Mainframe Developer

About Peoplebank Peoplebank, part of RGF Staffing ANZ, is a leading talent solutions provider. We place the brightest IT & digital professionals into some of the region’s top employers. We are expert recruiters who have been placing IT & digital specialists with some of the most dynamic and recognised organisations in the Asia Pacific region for over 34 years. 

About the Role Our Federal Government Client is seeking a Senior Mainframe Developer.

This is a long-term contract role with an initial term of up to 12 months, with extensions available located in ACT, NSW, VIC, QLD or SA under a hybrid working arrangement.
The successful candidate will be required to work onsite for the first 6 weeks, after which a hybrid arrangement may be considered subject to business requirements.

As the selected candidate, you will:

• Undertake analysis, design, development, prototyping, testing and maintenance activities.
• Develop and maintain complex mainframe applications and software solutions.
• Perform technical analysis and provide recommendations for solution design and implementation.
• Define software and technical designs for high-complexity custom, migration and integration solutions.
• Support development teams in delivering quality ICT solutions.
• Ensure compliance with software development standards, methodologies and best practices.
• Provide go-live support, maintenance and troubleshooting for production systems.
• Develop technical documentation, reports and design artefacts.
• Collaborate with business stakeholders and technical teams to deliver project outcomes.
• Contribute to continuous improvement and innovative technology solutions.
• Monitor workloads and delivery outcomes to achieve business objectives.
• Provide technical guidance and support to senior stakeholders and team members.

To be successful in this role you should have:

• Demonstrated experience applying software development methods, tools and standards (SFIA Level 4).
• Strong programming and software development capability, including designing, coding, testing, documenting and maintaining complex applications (SFIA Level 4).
• Experience supporting release and deployment activities, including software delivery, configuration and deployment processes (SFIA Level 4).
• Experience designing, implementing and maintaining software configurations for enterprise environments (SFIA Level 4).
• Ability to undertake complete software design for moderately complex applications and components (SFIA Level 3).
• Experience designing system components using appropriate architectures, modelling techniques and design patterns (SFIA Level 4).
• Proven experience with systems integration, build activities and integration testing (SFIA Level 4).
• Experience designing and executing test cases, scripts and test plans, including automated testing approaches (SFIA Level 3).
• Strong stakeholder engagement, communication and documentation skills.
• Experience working within large-scale Government or enterprise ICT environments.
• Ability to obtain and maintain a Baseline Security Clearance.

It is desirable if you have:

• Experience in application support and maintenance activities (SFIA Level 3).
• Experience identifying and resolving application issues in production environments.
• Familiarity with application management tools and performance monitoring.
• Previous experience supporting mainframe systems within large government environments.

Due to security clearance requirements for this role, candidates must be Australian citizens with the ability to obtain and maintain a Baseline Security Clearance.

Benefits of being a Peoplebank candidate:

• Personalised Attention: You'll be assigned a dedicated Account Manager to support your unique needs.
• User-Friendly Services and Ongoing Support: Easy online timesheet lodgement, plus full access to contractor care, payroll, and admin support throughout your contract.
• Choice and Flexibility: A wide variety of contracting options tailored to your preferences and circumstances.
• Industry-Leading Payroll Services: Enjoy the reliability of accurate, on-time weekly payments.
• Contractor Satisfaction Focus: Our goal is to be your top choice for IT contracting and permanent roles, with your success at the centre of everything we do.

Apply now for immediate consideration – contact  Louise Francisco on 0262451715 quoting Job Reference: # 272540.
 
Applications close: 5:00 PM, Tuesday, 27 October 2026
 
Please note: Only candidates that meet the above criteria will be contacted. Thank you for your interest in the position.


Peoplebank and Leaders IT are committed to creating a diverse and inclusive workplace where everyone belongs. We welcome applications from people of all backgrounds, identities, and experiences. If you need adjustments to the recruitment process due to your circumstances, please let us know—we’re here to support you.