Senior Software Engineer - 9 months

About Leidos Australia

At Leidos Australia, our work goes beyond a job title. We design, build, operate and support the systems, services and capabilities that help protect and advance the Australian way of life.

Backed by a global organisation of more than 40,000 people, our Australian team of around 2,000 has partnered with government, defence and national security customers for more than 30 years. We deliver mission-critical solutions where reliability, trust and purpose matter.

Leidos is a destination for people who want their work to have purpose, their contribution to be recognised, and their career to grow without needing to fit a single mould. Meaningful work is supported by benefits, flexibility and career pathways that help you grow while balancing life outside work. This includes:

• Flex Your Way – Tailor work to your life with options including Life Days (up to 12 extra days off per year), part-time arrangements, job sharing, and compressed hours.

• Wellbeing That Matters – Free access to Headspace and MeQuilibrium, plus dedicated wellness spaces to support your mental, physical, and emotional wellbeing.

• Learn Without Limits – Access over 120,000 on-demand courses, alongside technical, project management, leadership, and professional development opportunities.

• Work That Makes an Impact – Contribute to nationally significant projects that matter, solve complex challenges, and accelerate your career through unique growth opportunities.

• Build Your Future – Whether you're deepening technical expertise or preparing for leadership, we'll invest in your development every step of the way.

• And Much More – These are just a few of the ways we invest in our people and help them thrive.

About the Team

Our GEOSPACES team is instrumental in developing and maintaining innovative technologies that tackle evolving challenges within the intelligence community. Additionally, these roles will focus on designing, integrating, and validating complex tenant environments tailored to specific use cases, supporting critical customer objectives.

The Opportunity

We are seeking a Senior Software Engineer to join our Defence ICT team on a 9-month maximum-term contract, with the potential for extension. In this role, you will provide technical leadership across the design, development and integration of software within a complex Defence ICT delivery program.

You will work closely with architects, system integrators and project teams to ensure software solutions are aligned to architecture, meet integration requirements and are delivered to production-ready standards.

Key Responsibilities: -

• Lead the design, development and integration of software components aligned to system requirements and architectural design

• Provide technical guidance and mentoring to junior software engineers

• Ensure software implementation aligns with architecture, integration requirements and delivery standards

• Oversee development of key capabilities including data processing, synchronisation and core services

• Support system integration across software, infrastructure and networking components

• Lead verification, validation and testing activities, ensuring delivery meets acceptance criteria

• Drive fault analysis and remediation to achieve system readiness and performance standards

• Contribute to technical documentation and support transition and handover to operations

• Collaborate with multidisciplinary teams to deliver integrated system outcomes

About You

Essential for this role: -

• Proven experience in software engineering within complex ICT environments (Defence or government highly regarded)

• Strong programming expertise (e.g. Java, Python, C++ or similar)

• Demonstrated experience leading or mentoring engineering teams

• Experience working across full software lifecycle (design, build, integration, test and deployment)

• Strong understanding of system integration and verification processes

• Ability to troubleshoot and resolve complex technical issues

• Strong stakeholder communication and collaboration skills

Advantageous, but not essential: -

• Experience within Defence or national security environments

• Exposure to geospatial, data processing or distributed systems

• Experience working in secure or highly governed environments

• Familiarity with DevSecOps, CI/CD pipelines or containerised technologies

This role requires the successful applicant to be an Australian citizen and hold, or be eligible to obtain NV2 security clearance and be successful for DISA.

If this role interests you, we encourage you to apply. We value different experiences and are interested in the capability and potential you could bring.

What to Expect When You Apply

Our hiring process is designed to be straightforward, respectful and easy to navigate. If your skills, experience and qualifications look aligned with the role, our Talent Acquisition team will contact you to discuss the next stage. You can expect:

• An initial conversation with our Talent Acquisition team

• An interview with the hiring manager or interview panel

• Any role-specific assessment, technical discussion or customer step required for the position

We’ll let you know what to expect before each stage, including who you’ll meet and how to prepare. If you need any adjustments or support during the process, please let us know.

Ready to explore what’s possible?

If this sounds like a role where you can make an impact and continue to grow, we’d like to hear from you. Please apply via the “Apply Now” button with your resume. If you have any questions about the role or recruitment process, please contact Michael Pua, Talent Acquisition.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:

Pay Range:

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.