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Company Overview Founded in 2014, and listed on the ASX since 2015, Superloop’s purpose is to enable better internet for Australian homes and businesses. We enable challenger retail brands (including Superloop and Exetel brands) to take a larger share of the market, leveraging Superloop’s Infrastructure-on-Demand platform. Superloop provides connectivity and services to customers in three segments of the market: Consumer, Business and Wholesale. Our offerings leverage Superloop’s investments in physical infrastructure assets that include fibre, subsea cables and fixed wireless, as well as Superloop’s software platforms. Hundreds of thousands of homes and businesses rely on Superloop and Exetel every day for their connectivity needs. Visit www.superloop.com to learn more. Business Unit Overview The Information Technology Group (ITG), part of the Operations Business Unit, is responsible for managing all core internal infrastructure, from server operating systems up, including identity services, Microsoft 365, and AWS architecture. The team manages all aspects of internal IT infrastructure, including the design, build, and operation of highly available virtual environments across global locations. You will be joining at a pivotal time, contributing directly to the delivery of Superloop’s new three-year IT strategy. Role Purpose The Senior Infrastructure Engineer is responsible for the design, implementation, and operational support of the organisation’s core infrastructure across on-premises hypervisors, server operating systems, and AWS environments. This role requires deep expertise in Linux server administration and strong proficiency in Entra ID (Azure Active Directory), ensuring secure and reliable identity management across the enterprise. As a senior technical resource, you will develop and support the organisation’s virtualisation platforms, AWS services, and Linux-based server fleet, while driving continuous improvement in resilience, performance, and security. The Senior Infrastructure Engineer will also act as the Infrastructure Team Lead’s 2IC, providing guidance and resolution for complex issues that cross infrastructure, identity, and endpoint domains. Key Responsibilities Infrastructure Architecture & Operations Ensure high availability and performance of core platforms, including hypervisors, identity services, AWS, and global infrastructure environments, with clear ownership of uptime and SLA adherence, and a strong focus on Linux Design, implement, and support secure infrastructure by embedding security controls across servers, endpoints, identity, and cloud platforms in alignment with organisational standards Modernise and standardise infrastructure, reducing technical debt and driving consistency across cloud, endpoint, and identity platforms Automate operational processes, including provisioning, patching, monitoring, and compliance enforcement, to reduce manual effort and improve reliability Maintain complete and up-to-date documentation, including architecture diagrams, runbooks, and disaster recovery procedures, to reduce key-person risk and support audit readiness Own complex incidents end-to-end, including troubleshooting, root cause analysis, and implementation of permanent fixes Deliver infrastructure components for key projects, ensuring solutions are scalable, supportable, and aligned with business and security requirements Manage and optimise cloud and on-premises platforms, including capacity planning, performance tuning, and cost control Collaborate across infrastructure, security, network, and development teams, acting as a senior technical authority and contributing to cross-domain initiatives Drive continuous improvement across infrastructure operations, increasing efficiency, resilience, and service quality Proactively identify and remediate single points of failure, strengthening overall environmental resilie