Principal Java Developer (Security Clearance)

XPT Software Australia; Canberra; On-site; AUD 120,000 - 170,000; Full time

Job summary

XPT Software Australia is seeking a Principal Java / Bespoke Software Engineer (Developer) to support and enhance our NEXUS-based systems used by AMSA's RCCA. You will contribute to backend Java, AWS, and Oracle components, and collaborate with a small team of skilled Java/NET SME's.

The role focuses on enterprise-grade development, REST/SOAP services, data modelling in Oracle, and DevOps using Jenkins, Git, and Maven. You will provide on-call support and advise the Applications Director & CIO.

Qualifications

• 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).

Responsibilities

• 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).

Skills

Communication skills

Java development

Unix/Linux Bash

Maven CI

OpenAPI/REST

Tools

Jenkins

Git

Maven/Ant

Oracle Database

AWS

ReactJS

SOAP/ WSDL

OpenAPI/Swagger

Job description

Position: Principal Java / Bespoke Software Engineer (Developer)

Security clearance: Must be able to obtain Baseline

No. of Positions (Open): 02

Job details

In 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.

You Will Support The Following Nexus Users

• RCCA Staff (RCCA).
• RCCA Intelligence Operators.

NEXUS 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.

Your 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.

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 Duties And Responsibilities

Essential 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).

Criteria

Essential Criteria

• 1. 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.