Senior Java Backend Developer

Unison Group
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📍 Singapore, Singapore, Singapore

About this role

Role Overview

We are looking for an experienced Senior Java Backend Developer with strong expertise in Java 17+, Spring Boot 3.x, REST API development, and Microservices Architecture. The ideal candidate will be responsible for designing, developing, deploying, and supporting scalable backend applications in a cloud environment. The role requires hands-on experience with AWS services, CI/CD pipelines, database technologies, and production support activities.

Key Responsibilities

  • Design, develop, and maintain high-performance backend applications using Java 17+ and Spring Boot 3.x.
  • Develop and integrate scalable RESTful APIs following industry best practices.
  • Build and maintain applications based on Microservices Architecture.
  • Implement secure, reliable, and scalable backend solutions.
  • Work with AWS cloud services including ECS, EC2, RDS, and CloudWatch for application deployment, monitoring, and troubleshooting.
  • Develop and manage CI/CD pipelines using GitLab and Infrastructure as Code (IaC) practices.
  • Collaborate with DevOps teams to automate build, deployment, and release processes.
  • Work with Oracle and SQL databases, including database design, queries, optimization, and troubleshooting.
  • Perform code reviews, debugging, performance tuning, and application enhancements.
  • Provide Production Support / BAU Support for business-critical applications.
  • Manage incidents, perform root cause analysis (RCA), and implement permanent fixes.
  • Collaborate with cross-functional teams including QA, DevOps, Product Owners, and Business stakeholders.

Required Skills & Experience

  • 6+ years of experience in Java Backend Development.
  • Strong hands-on experience with Java 17+.
  • Extensive experience with Spring Boot 3.x.
  • Strong understanding of REST API development and integration.
  • Proven experience working with Microservices Architecture.
  • Hands-on experience with AWS services:
    • Amazon ECS
    • Amazon EC2
    • Amazon RDS
    • Amazon CloudWatch
  • Experience with GitLab CI/CD pipelines and automation.
  • Knowledge of Infrastructure as Code (IaC) concepts.
  • Strong SQL skills with experience in Oracle databases.
  • Experience in production application support and incident management.
  • Good understanding of Agile development methodologies.
  • Strong analytical and problem-solving skills.

Good to Have

  • Experience with container technologies such as Docker/Kubernetes.
  • Knowledge of cloud security best practices.
  • Experience with monitoring and logging tools.
  • Exposure to enterprise-scale applications and high-availability systems.

Frequently Asked Questions

Is the salary disclosed for the Senior Java Backend Developer position at Unison Group?
The salary for this Senior Java Backend Developer role at Unison Group is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior Java Backend Developer position at Unison Group located?
This Senior Java Backend Developer role at Unison Group is based in Singapore, Singapore, Singapore. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
How do I apply for the Senior Java Backend Developer position at Unison Group?
Click the "Apply Now" button on this page. You will be redirected to Unison Group's official application portal hosted on workable where you can submit your application directly.
When was the Senior Java Backend Developer job at Unison Group posted?
This Senior Java Backend Developer position at Unison Group was posted on Jun 22, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Java Backend Developer
Unison Group
Apply for this role ↗

You'll be redirected to Unison Group's official application page on workable.