Middleware Engineer

Leidos Australia; Canberra; On-site; AUD 150,000 - 190,000; Full time

Benefits offered by this job

Life Days

Headspace access

MeQuilibrium access

Professional development

Growth opportunities

Job summary

Leidos Australia is seeking a Senior Middleware Engineer to implement, manage and optimise enterprise middleware platforms that enable reliable integration and communication between applications, databases, services and external systems.

This role provides senior technical expertise across middleware infrastructure, application integration, APIs, messaging, web services, automation, security, performance and high availability.

Qualifications

• Extensive experience in middleware engineering and integration.
• Strong knowledge of APIs, REST, and messaging.
• Proficient in Linux/Unix, networking, and security controls.
• Experience with cloud or hybrid environments and IaC.
• Excellent stakeholder engagement and mentoring skills.

Responsibilities

• Implement, configure, and optimise middleware platforms.
• Design secure integration solutions using APIs and messaging.
• Lead complex troubleshooting and platform modernisation.
• Develop CI/CD pipelines and IaC practices.
• Collaborate with cross-functional teams and mentor engineers.

Skills

Middleware engineering

APIs & web services

Linux/Unix

CI/CD pipelines

DevSecOps

Tools

Oracle WebLogic

IBM WebSphere

JBoss/WildFly

Tomcat

IBM MQ

Kafka

RabbitMQ

ActiveMQ

Job description

Description

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.

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.

Benefits

• 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 a Senior Middleware Engineer to implement, manage and optimise enterprise middleware platforms that enable reliable integration and communication between applications, databases, services and external systems.

This role provides senior technical expertise across middleware infrastructure, application integration, APIs, messaging, web services, automation, security, performance and high availability. Working closely with application developers, integration engineers, database teams, infrastructure teams, architects, cybersecurity and business stakeholders, you will help deliver secure, resilient and scalable middleware services that support critical business outcomes.

Key Responsibilities

• Implement, configure, maintain and optimise enterprise middleware platforms, including application servers, integration platforms, API gateways, messaging technologies and related services.
• Design, support and improve secure application integration solutions using APIs, web services, messaging platforms, event‑driven architectures and service interfaces.
• Lead complex troubleshooting, root cause analysis, performance tuning, upgrades, migrations, disaster recovery activities and platform modernisation initiatives.
• Develop and maintain automation, CI/CD pipelines, monitoring solutions, operational processes and infrastructure‑as‑code practices to improve service reliability and efficiency.
• Partner with application, infrastructure, architecture, cybersecurity and business teams to deliver integration outcomes, provide technical leadership and mentor engineers in middleware best practices.

About You

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

Skills & Experience

• Significant experience in middleware engineering, integration engineering, application infrastructure or a related discipline, with strong knowledge of enterprise middleware platforms such as Oracle WebLogic, IBM WebSphere, JBoss/WildFly, Tomcat or equivalent.
• Demonstrated experience with APIs, REST, SOAP, XML, JSON, web services, messaging technologies and integration patterns, including platforms such as IBM MQ, Kafka, RabbitMQ or ActiveMQ.
• Strong knowledge of Linux/Unix environments, networking concepts, security controls, troubleshooting, performance management, monitoring, automation and operational support.
• Experience supporting cloud or hybrid environments, container technologies, Infrastructure as Code, CI/CD pipelines and DevOps or DevSecOps practices.
• Excellent stakeholder engagement, technical leadership and communication skills, with the ability to lead investigations, mentor engineers and communicate technical risks and recommendations effectively.

This role requires the successful applicant to be an Australian citizen and hold, or be eligible to obtain, NV-1 security clearance.

What To Expect When You Apply

• An initial conversation with our Talent Acquisition team
• An interview with the hiring manager or interview panel

Ready to explore what’s possible?

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

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

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.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay And Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment‑related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment‑related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [e-mail].

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.