Senior Systems Engineer (L3) - Cloud, Infrastructure and Backup

About the Role We are seeking an experienced Senior Systems Engineer (L3) - Cloud, Infrastructure & Backup to provide advanced technical support, manage enterprise infrastructure, and resolve complex technical escalations across cloud, endpoint, networking, virtualization, and security environments. In this role, you will serve as a senior technical escalation point, leveraging your expertise in Microsoft 365, Azure, Intune, Windows Autopilot, and enterprise infrastructure technologies. You will play a key role in maintaining system reliability, strengthening security, automating operational processes, and delivering effective technical solutions. This opportunity is ideal for a seasoned infrastructure professional who enjoys solving complex technical challenges, driving continuous improvement, and supporting modern IT environments. About the Client You will be working with an established managed services provider that delivers comprehensive technology solutions to business clients. The organization focuses on maintaining secure, reliable, and efficient IT environments through proactive infrastructure management, advanced technical support, and modern cloud and security solutions. Ideal Profile Technical Expertise At least 5 years of experience in an L3 Systems Engineer, Infrastructure Engineer role. Strong hands-on experience administering Microsoft 365, Microsoft Azure, Microsoft Intune, Windows Autopilot, and Azure Virtual Desktop (AVD). Extensive experience with VMware vSphere and Hyper-V administration and troubleshooting. Strong networking knowledge, including VLANs, switching, routing, TCP/IP, DNS, DHCP, and VPNs. Practical experience administering Fortinet firewalls and managing security policies. Advanced Windows Server administration skills, including Active Directory, Group Policy, DNS, DHCP, and Certificate Services. Experience managing Certificate Servers and Public Key Infrastructure (PKI). Familiarity with Datto RMM or similar remote monitoring and management platforms. Strong PowerShell scripting and automation capabilities. Problem-Solving and Communication Advanced troubleshooting, analytical thinking, and problem-solving abilities. Ability to perform root cause analysis and implement sustainable solutions to recurring technical issues. Strong communication and stakeholder management skills, with the ability to engage effectively with clients and internal teams. A proactive approach to infrastructure management, security, and continuous improvement. Preferred Certifications Microsoft Certified: Azure Administrator Associate (AZ-104). CCNA (Cisco Certified Network Associate). ITIL 4 Foundation. Microsoft Endpoint Administrator or related Microsoft certifications. Fortinet NSE certifications. VMware certifications. Additional Advantages Experience supporting hybrid cloud environments. Knowledge of Microsoft Defender and security best practices. Experience with backup, disaster recovery, and business continuity solutions. Exposure to automation and infrastructure-as-code concepts. Responsibilities Infrastructure and Technical Escalation Provide Level 3 technical support and act as the final escalation point for complex infrastructure, cloud, and endpoint management issues. Investigate and resolve advanced technical incidents across enterprise environments. Conduct root cause analysis for recurring incidents and implement permanent corrective measures. Cloud and Endpoint Management Design, implement, and maintain Microsoft 365, Azure, Intune, and Windows Autopilot environments. Manage and troubleshoot Azure Virtual Desktop (AVD) infrastructure and user environments. Monitor and manage endpoints using Datto RMM and other monitoring tools. Virtualization and Server Administration Administer and troubleshoot VMware vSphere and Hyper-V virtualization platforms. Maintain Windows Server environments, including Active Directory, Group Policy, DNS, DHCP, and Certificate Services. Support certificate management and PKI infrastructure. Networking and Security Configure, maintain, and troubleshoot VLANs, switches, routers, and enterprise networking environments. Administer Fortinet firewalls, security policies, VPNs, and related security services. Apply security best practices to support the stability and protection of IT infrastructure. Automation and Continuous Improvement Develop and maintain PowerShell scripts to automate operational tasks and improve service delivery efficiency. Identify opportunities to streamline processes through automation and infrastructure-as-code practices. Contribute to proactive monitoring and continuous infrastructure improvement. Projects and Service Management Participate in infrastructure projects, system migrations, upgrades, and cloud transformation initiatives. Create and maintain technical documentation, knowledge base articles, and standard operating procedures. Ensure adherence to ITIL best practices and established service management processes. How we take care of our team 💰 Get paid in Australian Dollars 🏥 Medical insurance from day one for you + spouse (or parents if unmarried) 🩺 Generous OPD coverage from doctor visits to all your medical needs 🏡 Home office setup allowance to build your ideal workspace 🌐 Internet allowance to keep you connected 💪 Gym & wellness allowance to stay fit and balanced 🎉 Work hard, play hard – regular team events & engagement activities 🧠 Diji Assist – Mental health & counseling support when you need it 📚 We invest in you – reimbursement for industry certifications 🗣️ Open-door culture – your ideas and feedback always matter 🌍 Flexible work – home or office, wherever you do your best work 🏆 Rewards & recognition that actually recognize you 🥳 Great christmas & financial year-end parties to unwind with your loved ones