Network and Systems Administrator

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TYPE OF WORK

Full Time

WAGE / SALARY

$12 per hour

HOURS PER WEEK

38

DATE UPDATED

Jun 16, 2026

JOB OVERVIEW

Defy IT is a security-first managed IT services provider supporting serious businesses across Brisbane and South East Queensland.

We are not a call-centre MSP. We are a small, senior technical team that works closely with professional, medical, legal, accounting, hospitality and growing SME clients who rely on us to keep their systems secure, stable and productive.

We are looking for a capable Network and Systems Administrator who can take ownership, solve problems properly, and help us continue building a high-performance technical team.

About the Role

This is a hands-on role covering network administration, server support, Microsoft 365, endpoint management, cloud services, cyber security, backup systems and client infrastructure.

You will work across a mix of project work, escalated support, system maintenance, client environments and proactive improvement. The right person will be comfortable moving between firewall configuration, Microsoft 365 administration, server troubleshooting, endpoint security, backups, documentation and client communication.

This role suits someone who enjoys variety, takes pride in clean technical work, and wants to be part of a business that values capability over box-ticking.

Key Responsibilities

Your responsibilities will include:

* Administering and supporting client networks, servers, endpoints and cloud systems
* Managing Microsoft 365 environments, including Exchange Online, SharePoint, OneDrive, Teams, Entra ID and Intune
* Supporting Windows Server, Active Directory, Group Policy, DNS, DHCP and Hyper-V environments
* Configuring and maintaining firewalls, switches, wireless networks and VPNs
* Supporting UniFi, business-grade networking equipment and security hardware
* Implementing and monitoring backup, disaster recovery and business continuity systems
* Investigating and resolving escalated technical issues
* Assisting with cyber security uplift, endpoint protection, MFA, conditional access and device compliance
* Performing system health checks, maintenance and proactive remediation
* Documenting client environments, processes, credentials and technical changes
* Working directly with clients in a professional and reassuring manner
* Assisting with project delivery, migrations, upgrades and infrastructure improvements

About You

You are someone who can think beyond the ticket in front of you.

You understand that good IT support is not just about fixing what is broken. It is about reducing risk, preventing repeat issues, communicating clearly, and leaving systems better than you found them.

You will be a good fit if you are:

* Technically capable and genuinely interested in networking, systems and security
* Calm under pressure and able to troubleshoot methodically
* Comfortable taking ownership of issues through to resolution
* Professional with clients, including business owners and managers
* Strong with documentation and process
* Practical, reliable and willing to work as part of a small team
* Interested in building long-term capability, not just closing tickets

Required Skills and Experience

The ideal candidate will have experience with:

* Microsoft 365 administration
* Windows Server and Active Directory
* Networking fundamentals including VLANs, routing, DNS, DHCP, NAT and VPNs
* Firewall, switch and wireless configuration
* Endpoint support across Windows devices
* Backup and disaster recovery systems
* Remote monitoring and management tools
* Cyber security best practices, including MFA, endpoint protection and access control
* Troubleshooting business-critical systems in professional environments

Highly Regarded

Experience with any of the following will be highly regarded:

* Microsoft Intune and device management
* Microsoft Entra ID and Conditional Access
* Hyper-V virtualisation
* UniFi networking
* VoIP systems
* Medical, legal, accounting or professional services environments
* PSA/RMM platforms
* Security frameworks such as Essential Eight
* Server migration or Microsoft 365 migration projects

What We Offer

* A role with real technical variety
* Exposure to meaningful infrastructure and security projects
* The opportunity to work directly with business clients
* A small, capable team with senior technical leadership
* A security-first approach to MSP services
* A business that values quality work, ownership and professionalism
* Room to grow as Defy IT continues to expand

Why Join Defy IT?

Defy IT is building a different kind of MSP.

We are focused on serious businesses that need reliable, secure and well-managed technology. We do not want to be the cheapest provider in the market. We want to be the provider clients trust when their systems actually matter.

If you are tired of rushed ticket work, poor documentation, reactive chaos and environments held together with guesswork, this is an opportunity to help build something better.

How to Apply

Please submit your resume and a short cover letter outlining your experience with networks, systems administration, Microsoft 365 and client-facing IT support.

We are looking for someone who can bring technical capability, clear communication and pride in their work to a growing IT business.

SKILL REQUIREMENT
IT Systems Administration Cybersecurity
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