Systems Administrator - Customer Onboarding & Transition

Join Centorrino Technologies: Innovate, Grow, and Thrive with Us! 

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 2025 and Top 5 Inspiring Workplaces for 2026, with an outstanding eNPS score of 68. And we’re not stopping there. We're on a mission to redefine the customer experience, and we need a passionate Systems Administrator - Customer Onboarding and Transitions to join our transitions team in New South Wales. 

This role is responsible for the successful technical onboarding of new Managed Services customers across Australia. 

The role combines hands-on systems administration, infrastructure engineering, documentation, technical discovery and customer engagement. The successful candidate will travel to customer locations to assess environments, deploy and configure technology, remediate identified issues and transition customers into the Managed Services operating model.

This role requires consistent interstate travel with varying deployment times.

 What you'll do:

• Travel nationally to customer sites to onboard new Managed Services customers and assess their IT environments.
• Perform technical discovery across servers, endpoints, networks, Microsoft 365, Entra ID, Active Directory, security and backup platforms.
• Deploy, configure and validate monitoring, management and security tools, ensuring customers are fully operational and support-ready.
• Administer and support Windows Server environments, Microsoft 365, Active Directory, DNS, DHCP, Group Policy, VMware and Hyper-V platforms.
• Deliver infrastructure upgrades, migrations, remediation activities, backup solutions and disaster recovery initiatives.
• Identify, troubleshoot and resolve complex technical issues and risks before customers transition to Business-as-Usual (BAU) support.
• Document customer environments, create network and infrastructure diagrams, and provide clear technical recommendations and handovers.
• Collaborate with Transition Managers, Service Desk, Systems, Network and Security teams to deliver onboarding projects on time.
• Build strong customer relationships, communicate technical concepts clearly, and provide a seamless onboarding experience from discovery through to transition.