12month contract + 2x12 months extension options

Canberra location Our client is seeking a highly skilled Principal Java Developer to lead the design and development of Nexus application. 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 the department’s external clients/partners.

Key responsibilities 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) Essential Skills Required

Excellent verbal and written communication skills.

Extensive 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). *Please note that only shortlisted candidates will be contacted

📌 Principal Java Developer (Canberra)
🏢 Ntt Data
📍 Canberra