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Unison Group

JAVA Software Engineer

Unison Group
Singapore · Contract · Mid-Senior
Position Overview

We are seeking an experienced and driven Software Engineer (Java) to design, develop, and maintain scalable enterprise-grade applications and backend systems. The successful candidate will play a key role in software architecture, system integration, infrastructure automation, and application reliability while working closely with internal engineering teams and external vendors.

This role requires strong expertise in Java-based application development, microservices architecture, cloud-native technologies, DevOps practices, and secure software engineering.

Key Responsibilities

Software Development & Engineering

  • Lead and implement software development best practices, including Continuous Integration (CI), Continuous Delivery (CD), and automated deployment processes to improve software quality and delivery speed
  • Design, develop, and maintain scalable backend systems, APIs, applications, and data structures
  • Build and maintain both front-end interfaces (React/Angular) and back-end services using Java technologies
  • Design and oversee software architecture while considering both functional and non-functional requirements such as scalability, resiliency, security, and performance
  • Analyse technical trade-offs and make informed engineering decisions aligned with business and operational goals

Testing, Security & Reliability

  • Develop and execute comprehensive testing strategies, including:
    • Functional testing
    • Performance testing
    • Security testing
    • Integration testing
  • Implement secure coding standards and application security testing practices
  • Ensure software solutions are robust, fault tolerant, and production-ready
Infrastructure & DevOps

  • Define and implement Infrastructure as Code (IaC) practices
  • Integrate systems and components across the organisation to support seamless operations
  • Manage containerised and cloud-native deployments using Docker, Kubernetes, OpenShift, and OpenStack
  • Automate operational processes to improve efficiency and reduce release turnaround time
  • Design and maintain CI/CD pipelines and job scheduling integrations

Code Review & Vendor Management

  • Perform code reviews and provide recommendations to software engineers and external vendors
  • Conduct progressive manual source code reviews delivered by vendors
  • Verify implementation quality and ensure solutions comply with approved designs and standards
  • Support technical governance and ensure engineering best practices are consistently applied

Monitoring & Operations

  • Set up and integrate observability, monitoring, and alerting platforms such as Grafana and ELK Stack
  • Manage and prioritise operational backlogs and technical support activities
  • Ensure system resiliency, availability, and operational stability

Experience

Required Qualifications & Experience

  • Minimum 5 years of proven experience in software engineering teams and enterprise technology projects
  • Hands-on experience designing and implementing Java applications in enterprise environments
  • Proven experience working with microservices architecture and RESTful APIs

Technical Skills

Backend & Middleware

  • Strong proficiency in:
    • Java
    • Spring/Spring Boot
    • Microservices architecture
    • RESTful web services
    • SQL
    • Shell scripting
  • Experience with:
    • RHEL (Red Hat Enterprise Linux)
    • JBoss EAP
    • Maven
    • Oracle Database
    • Fault-tolerant infrastructure concepts
Cloud & Containerisation

  • Experience with cloud platforms and containerisation technologies, including:
    • Docker
    • Kubernetes
    • OpenShift
    • OpenStack
Integration & Interfaces

  • Strong understanding of file transfer mechanisms, interfaces, resiliency, and connectivity protocols such as:
    • REST
    • SFTP
    • MQ
  • Experience integrating:
    • Autosys
    • Job scheduling systems
    • CI/CD platforms
    • Data warehouses
    • Document Management Systems
Monitoring & Observability

  • Experience with observability and monitoring tools, including:
    • Grafana
    • ELK Stack
    • Logging and alerting systems
Front-End Development

  • Working knowledge of:
    • React
    • Angular
Database & Security

  • Strong understanding of database design and optimisation
  • Experience implementing secure coding practices and application security testing

Key Skills

Ranked by relevance

java cloud microservices continuous integration infrastructure as code continuous delivery kubernetes grafana docker devops cicd elk
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Country Guide

Singapore

High-pay global hub in Asia

Posted
May 19, 2026
Type
Contract
Level
Mid-Senior
Location
Singapore
Company
Unison Group

Industries

IT Services IT Consulting

Categories

Information Technology

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