Level 3 Systems Engineer

Level 3 Systems Engineer – Sydney

About the Role
We are partnering with a growing managed services provider to hire a Level 3 Systems Engineer to join their high-performing Assist Team.

This role will see you operating as a senior escalation point across complex infrastructure and security environments, while also playing a key role in technical leadership, automation, and continuous improvement initiatives.

You’ll work across a broad range of Microsoft, virtualisation, and network technologies, supporting enterprise clients while mentoring junior engineers and driving best practice across the team.

Key Responsibilities

• Provide Level 3 support across systems, infrastructure, and network environments
• Troubleshoot and resolve complex incidents across Microsoft technologies (Windows Server, M365, Exchange, SharePoint, SQL)
• Support and manage virtualisation platforms (VMware, Hyper-V)
• Maintain and support Citrix environments (Virtual Apps, Desktops, Netscaler, WEM)
• Deliver network-level support across WAN/LAN, firewalls, routing, and connectivity
• Act as a senior escalation point for L1/L2 engineers and assist with critical incident resolution
• Communicate effectively with clients, providing updates, managing expectations, and ensuring service quality

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  Key Skills & Experience
• Strong experience in a Level 3 Systems / Infrastructure Engineer role
• Deep expertise across Microsoft environments (Windows Server, M365, Azure)
• Experience with virtualisation (VMware, Hyper-V) and Citrix technologies
• Strong networking knowledge (WAN/LAN, firewalls, routing, security)
• Experience with endpoint management (Intune, Autopilot)
• Scripting/automation experience (PowerShell highly desirable)
• Exposure to security frameworks and tools (Defender, Secure Score, etc.)
• Proven experience in a managed services or client-facing environment

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  Certifications (Desirable)
• Microsoft Certifications (AZ-104, MS-500, M365 Expert)
• Security certifications (Security+, CISSP, CISM, etc.)
• Other relevant infrastructure or cloud certifications

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  Ideal Candidate Profile
• Strong technical depth with a proactive and solutions-focused mindset
• Experience working in MSP or multi-client environments
• Comfortable mentoring others and leading technical initiatives
• Strong communication skills with the ability to engage with both technical and non-technical stakeholders
• Commercially aware with a focus on delivering high-quality outcomes