ASC is Australia’s submarine company. We built the Royal Australian Navy’s Collins Class submarines, sustain them, and are now delivering their Life of Type Extension to increase the boats’ service lives. We have also been selected by the Australian Government to sustain and jointly build the nation’s nuclear-powered submarines – the largest and most complex industrial undertaking in Australia’s history.

Our work is interesting and meaningful, contributing directly to Australia’s national security. We offer rewarding roles that provide the opportunity to grow your career, and the flexibility to balance life and work. A career at ASC is like no other, delivering a deeper purpose we can all be proud of.

About the Opportunity

As a Senior System Administrator, you will play a key role in maintaining and enhancing ASC's critical technology infrastructure. Working within the IT Operations team, you will provide technical leadership, resolve complex infrastructure challenges, drive continuous improvement initiatives, and ensure enterprise platforms remain secure, reliable and aligned to business needs.

Responsibilities

• Administer, support and optimise enterprise infrastructure platforms, including Microsoft environments, virtualisation platforms and storage systems.
• Act as the technical escalation point for complex infrastructure incidents, ensuring timely resolution and minimal business disruption.
• Lead infrastructure improvement initiatives and contribute to technology roadmaps, operational standards and governance frameworks.
• Monitor platform performance, identify operational risks and implement solutions to improve system reliability, resilience and security.
• Provide expert technical advice, reporting and recommendations to IT leadership on platform health, emerging risks and future infrastructure requirements.
• Coach, mentor and develop technical capability within the Operations team while promoting a culture of continuous improvement and operational excellence.

About you 

• Bachelor's degree in Information Technology, Computer Science or equivalent industry experience.
• Minimum 5 years' experience administering production Microsoft domains, virtualisation technologies and storage environments.
• Strong understanding of cyber security principles, risk management and infrastructure governance frameworks such as PSPF, ISM, ISO 27001 or NIST.
• Proven ability to manage critical incidents, troubleshoot complex technical issues and provide effective solutions.
• Excellent written and verbal communication skills, with experience producing technical documentation, reports and stakeholder presentations.
• Highly organised with the ability to manage competing priorities, exercise sound judgement and work autonomously.
• A collaborative and proactive problem solver who enjoys mentoring others, driving continuous improvement and contributing to a high-performing technical team.

Eligibility

This role requires a current National Police Clearance and an Australian Defence Security Clearance. Your eligibility for this role is dependent on you obtaining and maintaining such clearance.

Whilst ASC will accept all applications for this role, as this role requires an ability to access protected US defence technology, applicants holding nationality of certain foreign countries will not be eligible.

To check your eligibility please visit the Australian Government Security Vetting Agency website.

Benefits

• Unique and challenging work with a deeper purpose.
• Flexibility over how, when and where you work for the best work/life balance.
• Up to 10 days additional leave every year so you can rest and recharge.
• Generous parental leave so you can give your family the focus it deserves.
• Subsidised childcare to ease the financial pressure on your family.
• Health and wellbeing initiatives so you can perform at your best at work.
• Discounts and exclusive offers from leading Australian brands to help you save.

Apply today for a career with a deeper purpose