Sepenuh Masa Senior Java Software Engineer Jobs, in Systems Limited - APAC Kuala Lumpur - Maukerja

Senior Java Software Engineer at Systems Limited - APAC build and maintain backend services using Spring Boot and microservices, contributing to design, quality, and delivery.

Responsibilities:

• Develop and maintain backend services using Spring / Spring Boot
• Build microservices with REST APIs, clear service boundaries, and reusable components
• Implement authentication/authorization, validation, logging, and error handling patterns
• Write unit and integration tests; participate in code reviews and refactoring
• Collaborate with Product, QA, and DevOps for delivery across Dev/Test/Prod environments
• Troubleshoot production issues and optimize performance and reliability
• Support release activities and CI/CD deployments

Requirements:

• Strong hands-on experience in Spring Framework / Spring Boot
• Solid experience in Microservices architecture (service decomposition, communication, resilience basics)
• Strong Java skills including modern Java (Java 8+): streams, lambdas, optional, concurrency fundamentals
• Core Java foundations: OOP, collections, exceptions, generics, multithreading basics
• RESTful APIs, API versioning, backward compatibility
• SQL/NoSQL: PostgreSQL/MySQL/MongoDB (any)
• Testing: JUnit, Mockito (plus integration testing is a bonus)
• Git and standard branching/version control practices
• Understanding of CI/CD (Jenkins/GitHub Actions/Azure DevOps)
• Exposure to DevOps practices and Azure/AWS basics