Java React

Capgemini; Kolkata District; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

Capgemini in Kolkata is seeking a skilled Java Full Stack Developer with strong React.js experience to build scalable web applications. You will work on backend services with Java, Spring Boot, and microservices, while delivering rich frontend interfaces using React, JavaScript, and CSS.

The role requires collaboration with product owners, architects, UX designers, and QA teams; exposure to cloud deployments, REST APIs, and modern dev practices is preferred.

Qualifications

• Proficient in Java 8/11/17+ with Spring, microservices and REST APIs.
• Hands-on React.js, JavaScript/TypeScript, HTML5, CSS3, Redux/Hooks.
• Experience with CI/CD, Docker, Kubernetes, and cloud platforms.

Responsibilities

• Design, develop, test, and maintain full‑stack web applications.
• Build responsive UI with React.js and backend services with Java/Spring.
• Create and consume RESTful APIs, integrate third‑party services.
• Collaborate across product, design, and QA teams in Agile sprints.
• Contribute to CI/CD pipelines and cloud deployments; ensure security.

Skills

Java

Spring Framework

Microservices

REST APIs

Hibernate/JPA

Kafka/RabbitMQ

React.js

JavaScript/TypeScript

HTML/CSS

Redux/React Hooks

CI/CD

Cloud basics

Agile/Scrum

Problem solving

Tools

Docker

Kubernetes

AWS/Azure/GCP

Git/GitHub

Job description

Please apply only if you are available ( 22.08.2026) and work location will be Kolkata.

Job Summary

We are seeking a highly skilled Java Full Stack Developer with strong experience in React.js for developing scalable, high-performance web applications. The ideal candidate will have expertise in both backend development using Java technologies and frontend development using React, along with experience in cloud platforms, REST APIs, and modern software development practices.

Key Responsibilities

• Design, develop, test, and maintain full-stack web applications.
• Build responsive and user-friendly interfaces using React.js, JavaScript, HTML5, and CSS3.
• Develop backend services and APIs using Java, Spring Boot, and Microservices architecture.
• Create and consume RESTful APIs and integrate third-party services.
• Collaborate with product owners, architects, UX designers, and QA teams.
• Write clean, scalable, and maintainable code following coding standards and best practices.
• Participate in code reviews, sprint planning, and Agile ceremonies.
• Troubleshoot production issues and optimize application performance.
• Implement security, authentication, and authorization mechanisms.
• Contribute to CI/CD pipelines and cloud deployments.

Required Skills & Qualifications

Backend Skills

• Strong proficiency in Java 8/11/17+
• Experience with Spring Boot, Spring MVC, Spring Security
• Hands-on experience with Microservices Architecture
• RESTful API development and integration
• Knowledge of Hibernate/JPA
• Experience with message queues such as Kafka or RabbitMQ

Frontend Skills

• Strong hands-on experience with React.js
• JavaScript (ES6+), TypeScript (preferred)
• HTML5, CSS3, Bootstrap, Material UI
• Redux, Context API, React Hooks
• Frontend performance optimization and responsive design

Database Skills

• Experience with SQL databases such as:
  • PostgreSQL
  • MySQL
  • Oracle
• Knowledge of NoSQL databases like MongoDB is a plus

DevOps & Cloud

• Git, GitHub, Bitbucket, or GitLab
• CI/CD tools such as Jenkins, Azure DevOps, or GitHub Actions
• Docker and Kubernetes
• Experience with AWS, Azure, or GCP

Additional Skills

• Agile/Scrum methodology
• Unit testing using JUnit, Mockito, Jest, React Testing Library
• Strong analytical and problem-solving skills

Excellent communication and teamwork abilities