About the Role

This is a hands-on senior development role focused on upgrading and modernising complex legacy applications within a high-volume government revenue environment.

• Position: Senior Java Developer x 4
• Rate: $900-$930/day + super
• Location: Parramatta, NSW
• Arrangement: Hybrid, 2-3 office days
• Hours: 40 hours per week
• Start: ASAP, subject to police check
• Duration: Until 30 March 2027
• Key ResponsibilitiesDevelop and modernise enterprise Java applications supporting critical revenue services
• Upgrade legacy Java applications and integrate modern services
• Build backend services using Java, Spring Boot and microservices patterns
• Work extensively with Oracle, SQL and PL/SQL
• Develop and maintain REST APIs and system integrations
• Support AWS-based application migration and cloud delivery
• Containerise and deploy applications using Docker
• Troubleshoot performance, integration and production issues
• Conduct code reviews and maintain engineering standards
• Implement automated testing and contribute to CI/CD practices
• Mentor developers and provide technical guidance
• Collaborate with architects, testers, analysts and business stakeholders
• Explore AI-assisted engineering approaches for legacy application analysis and modernisation

Comparable Australian Senior Java roles commonly include REST APIs, CI/CD, automated testing, code reviews, production troubleshooting and cloud/container delivery alongside Java, Spring Boot and AWS.

• About YouStrong commercial experience as a Senior Java Developer or Senior Software Engineer
• Excellent Java development capability, including experience with Java 7/8 or later
• Proven experience maintaining or modernising legacy enterprise applications
• Strong Spring Boot experience
• Hands-on Oracle, SQL and PL/SQL skills
• Experience with JBoss or similar Java application servers
• Practical AWS development experience
• Understanding of microservices and REST API design
• Experience with Git, GitLab or Bitbucket
• Knowledge of Docker and containerised applications
• Experience with Hibernate or Spring Data
• Familiarity with Agile/Scrum delivery
• CI/CD and automated testing experience highly regarded
• AI-assisted development or legacy modernisation experience advantageous
• React experience is desirable but not essential
• Strong communication, problem-solving and stakeholder management skills
• Ability to mentor less experienced developers while remaining hands-on
• Australian Permanent Residency, Australian Citizenship or a valid long-term Australian working visa required
• Full Australian working rights required; sponsorship is not available
• As a mandatory requirement for this contract role, applicants are kindly asked to complete a compliance check and upload their work rights verification at www.charterdiligence.com.au/portal. Incomplete submissions may not be considered. If you have any questions or need assistance with the process, please don’t hesitate to contact our team—we’re here to help.
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