Senior Systems Administrator / IT Systems Engineer (Azure, Security, Intune & Networks)

Junioradventuresgroup; Melbourne; Hybrid; AUD 120,000 - 150,000; Full time

Job summary

Junior Adventures Group seeks an experienced Senior Systems Administrator to shape our infrastructure, security and cloud environment. This hybrid role involves leading projects, mentoring staff, and delivering scalable technology solutions to support business growth.

The ideal candidate will have 5+ years in senior roles, hands-on Azure/M365, Entra ID, Intune, Defender, and strong networking expertise. You will partner with the IT Operations Manager to drive secure, modern systems initiatives.

Qualifications

• 5+ years in Senior Systems Administrator or similar role.
• Ability to lead projects and drive infrastructure improvements.
• Experience delivering infrastructure, cloud or security projects from planning to implementation.

Responsibilities

• Design, implement and support enterprise infrastructure across Microsoft Azure, Microsoft 365 and integrated SaaS platforms.
• Manage and enhance cloud security, identity and endpoint management solutions including Entra ID, Conditional Access, Intune and Defender.
• Lead infrastructure, cyber security and technology improvement projects from design through to implementation and operational handover.
• Design and support Azure Virtual Desktop (AVD) environments and related technologies.
• Maintain and optimise enterprise networking environments including Cisco Meraki, Ubiquiti, VPN and SD-WAN.
• Act as a senior technical escalation point, identify risks, resolve complex issues and drive improvements.
• Mentor junior team members and contribute to technical standards and best practices.

Skills

Azure

Azure AD

Intune

Defender

AVD

Networking

PowerShell

Tools

PowerShell

Cisco Meraki

Ubiquiti

VPN

SD-WAN

Job description

Shape the future of our technology environment

We're looking for an experienced Senior Systems Administrator or Infrastructure Engineer who thrives on solving complex technical challenges and driving meaningful change.

This isn't a traditional BAU support role. You'll play a key role in shaping and improving our infrastructure, security and cloud environment, leading projects that strengthen our technology capability and support business growth.

Working from our Camberwell office 3-4 days per week, you'll partner closely with the IT Operations Manager, act as a senior technical escalation point, mentor team members and help deliver a modern, secure and scalable technology environment.

What You'll Be Doing

• Design, implement and support enterprise infrastructure across Microsoft Azure, Microsoft 365 and integrated SaaS platforms.
• Manage and enhance cloud security, identity and endpoint management solutions including Entra ID, Conditional Access, Intune and Microsoft Defender.
• Lead infrastructure, cyber security and technology improvement projects from design through to implementation and operational handover.
• Design and support Azure Virtual Desktop (AVD) environments and associated technologies.
• Maintain and optimise enterprise networking environments including Cisco Meraki, Ubiquiti, VPN and SD-WAN solutions.
• Act as a senior technical escalation point, proactively identifying risks, resolving complex issues and driving continuous improvement.
• Mentor junior team members and contribute to technical standards, documentation and operational best practices.
• Participate in occasional after-hours work for planned critical changes (infrequent).

About You

You're an experienced infrastructure professional who enjoys taking ownership, leading initiatives and improving the way technology supports the business.

You will bring:

• 5+ years' experience in a Senior Systems Administrator, Systems Engineer, Infrastructure Engineer or similar role.
• A proactive mindset with the ability to identify opportunities, solve problems and drive outcomes.
• Experience delivering infrastructure, cloud or security projects from planning through to implementation.
• Strong stakeholder engagement, communication and documentation skills.
• A passion for mentoring others and contributing to a high-performing team.

You will demonstrate strong technical experience with:

• Microsoft Azure and Microsoft 365
• Microsoft Entra ID and Conditional Access
• Microsoft Intune and Endpoint Management
• Microsoft Defender Security SuiteAzure Virtual Desktop (AVD)
• Cisco Meraki, Ubiquiti and enterprise networking
• PowerShell automation and troubleshooting
• Zero Trust security principles and modern cyber security practices
• Mobile Device Management (MDM) and enterprise mobility environments

Desirable Certifications

• Microsoft Certified: Azure Administrator Associate
• Microsoft Certified: Azure Security Engineer Associate
• Microsoft Certified: Identity and Access Administrator Associate
• Microsoft Certified: Endpoint Administrator Associate
• Cisco Meraki certifications
• CompTIA Security+
• CISSP

Why Join Us?

This role is ideal for a Senior Systems Administrator looking to broaden their project delivery, infrastructure and technical leadership experience. You'll have the opportunity to influence technology decisions, lead meaningful improvements and continue growing your capability within a modern cloud-first environment.

At Junior Adventures Group, child safety and child safeguarding principles are our top priorities. Our recruitment process includes thorough background checks and screenings to ensure the wellbeing of all children in our care.

We welcome individuals from all backgrounds, abilities, and identities, including Aboriginal and Torres Strait Islander people.