Middleware Engineer

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

You’ll join a team where people work with integrity, inclusion, innovation, agility, collaboration and commitment. In practice, that means sharing ownership, solving complex problems together and staying connected to the customer context, the purpose behind the work and how each role contributes to meaningful outcomes.

We deliver secure, resilient and innovative technology services that enable Defence enterprise and warfighting capabilities across multiple classified domains and networks. We provide world-class ICT operations and agile digital modernisation using advanced analytics, automation, hybrid cloud, DevSecOps, Infrastructure as Code, cybersecurity and AI to optimise highly complex, mission-critical environments.

The Opportunity

We are seeking an IBM Middleware Engineer to join our team, working within complex, multi-vendor environments hosted on AIX. In this role, you will be responsible for the deployment, administration and optimisation of IBM middleware technologies, including WebSphere Application Server, WebSeal, ISAM, ACE and WebSphere Liberty.

You will collaborate with cross-functional teams to help ensure secure, reliable and high-performing middleware solutions that support critical business applications.

The position will only be open to Aboriginal or Torres Strait Islander applicants. The filling of this position is intended to constitute an equal opportunity measure under section 8(1) of the Racial Discrimination Act 1975 (Cth).*

You will:

• Install, configure and maintain IBM middleware products including WebSphere Application Server, WebSeal, ISAM, ACE and WebSphere Liberty within AIX environments.
• Troubleshoot middleware issues, monitor system performance, support capacity planning and optimise middleware platforms for availability and performance.
• Implement and manage security policies, authentication and authorisation using WebSeal and ISAM.
• Develop and maintain automation scripts and Infrastructure as Code for middleware deployment and configuration using tools such as Ansible, Puppet or similar.
• Collaborate with application, infrastructure and security teams, maintain technical and operational documentation, contribute to disaster recovery activities, and mentor junior team members.

About You

We are looking for someone who brings judgement, curiosity and a collaborative approach to work that matters.

You will bring:

• An interest in developing technical experience across middleware administration, automation, security integration and performance tuning.
• Ability to develop stakeholder management, communication and complex problem-solving skills, with an adaptable approach to changing requirements.
• A commitment to continuous learning, with certifications such as IBM Certified System Administrator – WebSphere or related credentials highly regarded.

This role requires the successful applicant to be an Australian citizen, gain and be able to maintain a Baseline security clearance.

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.

Certain roles may be subject International Traffic in Arms Regulations (ITAR) requirements which may limit persons who hold dual nationality with certain proscribed countries from accessing material, or in the case of dual Australian-U.S citizens, may require the candidate to obtain a U.S. Persons Abroad authorisation from the U.S DDTC.

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

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 [email protected].

* s.27 of the Discrimination Act 1991 (ACT) / s.105 of the Anti-Discrimination Act 1991 (Qld) / s.65 of the Equal Opportunity Act 1984 (SA) / s.12 of the Equal Opportunity Act 2010 (Vic) and s 8(4) of the Charter of Human Rights and Responsibilities Act 2006 (Vic).

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:

$96,300.00-$120,400.00

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.