Java & Microservices Developer

Unison Group · Colombo

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Job Summary

We are looking for an experienced Java & Microservices Developer with strong expertise in Java, Spring Boot, and microservices architecture. The ideal candidate will be responsible for designing, developing, testing, and maintaining scalable, high-performance applications while collaborating with cross-functional teams to deliver robust software solutions.

Key Responsibilities

• Design, develop, and maintain enterprise-level applications using Java and Spring Boot.
• Build, deploy, and manage RESTful APIs and microservices-based applications.
• Develop scalable, reliable, and high-performance backend services.
• Implement application security, authentication, authorization, and data validation.
• Work with databases, including SQL and NoSQL, for efficient data storage and retrieval.
• Integrate microservices with messaging platforms such as Kafka or RabbitMQ.
• Write clean, reusable, and maintainable code following industry best practices.
• Perform unit testing, integration testing, debugging, and performance optimization.
• Collaborate with architects, business analysts, QA teams, and DevOps engineers.
• Participate in code reviews, technical discussions, and Agile/Scrum ceremonies.
• Support application deployment, production troubleshooting, and continuous improvement.

Required Skills

• Strong proficiency in Core Java, OOP concepts, Collections, Multithreading, and Exception Handling.
• Hands-on experience with Spring Boot, Spring MVC, and Spring Framework.
• Strong understanding of Microservices Architecture and distributed systems.
• Experience in designing and developing RESTful APIs.
• Knowledge of Hibernate/JPA and database technologies such as Oracle, MySQL, or PostgreSQL.
• Experience with messaging technologies such as Kafka or RabbitMQ.
• Familiarity with Git, Maven/Gradle, and CI/CD pipelines.
• Experience with unit testing frameworks such as JUnit and Mockito.
• Knowledge of Docker, Kubernetes, and cloud platforms (AWS/Azure/GCP) is an advantage.
• Understanding of design patterns, SOLID principles, and application security.
• Experience working in Agile development environments.

Preferred Qualifications

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• Experience with cloud-native application development.
• Familiarity with monitoring and logging tools such as ELK, Grafana, or Prometheus.
• Strong analytical, problem-solving, and communication skills.

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