Java Full Stack Developer

Java Spring Boot Backend Developer

Role Summary

We are looking for a Java Spring Boot Backend Developer who can design, develop, and support scalable backend services and APIs. The role is primarily backend-focused; however, the candidate should also have a working knowledge of React to collaborate effectively with frontend teams and handle minor UI tasks when required.

Key Responsibilities

1. Design, develop, test, and maintain RESTful APIs and backend services using Java and Spring Boot.
2. Implement business logic, validations, exception handling, and ensure high performance and responsiveness.
3. Work with Spring modules such as Spring MVC, Spring Data JPA, and Spring Security.
4. Develop and optimize database schemas, queries, and integrations with SQL/NoSQL databases.
5. Build and maintain integrations with external systems, including third-party APIs, message brokers, and internal services.
6. Participate in architecture and design reviews and produce technical documentation.
7. Ensure code quality through unit testing, integration testing, code reviews, and CI/CD pipelines.
8. Support production issues, perform root cause analysis, and implement preventive fixes.
9. Collaborate with frontend developers, understand React component flow and API contracts, and troubleshoot UI/API integration issues.
10. Implement minor UI changes or proof-of-concept (POC) solutions in React, when required.

Required Skills (Must Have)

Backend (Core)

1. Strong hands-on experience in Java (8/11/17) and Spring Boot.
2. Solid understanding of REST APIs, HTTP fundamentals, JSON, and API versioning.
3. Experience with Spring Data JPA/Hibernate, transactions, lazy/eager loading, and pagination.
4. Strong knowledge of SQL (PostgreSQL/MySQL/Oracle) and query optimization.
5. Familiarity with authentication and authorization concepts such as JWT, OAuth2, RBAC, and secure coding practices.
6. Experience writing tests using JUnit 5, Mockito, and integration testing frameworks.
7. Understanding of microservices architecture fundamentals, including service boundaries, configuration management, and resiliency principles.

Development Practices

1. Proficiency with Git, code reviews, and branching strategies.
2. Familiarity with CI/CD tools such as Jenkins, GitLab CI, GitHub Actions, or Azure DevOps.
3. Strong debugging and performance troubleshooting skills, including log analysis, profiling, and thread dump analysis.

React (Working Knowledge)

1. Basic to intermediate understanding of React, including components, props, state management, and hooks.
2. Ability to consume REST APIs from React applications and handle common integration challenges such as CORS, authentication headers, and error handling.
3. Familiarity with modern JavaScript/TypeScript tooling, including npm/yarn and build processes.

Preferred Qualifications

1. Experience with Docker and Kubernetes.
2. Exposure to cloud platforms such as Azure, AWS, or GCP.
3. Experience with message brokers such as Kafka or RabbitMQ.
4. Knowledge of monitoring and observability tools such as Splunk, ELK, Grafana, or Prometheus.
5. Familiarity with Agile/Scrum development methodologies.

Experience Required

4 to 8 Years (can be adjusted based on business requirement).

Education

Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field