A Java Full Stack Developer is a skilled who works across both backend and frontend layers of an application, with Java as the core backend technology. Below is a complete, practical overviewrole, skills, tech stack, and career expectations—commonly used in India (including Bangalore tech roles).

What Does a Java Full Stack Developer Do?

A Java Full Stack Developer:
- Designs, builds, tests, and deploys end-to-end web applications
- Works on server-side logic (Java) and client-side UI
- Integrates APIs, databases, and cloud services
- Collaborates with product, QA, DevOps, and UI/UX teams

Core Skill Set

1. Backend (Java-Centric)
- Java (Core + Advanced)
- Spring Framework
- Spring Core
- Spring Boot
- Spring MVC
- Spring Security
- ORM / Persistence
- Hibernate
- JPA
- API Development
- RESTful services
- JSON / XML
- Authentication & Authorization
- JWT
- OAuth2

2. Frontend
- HTML5
- CSS3
- JavaScript (ES6+)
- UI Frameworks
- Angular
- State Management
- Redux / Context API (React)
- Responsive Design
- Bootstrap
- Material UI

3. Database




- Relational Databases
- MySQL
- PostgreSQL
- Oracle
- NoSQL (optional but valuable)
- MongoDB
- Redis
- SQL Queries, Indexing, Performance tuning

4. DevOps & Tools
- Version Control: Git, GitHub/GitLab
- Build Tools: Maven, Gradle
- CI/CD: Jenkins, GitHub Actions
- Containers: Docker
- Cloud Platforms
- AWS
- Azure
- GCP
- Servers
- Apache Tomcat
- Nginx

5. Testing & Quality
- Unit Testing: JUnit, Mockito
- Integration Testing
- API Testing: Postman, REST Assured

Typical Architecture
- Monolithic (beginner–intermediate)
- Microservices (intermediate–advanced)
- MVC / Layered architecture
- REST-based microservices with frontend SPA

Typical Job Responsibilities
- Develop backend services using Java + Spring Boot
- Build frontend UI using Angular
- Create and consume REST APIs
- Optimize application performance
- Write clean, maintainable, testable code
- Participate in code reviews and Agile ceremonies

📌 Java Full Stack Developer (Bengaluru)
🏢 Infosys
📍 Bengaluru