js development.
• Hands-on experience with React Hooks, Context API, and component lifecycle methods.
• Strong knowledge of HTML5, CSS3, and responsive web development.
• Experience with state management libraries such as Redux or MobX.
• Experience integrating RESTful APIs and backend services.
• Familiarity with frontend build tools such as Webpack and Babel.
• Experience with Git and version control systems.
• Strong problem-solving, communication, and collaboration skills.
• Experience with TypeScript.
• Familiarity with Next.js and server-side rendering (SSR).
• Experience with Jest and React Testing Library.
• Knowledge of frontend performance optimization techniques.
• Understanding of web accessibility standards and best practices.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.