Java Software Engineer

Application closing date: Sunday, 09 August 2026 • 11:59pm, Canberra time Estimated start date: Tuesday, 01 September 2026 Location of work: VIC Working arrangements: Hybrid working arrangements considered Length of contract: 12 months Contract extensions: 2 x 12 months Security clearance: Must have Baseline at commencement Rates: $110 - $130 per hour (inc. super) In this role you will support and develop the Australian Maritime Safety Authority's (AMSA) life critical application NEXUS. NEXUS is used by AMSA's Rescue Response Centre Australia (RCCA) to help coordinate assets in maritime and aviation search and rescue incidents and triage and respond to pollution events.

You will support the following Nexus users

RCCA Staff (RCCA). RCCA Intelligence Operators. NET, Java, AWS, Oracle PL/SQL, ArcGIS) providing NEXUS users the capability to perform their operational business functions. This role will focus on supporting, maintaining and developing solutions for NEXUS cloud and back-end Java/AWS/Oracle components. NEXUS back-end comprises of multiple Java components and Java EE JMS components used for data integration and message processing. It also consists of AWS cloud components used to provide external integrations with AMSA’s external clients/partners.

NET developers/SME’s with years of business knowledge that all contribute to AMSA’s in-house support of Nexus.

Your responsibilities will include

Develop enterprise-grade software using Java and Oracle technologies Develop / maintain web-based UI using ReactJS, CSS and HTML Design data models, translate to physical data models and implement using Oracle Database Implement CRUD operations on the database using Java Object-Relational Mapping frameworks Produce and maintain detailed design artefacts & technical specifications Create and work with RESTful OpenAPI specifications, SOAP WSDLs, XML Schemas Develop and maintain DevOps workflows using Jenkins, Git and Maven & Ant Perform and build Nexus software releases following established processes Providing advice and support for Applications Director & CIO Provision of on-call services as part of a team roster (calls are rare one per year) Key requirements: Excellent verbal and written communication skills.

At least 8 years Java experience, enterprise design patterns, JPA, Hibernate ORM, JEE an advantage, reactive programming an advantage. Java Web service development, SOAP and REST APIs, OpenAPI/XSD Schemas, XML/JSON, Spring/SpringBoot. Unix/Linux, Bash. Maven lifecycle management, Continuous Integration, Unit and System Integration testing. Major database experience, including data modelling, stored procedures. Oracle preferred. Willingness to be 24x7 on-call. Historically calls escalated to the dev team between 10pm and 6am are rare one per year.

AWS development (EC2, Lambdas, API Gateway, S3/SQS, Cloud Formation).

Essential criteria Programming/software development

Level 6 (SFIA) - Develops organisational policies, standards, and guidelines for software construction and refactoring. Plans and leads software construction activities for strategic, large and complex development projects. Adapts or develops new methods and organisational capabilities and drives adoption of, and adherence to policies and standards. HOW TO APPLY Please provide an updated CV (a maximum of 3-5 pages) to reflect your suitability to the role based on the job description.

You will also need to complete responses to the essential and desirable criteria which is no more than 5000 characters for each response. Your application will be reviewed based on ability to demonstrate, or potential to develop, the capabilities required.