Systems Administrator - Customer Onboarding & Transition

Centorrino Technologies Pty Ltd.; Sydney; On-site; AUD 90,000 - 120,000; Full time

Job summary

Centorrino Technologies Pty Ltd. in New South Wales seeks a Systems Administrator - Customer Onboarding and Transitions to lead the technical onboarding of new Managed Services customers across Australia.

This hands-on, customer-facing role involves travel to assess environments, deploy and configure monitoring and security tools, and ensure a seamless transition from discovery to BAU. You’ll work with cross-functional teams to deliver projects on time and delight customers.

Qualifications

• 3+ years in Systems Administration, Infrastructure Engineering or MSP environment.
• Strong hands-on with Microsoft Windows Server, Microsoft 365, Active Directory and Entra ID.
• Solid networking knowledge across DNS, DHCP, TCP/IP and VLANs.
• Experience supporting and troubleshooting complex infrastructure environments.
• Exposure to VMware, Hyper-V, endpoint management and remote monitoring/management platforms.
• Strong documentation, problem-solving and technical troubleshooting skills.
• Excellent communication skills with customers and stakeholders.
• Current Australian Driver's Licence and ability to travel regularly across Australia.

Responsibilities

• Travel nationally to customer sites to onboard new Managed Services customers and assess IT environments.
• Perform technical discovery across servers, endpoints, networks, Microsoft 365, Entra ID, Active Directory, DNS, DHCP, 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.
• 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 BAU support.
• Document customer environments, create network/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.

Skills

Windows Server

Microsoft 365

Active Directory

Entra ID

Networking

VMware

Hyper-V

RMM tools

Documentation

Communication

Driver's Licence

Tools

VMware

Hyper-V

DNS

DHCP

Active Directory

Job description

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 is a hands-on, customer-facing engineering role suited to someone who enjoys variety, travel and working directly with customers to build and improve their technology environments.

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.

What you'll bring:

• 3+ years' experience in Systems Administration, Infrastructure Engineering or a Managed Services (MSP) environment.
• Strong hands-on experience with Microsoft Windows Server, Microsoft 365, Active Directory and Entra ID.
• Solid networking knowledge across DNS, DHCP, TCP/IP and VLANs.
• Experience supporting and troubleshooting complex infrastructure environments.
• Exposure to VMware, Hyper-V, endpoint management and remote monitoring and management (RMM) platforms.
• Strong documentation, problem-solving and technical troubleshooting skills.
• Excellent communication skills, with the ability to engage effectively with customers and stakeholders.
• A current Australian Driver's Licence and the ability to travel regularly across Australia.

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. 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.