* Day rate contract till June
* Hybrid working with 50% onsite in Parramatta, Sydney
* Paying between $ p/d
We're partnering with a large, purpose-driven organisation within the NSW public sector to engage an experienced Senior Full Stack Java Developer on a contract through to
30 June 2026
.
This role offers the opportunity to work on complex, high-impact systems that support essential services used at scale, with a strong focus on modernisation, cloud adoption and best-practice engineering.
About the role
In this senior, hands-on position, you'll be involved across the full software development lifecycle- from design and development through to testing, implementation and ongoing support.
A key focus will be leading and contributing to large-scale modernisation initiatives, including upgrading legacy Java applications to modern LTS versions and improving performance, security and maintainability.
Key responsibilities
* Lead the migration of legacy applications from Java 6.x to Java 21 LTS
* Refactor code for Java EE to Jakarta EE package migration (javax → jakarta)
* Upgrade and modernise core frameworks including:
* Spring Framework (4.3.x → 6.2.x LTS)
* Hibernate (5.1.x → 6.6.x LTS)
* Apache Camel (2.20.x → 4.10.x)
* Support migration from Elasticsearch to OpenSearch
* Perform code reviews, performance optimisation and troubleshooting
* Ensure solutions align with development standards, security requirements and documented business needs
* Contribute to technical documentation and continuous improvement
* Collaborate within a multidisciplinary Agile team while managing competing priorities
About you
You're a senior developer who enjoys solving complex technical problems and working on meaningful, long-term platforms.
You will bring:
* 5+ years' experience in full-stack Java development
* Strong expertise in Java, Spring, Hibernate and AWS
* Front-end experience with Angular or AngularJS
* Hands-on experience modernising legacy systems and large-scale upgrades
* Experience building and integrating RESTful services
* Knowledge of application servers (Jetty, Tomcat) and integration frameworks
* Solid experience with AWS services (EC2, S3, RDS, API Gateway, Lambda)
* Strong SQL and database modelling skills (Oracle, MySQL or SQL Server)
* Familiarity with OpenSearch / Elasticsearch
* Exposure to Bitbucket, Bamboo and Postman (desirable)
* Clear communication skills and the ability to translate business needs into technical solutions
If you're a senior Java developer looking for a technically challenging, meaningful contract role, we'd love to hear from you.
Apply now with your resume or reach out to
Elizabeth
on
As an equal opportunity employer, we are committed to building inclusive and respectful workplaces, strengthened by diversity and encourage applications from First Nations Peoples, all genders, those from culturally diverse backgrounds, LGBTIQA+ community and people with disability, of all ages and backgrounds. We strive to provide a barrier free and equitable recruitment experience. If you do require an adjustment during the recruitment process, please contact your consultant via the phone number or email above.