2 Principal Java/Bespoke Software Engineer (Developer)

In this role you will support and develop AMSA’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
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).