Charter Diligence Consulting and Recruitment – Sydney CBD NSW
$900-$930/day + Super
ASAP to March ****
Parramatta, NSW | Hybrid Working
Our Client
Our client is a major NSW Government agency responsible for revenue administration and services that support the NSW community. The organisation operates large-scale, business-critical technology platforms and is investing in digital and cloud transformation across its services.
Four Senior Java Developers are required for a major program modernising legacy revenue and tax collection applications. The environment combines established Java and Oracle platforms with Spring Boot, AWS and modern engineering practices.
Why Contract With Us
At Charter Diligence, we go beyond just placement — we support our contractors with practical benefits that reflect real‐life needs. All contractors engaged through us have access to early cash advances on approved timesheets, offering flexibility in cases of unforeseen expenses or cash flow challenges. Unlike traditional labour hire providers, we understand that life doesn't always align with a pay cycle — and we're here to help when it matters most. Well, ask around if they're already a Charter Diligence Contractor — chances are, they're already benefiting from the support we provide.
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 ****
Key Responsibilities
Develop 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 You
Strong 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
Solid 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 . 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.
Important
Due to the high volume of applications and the limited submission timeframe, we may not be able to contact all applicants. This is not a reflection of interest, but a result of operational constraints. As part of mandatory government contract requirements, priority will be given to candidates who have completed all necessary compliance checks. For applicants with privacy concerns regarding work rights verification submission, documents may be presented in person at our local offices for sighting.
Charter Diligence is an equal‐opportunity employer committed to diversity and inclusion. We welcome applications from all qualified individuals, regardless of their background. Join us and be part of a team that is shaping the future of the industry.
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📌 4X Senior Java Developer | Nsw Government (New South Wales)
🏢 Charter Diligence Consulting and Recruitment
📍 New South Wales