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It operations & security administrator

Brisbane
SUBCO
IT
Posted: 26 March
Offer description

With a proven track record of delivering transformative connectivity, SUBCO owns and operates critical submarine cable assets linking Australia to Asia, the Middle East, and beyond. Building on this foundation, a new 5,000 km domestic cable system - connecting emerging digital hubs across Australia - is set to go live in 2026, marking a major milestone in SUBCO's evolution.

As demand for high-capacity, resilient infrastructure accelerates, SUBCO is entering a strategic growth phase of major scale up, actively pursuing global opportunities to deliver innovative connectivity solutions that meet the needs of cloud, content, and AI-driven enterprises.

Our Values

At SUBCO, our values are the foundation of everything we do. They shape our culture, guide our decisions, and define how we interact with our customers, partners, and each other. From being Customer Obsessed to always Raising the Bar, we are committed to innovation and excellence. Together, we are a team of Trailblazers who Grow Together and hold ourselves accountable, ensuring that We Each Set the Standard for success. These values aren't just words – they drive us forward every day.

About our role

Reporting to the Head of IT Platforms, Systems & Security, this role supports Subco's corporate IT environment across platforms, devices, and security operations. The position focuses on reliable IT service delivery, platform administration, automation of repetitive tasks, and maintaining strong operational documentation.

Key Responsibilities Platform Administration
* Administer Microsoft 365 (Entra ID, Intune, Exchange Online, Teams) and support identity, device, and compliance configurations.
* Support Atlassian tools (Jira Service Management, Jira Software, Confluence) including workflows, automations, and integrations.
* Assist with PowerBI workspace administration, data gateway configuration, and dashboard access governance.
* Maintain network services including VLANs, VPN, DNS, DHCP, firewalls, and routing.
Security & Compliance
* Perform routine security checks on access, endpoints, and configurations.
* Support ISO27001 and Essential 8 compliance tasks and participate in incident response activities.
IT Asset Management & Device Deployment
* Manage end-to-end device lifecycle: procurement, setup, shipping coordination, returns, and asset tracking.
* Maintain accurate ITAM records, standardised device kits, and inventory for compliance and audits.
Automation & Process Improvement
* Identify manual or repetitive tasks and automate using scripting (PowerShell/Python) and available tooling.
* Maintain documentation, runbooks, and knowledge articles in Confluence.
User Experience & Support
* Deliver responsive, customer-focused support to users across global and remote teams.
* Manage requests and incidents in Jira Service Management and maintain self-service knowledge bases.
* Provide IT training and guidance to internal teams as required.
Business Continuity & Operations
* Participate in disaster recovery and business continuity testing.
* Conduct regular reviews of equipment, processes, and control effectiveness.
About You
* 3–5+ years in IT Operations or Systems Administration in a corporate environment.
* Strong experience with Microsoft 365, Intune MDM, and Atlassian administration.
* Scripting experience (PowerShell/Python) and familiarity with APIs for automation.
* A proactive self-starter with a passion for delivering great outcomes
* Experience with IT Asset Management, identity and access management, and MDM for Windows/macOS/iOS.
* Working knowledge of networking fundamentals (VLANs, DNS, VPN, firewalls).
* Exposure to ISO27001, Essential 8, SIEM/monitoring platforms, or ITIL practices.
* Strong organisation, documentation, and communication skills with a service-oriented approach and experience working at pace in a scaling organisation.
* Comfortable supporting distributed teams across multiple locations.
Why you'll love working at SUBCO
* Great people, real impact – SUBCO's people are its biggest strength, a team of smart, collaborative experts building infrastructure that powers global connectivity. The work is meaningful, the impact is industry‐shaping, and the opportunity to grow with us has never been bigger.
* Hybrid work model – We value face-to-face collaboration, while still giving you flexibility to balance work and life
* Flex Leave (5 days) – Extra paid leave each year for life admin, study, appointments, or important moments that matter to you
* Your birthday off – Take the day to celebrate, recharge, or do absolutely nothing
* Free coffee & snacks – Quality local coffee tab and snacks to keep you fuelled (no one works well when they're hangry)
* Pet-friendly HQ – Bring your furry (or not-so-furry) friends to the office — we love meeting them
* Inclusive parental leave – 12 weeks paid parental leave (or 24 weeks at half pay), available to all parents regardless of gender or carer status, with superannuation contributions for up to 12 months, even during unpaid leave
* Milestone rewards – Celebrate your time with us at 1, 3, 5 and 10 years
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