React JS Developer

ReactJS Developer / Front-End Developer (React)

Location

New Jersey (NJ) Hybrid / Onsite (based on client need)

Experience

5-8 years in Front-End / Full-Stack development with strong React.js focus.

Role Overview

We are seeking a skilled ReactJS Developer to design, develop, and deliver modern, responsive web applications. The ideal candidate will be strong in React.js, JavaScript (ES6 ), HTML5, CSS3, and have hands-on experience integrating front-end applications with Node.js REST APIs and MongoDB/relational databases. You will work closely with tech leads, designers, and backend teams to build scalable, production-ready solutions in an Agile environment.

Key Responsibilities

Front-End Development (ReactJS)

• Develop and maintain single-page applications (SPA) using React.js and modern JavaScript.

• Build reusable, modular UI components and front-end libraries for future use.

• Convert wireframes/PSD designs into functional and responsive web applications.

• Implement clean state management using Redux / Context API / Hooks where applicable.

• Ensure cross-browser compatibility, accessibility (WCAG), and responsive behavior.

Back-End Integration & Services

• Create and consume RESTful APIs using Node.js/Express (or integrate with existing services).

• Collaborate with backend teams to define API contracts and ensure smooth integration.

• Work with MongoDB (and/or relational databases) for data modeling and retrieval.

Testing, Quality & Performance

• Write and maintain unit and integration tests (Jest, React Testing Library, Mocha, etc.).

• Optimize application performance for maximum speed and scalability (lazy loading, code splitting, caching).

• Debug, troubleshoot, and resolve UI and integration issues quickly.

Collaboration & Delivery

• Collaborate with tech leads to design and document sub-modules and technical solutions.

• Follow coding standards, design patterns, and Agile project procedures.

• Work autonomously with minimal supervision and proactively drive task completion.

• Participate in code reviews, sprint planning, and release activities.

Must-Have Skills

• React.js with strong hands-on experience building production applications.

• JavaScript (ES6 ), HTML5, CSS3 and responsive UI development.

• Experience converting wireframes/PSD into front-end implementation.

• Node.js / Express experience for REST API development or integration.

• Working knowledge of MongoDB (plus exposure to SQL databases is a bonus).

• Strong understanding of component lifecycle, Hooks, state management, and routing.

• Experience with Git and modern CI/CD workflows.

• Strong debugging, problem-solving, and communication skills.

Nice-to-Have Skills

• AngularJS/Angular exposure (migration or hybrid environments).

• Experience with TypeScript.

• Knowledge of GraphQL / WebSockets.

• Familiarity with cloud deployments (AWS/Azure/Google Cloud Platform) and Docker.

• Experience with microservices-based UI integration.