Job Description
Position: Principal Java / Bespoke Software Engineer (Developer)
Security clearance: Must be able to obtain Baseline
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No. of Positions (Open): 02
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Job details
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nIn this role you will support and develop Client's 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. n
nYou will support the following Nexus users:n
n• RCCA Staff (RCCA).n
n• RCCA Intelligence Operators.n
nNEXUS System consists of multiple components built on various technologies/languages (.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.n
nYour candidate will work in a small team of highly skilled Java and .NET developers/SME's with years of business knowledge that all contribute to AMSA's in-house support of Nexus.n
nYour responsibilities will include:n
n• Develop enterprise-grade software using Java and Oracle technologiesn
n• Develop / maintain web-based UI using ReactJS, CSS and HTMLn
n• Design data models, translate to physical data models and implement using Oracle Databasen
n• Implement CRUD operations on the database using Java Object-Relational Mapping frameworksn




n• Produce and maintain detailed design artefacts & technical specificationsn
n• Create and work with RESTful OpenAPI specifications, SOAP WSDLs, XML Schemasn
n• Develop and maintain DevOps workflows using Jenkins, Git and Maven & Antn
n• Perform and build Nexus software releases following established processesn
n• Providing advice and support for Applications Director & CIOn
n• Provision of on-call services as part of a team roster (calls are rare one per year)n
Key duties and responsibilities
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nEssential Skills Required • 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).n
Criteria
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Essential criteria
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n• 1. Programming/software development: Level 6 (SFIA)n
nDevelops 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 recent methods and organisational capabilities and drives adoption of, and adherence to policies and standards.n

📌 Principal Java Developer (Security Clearance) (Australia)
🏢 XPT Software Australia Pty
📍 Australia