Senior Middleware Engineer: Enterprise Integration & APIs

Leidos Australia

City of Knox

On-site

AUD 150,000 - 190,000

Full time

14 days+

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Job summary

Leidos Australia seeks a Senior Middleware Engineer to implement, manage and optimise enterprise middleware platforms, enabling reliable integration across applications, databases, services and external systems. This role provides senior technical expertise across middleware infrastructure, APIs, messaging, automation, security and high availability.

You will work with development, infrastructure, architecture, cybersecurity and business stakeholders to deliver secure, resilient middleware

Qualifications

Significant experience in middleware engineering or integration engineering with enterprise platforms such as Oracle WebLogic, IBM WebSphere, JBoss/WildFly or Tomcat.
Experience with APIs, REST, SOAP, XML/JSON, messaging and integration patterns (IBM MQ, Kafka, RabbitMQ or ActiveMQ).
Strong Linux/Unix, networking, security, performance monitoring and automation skills.
Experience supporting cloud or hybrid environments, containers, IaC, CI/CD and DevOps/DevSecOps practices.
Excellent stakeholder engagement, technical leadership and mentoring abilities.

Responsibilities

Implement, configure, and optimise middleware platforms including application servers and API gateways.
Design secure integration solutions using APIs, web services, and messaging platforms.
Lead troubleshooting, performance tuning, upgrades, and platform modernisation efforts.
Develop automation, CI/CD pipelines, monitoring and IaC practices to improve reliability.
Collaborate with cross-functional teams to deliver integration outcomes and mentor engineers.