Java Back End Developer

Kumaran Systems; Chennai District; Presencial; INR 2.400.000 - 4.200.000; Jornada completa

Descripción de la vacante

Kumaran Systems in India is seeking a senior Java backend developer to design, develop, and maintain backend services using Java and Spring Boot. You will build microservices-based architectures for scalable enterprise applications and collaborate with architects, frontend engineers, DevOps, and QA to deliver robust, secure solutions.

The role focuses on RESTful APIs, microservices with domain-driven design, databases (SQL/NoSQL), Spring Security/OAuth2/JWT, CI/CD pipelines with Docker and

Formación

• 7+ years of experience in Java backend development.
• Strong hands-on experience with Java 17+ and Spring Boot.
• Experience designing microservices and REST APIs.
• Relational databases (MySQL, PostgreSQL, Oracle) and at least one NoSQL DB.
• Spring Security, OAuth2/JWT implementation knowledge.
• Experience with CI/CD tools and version control (Git).
• Docker and Kubernetes experience preferred.

Responsabilidades

• Develop and maintain RESTful APIs and backend services using Spring Boot.
• Design and implement microservices with proper separation of concerns.
• Integrate services with databases and external systems.
• Implement security, authentication, and authorization (Spring Security, OAuth2/JWT).
• Optimize performance, scalability, and reliability.
• Participate in requirement analysis, solution design, and estimation.
• Write clean, tested code and maintain technical documentation.
• Collaborate in Agile/Scrum ceremonies and provide L3 production support.
• Work with CI/CD pipelines and containerization for deployments.

Conocimientos

Java backend development

Java 17+

Spring Boot

Microservices architecture

REST APIs

Relational databases

NoSQL databases

Spring Security

OAuth2/JWT

CI/CD tools

Docker

Kubernetes

JUnit/Mockito

Git

Herramientas

Kafka

RabbitMQ

Descripción del empleo

Job Description:

• Design, develop, and maintain backend services using Java and Spring Boot.
• Build and enhance microservices-based architectures for scalable enterprise applications.
• Work closely with architects, frontend engineers, DevOps, and QA to deliver robust, secure, and highperforming solutions.

Key Responsibilities:

• Develop and maintain RESTful APIs and backend services using Spring Boot.
• Design and implement microservices with proper separation of concerns and domain-driven design.
• Integrate services with databases (SQL/NoSQL) and external systems.
• Implement security, authentication, and authorization (Spring Security, OAuth2/JWT).
• Optimize application performance, scalability, and reliability.
• Participate in requirement analysis, solution design, and estimation.
• Write clean, maintainable, and welltested code following best practices.
• Create and maintain technical documentation for services and APIs.
• Collaborate in Agile/Scrum ceremonies (daily stand-ups, sprint planning, retrospectives).
• Troubleshoot and resolve production issues; provide L3 support as needed.
• Work with CI/CD pipelines and containerization (e.g., Docker, Kubernetes) for deployments.
• Ensure proper logging, monitoring, and alerting for microservices.

Required Skills & Experience:

• 7+ years of experience in Java backend development.
• Strong hands-on experience with:
• Java 17+
• Spring Boot, Spring MVC, Spring Data JPA
• Microservices architecture
• Experience in:
• Building and consuming REST APIs
• Relational databases (e.g., MySQL, PostgreSQL, Oracle)
• At least one NoSQL database (MongoDB, Redis, etc.) preferred
• Good understanding of:
• Spring Security, OAuth2/JWT
• Message queues / event-driven architecture (Kafka, RabbitMQ, etc.)
• Unit and integration testing (JUnit, Mockito, etc.)
• Familiarity with:
• CI/CD tools (Jenkins, GitLab CI, Azure DevOps, etc.)
• Version control (Git)
• Docker, Kubernetes (preferred)