IT Server Administrator

• Join a high-performing APAC IT team supporting enterprise infrastructure across Australia, New Zealand and Asia

• Lead infrastructure improvements, system optimisation and cloud initiatives that support thousands of users across the APAC region

• Location: Sydney, Brisbane or Melbourne

From server performance and disaster recovery to cloud platforms and infrastructure projects-this is an opportunity to make a real impact across a global organisation.

At Tetra Tech, technology enables some of the world's most important engineering, environmental, infrastructure, and consulting projects. As part of the APAC IT team, you'll help deliver secure, reliable, and innovative technology services that support thousands of professionals across Australia, New Zealand, Asia, and the wider global business.

About the role


This is more than an IT operations role. You'll work in a collaborative, high-performing team responsible for driving service excellence, modernising technology platforms, improving user experience, and enabling business growth across a geographically diverse region."

What you'll do:


Reporting to the Reports To: APAC IT Director - Service & Operations, the Server Administrator provides advanced server management and operational support. This position ensures high levels of system availability, performance, and security across multiple environments, and supports the delivery of infrastructure projects and improvements.

Responsibilities:

• Manage and maintain enterprise servers, ensuring optimal uptime and reliability.

• Monitor, document, and report on system capacity and usage to support business continuity.

• Perform risk assessments and implement proactive maintenance, OS updates, and vulnerability remediation.

• Ensure backup systems are tested, validated, and ready for disaster recovery operations.

• Handle escalated support requests, resolving incidents efficiently and meeting SLA requirements.

• Maintain comprehensive and accurate system documentation for internal and audit purposes.

• Lead or assist with the delivery of infrastructure projects, upgrades, and migrations.

• Collaborate with other IT teams to implement technical work packages and project deliverables.

• Adhere to established IT policies and change management standards.

• Mentor and support Level 1 Server Administrators as required.

• Escalate high-impact issues or decisions as appropriate to ensure effective resolution.

About you:


You'll have a Bachelor's or Associate degree in Computer Science, Information Systems, or a related discipline, and a minimum of three (3) years' experience in a server administration environment.

The skills you'll need:

• Demonstrated experience in Windows and/or Linux server administration.

• Strong knowledge of system monitoring, patching, and backup management.

• Proficiency in troubleshooting server issues, performance optimization, and automation tools.

• Experience with virtualization technologies (VMware, Hyper-V, Proxmox) and cloud platforms (AWS, Azure) preferred.

• Excellent technical writing and verbal communication skills.

• Self-motivated, detail-oriented, and able to manage multiple tasks independently or as part of a team.

The perks:

• Work-Life Balance: Flexible work options, tailored hours, study breaks, and the ability to buy extra leave - up to 8 weeks per year!

• Diverse Experience: Work across a wide variety of projects, clients, and sectors.

• Growth Opportunities: Professional development, coaching, and mentorship from our top experts.

• Recognition: Our reward and recognition program makes sure your hard work doesn't go unnoticed.

• Ownership: Participate in our employee stock purchase plan.

• Parental Leave: Paid leave for both primary and secondary caregivers.

• Support: Employee assistance program for you and your immediate family.