Sydney or Melbourne | 12-Month Fixed-Term Contract Job Description: An exceptional opportunity has become available for an experienced Senior L3 Systems Engineer to join a global operator of mission-critical digital infrastructure supporting cloud platforms, AI-driven workloads, and large-scale enterprise environments. This is not a traditional support role. You'll be joining a highly skilled Infrastructure Support Services team responsible for maintaining and improving the core platforms that underpin some of the most demanding technology environments in the world. The role combines advanced operational support, technical leadership, major incident management and continual service improvement across a modern enterprise infrastructure stack. If you enjoy solving complex technical challenges, taking ownership of critical incidents, and operating within large-scale, highly available environments, we'd love to hear from you. What You'll Be Doing Act as the Level 3 escalation point for critical infrastructure incidents. Lead troubleshooting, root cause analysis and service restoration for Priority 1 and Priority 2 incidents. Support large-scale VMware and enterprise infrastructure environments. Administer and optimise compute, storage, backup and identity platforms. Participate in a 24x7 on-call roster supporting mission-critical services. Maintain infrastructure security through patching, remediation and hardening activities. Support infrastructure lifecycle management including upgrades, migrations and technology refresh initiatives. Drive automation, monitoring and operational improvement initiatives. Produce high-quality technical documentation, standards and operational runbooks. Work closely with vendors, project teams and operational stakeholders to deliver resilient infrastructure services. Key Technologies Virtualisation & Compute VMware vSphere VMware ESXi VMware vCenter Virtual Machine Administration High Availability & Disaster Recovery Storage & Data Protection NetApp Storage SAN & NAS Technologies Backup & Recovery Solutions Disaster Recovery Platforms Capacity & Performance Management Windows & Identity Services Windows Server Active Directory DNS & DHCP Group Policy PKI & Certificate Management Identity & Access Management Monitoring & Automation Infrastructure Monitoring Platforms Performance & Capacity Management PowerShell Scripting Infrastructure Automation Operational Reporting & Alerting Security Hardening Patch Management What We're Looking For We're seeking a true infrastructure specialist who can demonstrate: 10+ years of Systems Engineering or Infrastructure Engineering experience. Strong VMware administration and troubleshooting capability. Hands-on experience supporting NetApp storage environments. Experience supporting enterprise-scale server and infrastructure platforms. Proven success operating as an L3 escalation point. Strong incident management and root cause analysis skills. Experience supporting highly available and business-critical environments. Exposure to enterprise monitoring, automation and infrastructure management tools. Excellent communication and stakeholder management skills. Highly Regarded Experience within data centre, managed services or critical infrastructure environments. Experience supporting 24x7 operational environments and participating in on-call rosters. Disaster Recovery and Business Continuity planning experience. Experience mentoring L1/L2 support teams. Current NV1 Security Clearance (desirable) Australian Citizenship (mandatory) / or eligibility to obtain an Australian Government Security Clearance. #AUS Why Join Us?  Our promise to our employees, Belong, Grow and Thrive is our commitment to creating an environment that is inclusive to all, supports your professional and personal development, and offers an environment where you can do life and work the way it works for you.  Here is how our benefits help you:  ⦁ Equal Paid Parental Leave for all primary and secondary carers.  ⦁ Flexible and Focused Ways of Working that empower you to structure your work in a way that best suits you while supporting our customers, people and the planet.  ⦁ Employee Assistance Program, providing employees and their immediate families with confidential access to a wide range of counselling and professional support services.  ⦁ Purchased Leave options, allowing you to buy up to 10 additional days of annual leave each year to help you balance life’s priorities.  ⦁ Novated Leasing and Salary Sacrificing options to make your salary work harder for you.  ⦁ Diversity, Equity and Inclusion Commitment which places Inclusion as a strategic priority for Logicalis Australia, with investment across DEI programs to foster a workplace culture built on accountability, respect and zero tolerance for exclusionary behaviours.  ⦁ Logicalis Learning Space, our Udemy-powered platform, providing unlimited access to thousands of courses to help you develop new skills, enhance your expertise and drive your professional growth at your own pace.  ⦁ Investment in Leadership and Career Growth. Logicalis is a place where we see our people as the most valued Architects of Change. Our people progress from Helpdesk to Cloud Engineering, from Sales to Management, and from Operations to Senior Leadership. Here, ideas turn into action. You can make a plan, see it through and genuinely shape your own professional success.  About Us  At Logicalis Australia, we are not just changing the game, we are driving the future of technology.  As the Architects of Change™, our mission is clear: to become the leading technology services provider and employer in the Australia and New Zealand (ANZ) region.  By combining our global expertise and local insight, we position ourselves as a technology powerhouse, ready to capture growth opportunities across APAC and deliver exceptional service to our customers.  You will be part of a dynamic team of 7,000 plus innovators, collaborating across 30 territories with over 10,000 clients from diverse industries. Every project presents a unique opportunity to make a tangible impact, empowering businesses to thrive in today’s fast-paced digital landscape. With services that drive transformation and scalability such as cloud, connectivity, collaboration and security, you will help optimise operations and enable teams to reach new heights.  As a global leader, our managed services provide real-time insights into clients’ digital ecosystems, 24 hours a day, 7 days a week.  We are proud to be Great Place to Work® Certified for 2025 and 2026, a recognition that reflects our people-first culture and our commitment to fostering an inclusive, empowering and growth-oriented environment.  Join us on this exciting journey and let us shape the future of technology together.  Logicalis is an international solutions provider of digital services currently accelerating the digital transformation of its 10,000 customers around the world. Through a globally connected network of specialist hubs, sector-leading experts (in education, financial services, government, healthcare, manufacturing, professional services, retail and telecommunications) and strategic partnerships (including Cisco, Microsoft, HPE, IBM, NetApp, Oracle, ServiceNow, and VMware), Logicalis has more than 6,500 employees focused on understanding customer priorities and enhancing their experience. As Architects of ChangeTM, Logicalis’ focus is to design, support, and execute customers’ digital transformation by bringing together their vision with its technological expertise and industry insights. The company, through its deep knowledge in key IT industry drivers such as Security, Cloud, Data Management and IoT, can address customer priorities such as revenue and business growth, operational efficiency, innovation, risk and compliance, data governance and sustainability. Logicalis Group, with annual revenues of $ 1.5 billion annually, maintains operations in Europe, North America, Latin America, Asia Pacific and Africa and is part of Datatec Group, which is listed on the Johannesburg Stock Exchange (JSE:DTC), with revenues of more than $ 4.1 Billion.

Senior L3 Systems Engineer.

more at Logicalis.

Solution Architect Integration & AI

Senior L3 Network Engineer

Resident Engineer

similar roles.

Functional Consultant (Product Consultant)

Project Manager, Network Infrastructure

Program/Project Manager - Teleport & Uplink Infrastructure

2027 Investment Banking Intern - NYC

Commercial Analyst

Multiplatform Database Administrator Senior