Principal Java Software Engineer (LC15)

Canberra (ACT) Based | Requires an active AGSVA Baseline Clearance

About Us

IAG Defence & National Security (DNS) is part of IAG, a specialist advisory firm supporting complex infrastructure, Defence and national security programs across Australia. Our DNS team works closely with Commonwealth agencies and industry partners to deliver specialist expertise into nationally significant programs. Our success depends on our ability to identify, engage and mobilise highly specialised talent quickly and effectively. IAG is recognised as a Veteran Friendly Employer under the Veteran Employment Program.

The Role

We're looking for a Principal Java Software Engineer to join a small, highly skilled team supporting and developing a life-critical government application used to coordinate search and rescue and pollution response incidents. You'll work across the back-end Java, AWS and Oracle components that keep this system running, alongside experienced Java and .NET developers.

This is a great opportunity for a senior developer who enjoys deep technical ownership, working across the full stack from data modelling through to cloud integrations.

Key Responsibilities

• Develop and maintain enterprise-grade software using Java and Oracle technologies
• Design and implement data models, and build RESTful/SOAP web services and API specifications
• Develop and maintain DevOps workflows using Jenkins, Git, Maven and Ant
• Produce and maintain detailed design artefacts and technical specifications
• Provide technical advice and support to leadership, including participation in an on-call roster

Required

• Current AGSVA Baseline security clearance
• At least 8 years' Java experience, including enterprise design patterns and Spring/SpringBoot
• Experience with major database platforms and data modelling, Oracle preferred
• Experience with AWS development (EC2, Lambdas, API Gateway, S3/SQS, CloudFormation)
• Willingness to participate in a 24/7 on-call roster and strong written/verbal communication skills

What We Offer

With offices in Perth, Brisbane, Melbourne, Sydney and Canberra, we're a tight-knit team working across some of Australia's most critical Defence and national security programs. We value expertise, collaboration and flexibility, providing our people with opportunities to contribute to meaningful and technically challenging projects.

We can offer great work, great people, great culture, great conditions, and an all-round great time whilst you continue building a rewarding career in the Defence and national security sector. As part of IAG, you'll be joining a team of more than 250 professionals.

Most opportunities advertised by IAG Defence & National Security are subject to client approval, security validation and contractual confirmation. Employment or engagement will only be offered following successful client acceptance and completion of all required pre-engagement checks and onboarding activities.