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Unison Group

Java & Microservices Developer

Unison Group Colombo, Western Province, Sri Lanka

Business Consulting and Services · 11-50 employees

Oct 14
java Mid (2-5 yrs) Full-time Sri Lanka
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About the role

The developer will design, develop, and maintain enterprise-level applications using Java and Spring Boot within a microservices architecture. They will also collaborate with cross-functional teams to ensure high-performance backend services and participate in the full software development lifecycle.

What they look for

Java Spring Boot Microservices Architecture RESTful APIs SQL NoSQL Kafka RabbitMQ Hibernate JPA Git Maven Gradle Docker Kubernetes Agile

Requirements

Candidates must have strong proficiency in Core Java, Spring Boot, and microservices architecture, along with experience in database technologies and messaging platforms. A bachelor's degree in Computer Science or a related field is preferred, alongside experience in Agile development environments.

Full description

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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