Mainframe Technical Lead

At Centorrino Technologies (CT), we’re more than just tech—we’re a community that goes beyond expectations. We’ve been recognised as a Great Place to Work in 2024-2025 and one of the Best Places to Work Medium & Large Size in Australia for 2025, with an outstanding eNPS score of 68. And we’re not stopping there.

We are seeking an experienced Mainframe Technical Lead to support the development, maintenance, and modernisation of enterprise mainframe applications within a large-scale technology environment. The role will provide technical leadership across complex application landscapes, supporting system enhancement, integration, and delivery while mentoring development teams and driving continuous improvement initiatives.

This is a 12-month full-time contract role based on-site in Darwin, NT.

What You’ll Do

• Lead the development, maintenance, and enhancement of enterprise mainframe applications and supporting systems
• Provide technical leadership across complex application environments and system integrations
• Plan, coordinate, test, and deliver system releases across development, test, and production environments
• Provide Level 3 technical support, troubleshooting, and issue resolution for business-critical applications
• Support mainframe modernisation initiatives involving legacy and web-based technologies
• Develop and maintain technical, operational, and procedural documentation
• Provide technical advice, risk identification, and escalation support to stakeholders and management
• Mentor and guide development teams, supporting capability uplift and best practice delivery
• Collaborate with multidisciplinary teams to deliver reliable and customer-focused ICT solutions

What You’ll Bring

• Extensive experience across the full application development lifecycle within enterprise mainframe environments
• Strong expertise in mainframe technologies including COBOL, CICS, TSO, QMF, ISPF, JCL, DB2, SQL, EGL, and BIRT
• Experience with mainframe modernisation tools and practices, including Rocket LegaSuite products
• Knowledge of web development technologies including XML, HTML, JavaScript, .NET, and Sitecore
• Proven experience delivering complex application releases and managing deployments across multiple environments
• Strong analytical, troubleshooting, and problem-solving capabilities within large-scale application environments
• Experience developing and maintaining enterprise application codebases and technical documentation
• Strong stakeholder engagement and communication skills, with the ability to provide clear technical guidance and recommendations
• Demonstrated leadership experience mentoring development teams and driving continuous improvement initiatives

Why You'll Love Working Here:

Our company is more than just a workplace, it's a hub of inspiration and creativity where employees love to work! Here's why:

• Extensive training and development opportunities that enable continual growth as part of your career planning.
• Extensive discounts and benefits to maximise your money.
• A choice of your IT equipment to maximise your success and access to cost-price tech for your personal needs.
• Fun team events to celebrate achievements and connect with colleagues outside work as part of our engaging culture.

CT celebrates diversity and enables every voice to be heard as we drive to create the world we want. Apply today and be part of a team that values innovation, inclusivity, variety and diverse backgrounds.

Note: A valid Vulnerable People / Working with Children Check (WWCC) and Police Check are required.