Phonon Communications - Java Developer - Spring Frameworks

About the Role :

We are looking for a skilled and experienced Java Developer with strong expertise in Spring Frameworks to join our backend engineering team. You will be responsible for building and maintaining scalable, secure, and high-performance server-side applications using the Spring ecosystem, including Spring Boot, Spring MVC, Spring Security, Spring Data JPA, and Spring Cloud.

Key Responsibilities :

- Design and develop Java-based backend services using Spring Boot and other Spring modules.

- Implement RESTful APIs, microservices, and business logic with clean and modular code.

- Optimize performance and scalability of server-side applications.

- Participate in system design discussions and contribute to architecture decisions.

- Develop scalable and maintainable components using object-oriented and functional programming principles.

- Implement design patterns and ensure adherence to SOLID principles.

- Work with SQL (MySQL, PostgreSQL, Oracle) and NoSQL (MongoDB, Redis) databases.

- Use Spring Data JPA, Hibernate for ORM, and handle complex data relationships and queries.

- Write and maintain unit tests, integration tests, and mock-based testing.

- Use tools like JUnit, Mockito, and TestNG to ensure code quality.

- Collaborate with DevOps for CI/CD pipeline integration, using tools like Jenkins, Git, Docker.

- Troubleshoot production issues and improve observability using logs and monitoring tools

(e.g., ELK stack, Prometheus, Grafana).

Required Skills & Experience :

Technical Skills :

- 5-7 years of experience in Java application development.

- Proficient in REST API development, JSON, HTTP protocols.

- Solid understanding of multithreading, collections, exception handling, and JVM internals.

- Familiarity with Kafka, RabbitMQ, or other messaging systems.

- Experience with cloud platforms like AWS, GCP, or Azure.

- Containerization using Docker, orchestration with Kubernetes is a plus.

- Knowledge of API documentation tools like Swagger/OpenAPI.