- Design, develop, and implement highly available and scalable RESTful APIs and microservices using Core Java and the Spring Framework (especially Spring Boot).

- Write clean, efficient, well-documented, and testable code following best practices, design patterns (like SOLID), and coding standards.

System Integration :

- Integrate backend services with various databases, third-party APIs, and front-end applications.

- Work with Relational (e.g., MySQL, PostgreSQL, Oracle) and NoSQL (e.g., MongoDB, Redis) databases, including schema design and query optimization (JPA/Hibernate experience is a must).

Quality & Maintenance :

- Conduct thorough testing, including unit tests (e.g., JUnit, Mockito), integration tests, and performance testing to ensure code quality and stability.

- Actively participate in code reviews to maintain high-quality standards and share knowledge within the team.

- Troubleshoot, debug, and upgrade existing systems to optimize performance and resolve production issues.

Collaboration & Process :

- Collaborate effectively with cross-functional teams (Product Managers, DevOps, QA, and Front-end Developers) to understand requirements and deliver technical solutions.

- Participate in Agile/Scrum ceremonies (sprint planning, daily stand-ups, retrospectives).

- Contribute to the continuous improvement of the development process and team capabilities.

Requirements :

- Minimum 5 years of hands-on experience in Core Java.

- Strong foundation in data structures and algorithms.

- Proficiency with multithreading and concurrency.

- Experience with blocking/non-blocking I/O, asynchronous callbacks, backpressure, and flow control.

- Prior experience in developing high-availability, low-latency systems.

- Familiarity with performance tuning, profiling, and benchmarking in distributed environments.