Full Stack Developer

Opstree Global; Mumbai; On-site; INR 1,500,000 - 2,500,000; Full time

Job summary

Opstree Global is seeking a skilled React.js + Node.js Developer to own full-stack development of scalable web applications. You will build responsive frontend interfaces, develop RESTful APIs, and ensure production-ready quality across both client and server layers.

The role requires 3+ years of hands-on experience with React.js and Node.js, API integration, and strong problem-solving skills. Expect a collaborative, fast-paced environment with modern tooling.

Qualifications

• 3+ years of experience in React.js and Node.js development.
• Hands-on experience in developing production-grade web applications.
• Experience building and consuming RESTful APIs.

Responsibilities

• Develop responsive and reusable user interfaces using React.js.
• Build and maintain application components using React Hooks, Redux, or Context API.
• Design and build RESTful APIs using Node.js.
• Develop scalable backend services and business logic.
• Design and maintain database models using MongoDB, MySQL, or PostgreSQL.
• Implement authentication and authorization using JWT.
• Write clean, maintainable, and reusable code.
• Perform unit testing and debugging for frontend and backend modules.
• Collaborate with QA and development teams during testing and deployment.

Skills

React.js Development

Node.js & Express.js Development

REST API Development

Frontend & Backend Integration

Application Performance Optimization

Testing & Debugging

Database Management

Git / GitHub

Education

Bachelor's or Master's in CS/IT or related field

Tools

GitHub

TypeScript

AWS Basics

Docker

CI/CD

Job description

Role Overview

We are looking for a React.js + Node.js Developer to build and maintain scalable web applications. You will own both the frontend and backend development, building responsive user interfaces, developing RESTful APIs, and ensuring high-quality, production-ready applications. You should be comfortable working across the full stack and delivering end-to-end features.

Key Responsibilities

Frontend Development

Develop responsive and reusable user interfaces using React.js.

Build and maintain application components using React Hooks, Redux, or Context API.

Integrate frontend applications with backend APIs.

Optimize application performance and improve user experience.

Ensure responsive design and cross-browser compatibility.

Backend Development

Design and build RESTful APIs using Node.js.

Develop scalable backend services and business logic.

Design and maintain database models using MongoDB, MySQL, or PostgreSQL.

Implement authentication and authorization using JWT.

Ensure proper API versioning, validation, logging, and error handling.

Quality & Production Readiness

Write clean, maintainable, and reusable code.

Perform unit testing and debugging for frontend and backend modules.

Collaborate with QA and development teams during testing and deployment.

Optimize application performance and resolve production issues.

Participate in code reviews and follow Git-based development practices.

Required Qualifications

Education

B.E. / B.Tech / MCA / M.Sc. in Computer Science, Information Technology, or a related field.

Experience

3+ years of experience in React.js and Node.js development.

Hands-on experience in developing production-grade web applications.

Experience building and consuming RESTful APIs.

Strong understanding of frontend and backend development.

Technical Skills

Frontend: React.js, JavaScript (ES6+), HTML5, CSS3, Bootstrap/Material UI, React Hooks, Redux/Context API.

Backend: Node.js, Express.js, REST API Development, JWT Authentication.

Databases: MongoDB, MySQL, or PostgreSQL.

Version Control: Git / GitHub.

Good to Have: TypeScript, AWS Basics, Docker, CI/CD.

Preferred Qualifications

Experience working on scalable web applications.

Knowledge of API optimization and application performance tuning.

Understanding of Agile/Scrum methodologies.

Strong debugging and problem-solving skills.

Core Competencies

Technical Competency

React.js Development

Node.js & Express.js Development

REST API Development

Database Management

Frontend & Backend Integration

Application Performance Optimization

Testing & Debugging

Behavioural Competency

Ownership & Accountability

Problem Solving

Attention to Detail

Cross-Functional Collaboration

Communication Skills

Learning Agility

Adaptability

Time Management