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Unison Group

Java Backend Engineer

Unison Group
Singapore · Full-time · Not Applicable

  • We are looking for a Senior Java Backend Engineer to support and enhance our API and microservices ecosystem in a cloud-native AWS environment. This role focuses on BAU (Business-As-Usual) support, ensuring system stability, performance, and continuous improvement of backend services
  • Provide BAU support for Java-based microservices and APIs, ensuring high availability and reliability
  • Design, develop, and maintain scalable microservices using Java (17+) and Spring Boot (3.x)
  • Manage and support cloud infrastructure on AWS (ECS, EC2, RDS)
  • Monitor system performance and troubleshoot issues using tools like Grafana and CloudWatch
  • Implement and maintain CI/CD pipelines using GitLab, AWS CodeCommit, and CodePipeline
  • Collaborate with cross-functional teams to resolve production issues and deploy enhancements
  • Support integration with identity and access management systems (Okta)
  • Work with MuleSoft for API integrations and middleware support
  • Ensure adherence to best practices in coding, security, and performance optimization
  • Participate in incident management, root cause analysis, and continuous improvement initiatives

Requirements

  • Good experience in Java backend development
  • Strong expertise in Java 17+ and Spring Boot 3.x
  • Proven experience in building and supporting microservices and REST/GraphQL APIs
  • Hands-on experience with AWS services: ECS, EC2, RDS
  • Experience with Infrastructure as Code (IaC)
  • Proficiency in CI/CD pipelines using GitLab, AWS CodeCommit, and CodePipeline
  • Strong knowledge of SQL, Oracle and relational databases
  • Experience with monitoring and logging tools such as Grafana and AWS CloudWatch
  • Good experience with Okta for authentication/authorization and MuleSoft for API integration

Key Skills

Ranked by relevance

aws java microservices spring boot grafana gitlab cloud cicd ecs identity and access management infrastructure as code high availability oracle sql
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Posted
Jun 13, 2026
Type
Full-time
Level
Not Applicable
Location
Singapore

Industries

IT Services IT Consulting

Categories

Information Technology

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