Senior Infrastructure Engineer - Linux

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 resilience

Platform & System Management

• Deploy and manage infrastructure across public and private cloud platforms (including hyper-converged infrastructure), various Linux distributions, Entra ID, corporate datacentre compute and storage, and AWS cloud services
• Work with the DevOps team on Infrastructure as Code (IaC) initiatives
• Administer and harden Active Directory, Entra ID, and authentication systems

Automation & DevOps Support (not a DevOps role)

• Maintain and optimise a predominantly Linux-based global server fleet, with some Windows systems
• Support developers by ensuring underlying infrastructure is robust, efficient, and secure

Governance & Documentation

• Maintain accurate and comprehensive technical documentation, including infrastructure diagrams, system configurations, and procedures
• Ensure infrastructure is audit-ready through version-controlled documentation and adherence to change management practices

Innovation & Continuous Improvement

• Drive automation, efficiency, and system hardening initiatives to improve service delivery and reduce operational risk
• Research and implement emerging technologies aligned with business growth and security strategies

Operational Oversight

• Act as 2IC for Infrastructure, stepping in when the Infrastructure Lead is unavailable
• Lead and participate in day-to-day operational management, including monitoring, incident response, and service restoration
• Participate in the after-hours on-call rotation

Required

Qualifications and Experience

• Strong Linux administration skills
• 8+ years of experience in infrastructure engineering or system administration roles
• Proven experience with AWS services and cloud infrastructure
• Experience with Windows AD and authentication configuration for Linux environments
• Experience with hypervisors and virtualisation platforms (e.g., KVM, VMware)
• Strong understanding of core networking concepts, including VLANs, segmentation, and firewalls
• Scripting and automation experience (e.g., PowerShell, Bash)
• Strong system design, troubleshooting, and incident management capabilities
• Excellent written communication and technical documentation skills

Desirable

• Experience in regulated or security-conscious environments
• Familiarity with Microsoft 365
• Experience with Infrastructure as Code tools such as Terraform or CloudFormation
• Exposure to CI/CD platforms (e.g., GitLab, Jenkins)
• Experience with containerisation platforms (e.g., Docker, Kubernetes)
• Relevant certifications such as AWS Solutions Architect, RHCE, or LPIC-2
• Familiarity with certificate-based authentication and SSH tunnels or jump hosts

On Offer

• Free Home Broadband
• Free Mobile SIM plan
• Flexibility – 3 days/week in the office
• Lunch on Wednesdays, snacks, donuts and more!
• Diverse and inclusive culture
• Gain skills and build relationships to succeed in the telco and tech industries, at Superloop and beyond.

At Superloop, we’re dedicated to creating a supportive and inclusive workplace where everyone feels safe, valued, and empowered to be who they are. We actively embrace diversity and celebrate the unique backgrounds, perspectives, and experiences of our team members. As an equal opportunity employer, we welcome applicants from all backgrounds to apply, regardless of gender, age, faith, ethnicity, nationality, sexuality, neurodiversity, or physical ability. We’re committed to ensuring that our hiring processes are accessible and inclusive for everyone interested in joining Superloop.