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).

Join our growing global team and accelerate your career with us. Apply today.

For more information about this or other opportunities, please contact Mariam Nguyen. Please quote our job reference number 675080.

About us

NTT Ltd. is a global ICT provider, employing more than 40,000 people in a diverse and dynamic workplace, and delivering services in over 200 countries and regions. We partner with organizations around the world to shape and achieve outcomes through intelligent technology solutions. For us, intelligent means data driven, connected, digital, and secure.

NTT is proud to be an equal opportunity employer with a global culture that embraces diversity. We are committed to providing an setting free of unfair discrimination and harassment. We do not discriminate based on age, race, color, sex, religion, national origin, disability, pregnancy, marital status, sexual orientation, gender reassignment, veteran status, or other protected category.

📌 Principal Java Developer (Canberra)
🏢 Ntt
📍 Canberra