Contract Opportunity
Federal Governemnt
Sydney, Canberra or Brisbane
Are you an experienced Oracle Fusion Middleware specialist looking to work on large-scale, business-critical government platforms?
We are seeking a Senior Oracle Fusion Middleware Administrator to join a high-performing team supporting and enhancing complex integration services and enterprise middleware environments within a major Federal Government department.
This role offers the opportunity to work across critical national systems, contribute to major transformation initiatives, and provide technical leadership across Oracle Fusion Middleware technologies.
The Role
As a Senior Oracle Fusion Middleware Administrator, you will be responsible for the administration, support, maintenance, enhancement, and ongoing reliability of enterprise integration platforms and middleware services.
You will play a key role in supporting existing production environments while contributing to future project delivery, platform upgrades, migrations, system integrations, and infrastructure improvements.
This role requires a hands-on technical specialist who can provide expert advice, solve complex technical challenges, and mentor team members while ensuring the ongoing stability and performance of critical systems.
Key Responsibilities
Administer, maintain and support Oracle Fusion Middleware environments
Design, develop and implement complex integration and middleware solutions
Perform technical analysis and provide recommendations for project initiatives
Manage platform upgrades, patching, migrations, deployments and releases
Support production environments and ensure operational stability
Lead troubleshooting and root cause analysis activities for complex incidents
Develop and maintain high availability, disaster recovery and capacity management plans




Monitor system performance and implement proactive improvements
Provide technical leadership, mentoring and knowledge sharing across the team
Ensure compliance with government standards, governance processes and development methodologies
Produce technical designs, solution documentation and operational procedures
Collaborate with architects, developers, infrastructure teams and key stakeholders
Contribute to continuous improvement initiatives across middleware and integration services
Required Experience
To be successful in this role, you will demonstrate experience across Oracle Fusion Middleware administration and support, including:
Oracle Fusion Middleware administration and operational support
Integration support across enterprise systems such as SAP, Siebel, IDM, ADFS and related platforms
Oracle WebLogic Server administration and configuration
Oracle SOA Suite 12c
Oracle Service Bus (OSB)
BPEL and Mediator
Oracle Web Service Manager
Oracle API Gateway and/or IBM DataPower
JDeveloper
Java development and troubleshooting
Oracle RDBMS 12c and PL/SQL
Technical Skills
You will ideally have hands-on experience with:
Web Services
SOAP and REST APIs
WSDL and WADL
XML, JSON
XSLT and XQuery
Service design and interface mapping
Enterprise integration patterns
Middleware platform monitoring and performance tuning
Infrastructure automation and scripting
Production support and operational management
If you are an experienced Oracle Middleware professional looking for your next challenge, we would love to hear from you.
Due to the nature of the role, the candidate must be an australian citizen with an NV1 clearance.
Calleo is an equal prospect employer and we encourage applications from all people including Aboriginal and Torres Strait Islander peoples.
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📌 Senior Oracle Fusion Middleware Administrator (Sydney)
🏢 Calleo
📍 Sydney