Principal Java/Bespoke Software Engineer (Developer)

On Q Recruitment; Canberra; On-site; AUD 170,000 - 230,000; Full time

Job summary

On Q Recruitment is seeking an experienced Principal Java/Bespoke Software Engineer to join a high-performing technology team supporting a mission-critical platform for a Federal Government client in Canberra.

You'll design, develop and operate enterprise solutions across Java, AWS and Oracle, participate in DevOps, and provide technical guidance, with Australian citizenship and baseline security clearance required.

Qualifications

• Senior software engineer with extensive enterprise experience.
• Experience delivering complex enterprise solutions in large-scale environments.
• Proficient in Java, AWS, Oracle and DevOps practices.

Responsibilities

• Develop and maintain enterprise-grade Java applications and integrations
• Design scalable cloud-based solutions using AWS
• Support Oracle database development and optimisation
• Contribute to DevOps, CI/CD and release management
• Produce technical documentation and expert advice
• Participate in a shared on-call roster for critical applications

Skills

Java

Enterprise design patterns

JPA/Hibernate

Spring/SpringBoot

AWS

Oracle PL/SQL

REST APIs

SOAP APIs

OpenAPI

Git

Jenkins

Maven

DevOps practices

On-call

Communication

Tools

Jenkins

Git

Maven

Job description

We're seeking an experienced Principal Java/Bespoke Software Engineer to join a high-performing technology team supporting a mission-critical operational platform.

About the Agency

Our client is a large Federal Government agency delivering critical services to Australians. The organisation operates complex enterprise systems and invests heavily in modern technology platforms to support nationally significant operations.

Key Responsibilities

As a Principal Engineer, you'll play a key role in the ongoing support, maintenance and enhancement of a complex enterprise application environment. Working alongside highly skilled developers and subject matter experts, you will contribute to the design, development and operation of business-critical solutions across Java, AWS and Oracle technologies.

• Developing and maintaining enterprise-grade Java applications and integrations
• Designing and implementing scalable cloud-based solutions using AWS
• Supporting Oracle database development, integration and optimisation
• Contributing to DevOps, CI/CD and release management activities
• Producing technical documentation and providing expert technical advice
• Participating in a shared on-call support roster for critical applications

About You

You are a senior software engineering professional with extensive experience delivering complex enterprise solutions in large-scale environments. You enjoy solving challenging technical problems and are comfortable operating as both a hands-on developer and trusted technical adviser.

You will bring:

• Min 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.
• Experience with AWS services such such as EC2, Lambda, API Gateway, S3 and SQS
• Strong Oracle database and PL/SQL capability
• Experience with REST and SOAP integrations, OpenAPI and enterprise messaging
• Working knowledge of Jenkins, Git, Maven and DevOps practices
• Willingness to be 24x7 on-call (rare, approx. once per year).
• Excellent written and verbal communication skills
• MUST HAVE Australian Citizenship and Baseline Security Clearance

If you're looking for a long-term opportunity where your work will genuinely make a difference, we'd love to hear from you.