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 conventionally armed, 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
We are seeking an Adelaide based (or willing to relocate) experienced Senior Systems Administrator, for a 2-year fixed term contract, to play a key role in the design, operation, security, and continuous improvement of our enterprise IT infrastructure. Based out at our Osborne, site reporting to the PMO Project Delivery Manager you will be a technical subject matter expert supporting a hybrid environment across on‐premises and cloud platforms.
This is a senior, hands‐on role responsible for ensuring the availability, performance, and security of mission‐critical systems that support ASC's operational and strategic objectives within a highly regulated defence environment.
Responsibilities
* Design, implement, administer, and support on‐premises and cloud infrastructure, including hybrid environments
* Act as a technical SME for infrastructure, servers, and cloud platforms
* Lead upgrades, migrations, patching, and lifecycle management activities
* Administer and support Microsoft technologies, including Active Directory, O365, Azure, Intune, and virtualisation platforms
* Manage Azure services including virtual machines, Azure Virtual Desktop, and networking
* Implement and maintain monitoring, logging, and alerting solutions
* Manage certificate lifecycles and backup/disaster recovery activities
* Ensure systems comply with cyber security and governance frameworks such as PSPF, ISM, NIST, ISO 20001
* Work closely with internal stakeholders and third‐party vendors (e.g. Microsoft, HP)
* Support incident response, problem management, and change activities
* Drive continuous improvement initiatives to enhance efficiency, performance, and security
About you
You are a highly capable and organised senior systems professional (minimum 5 years experience in System Admin) who thrives in complex, high‐assurance environments. You bring strong technical expertise, sound judgement under pressure, and the ability to work autonomously while collaborating effectively across teams.
You will also demonstrate:
* Strong written and verbal communication and stakeholder engagement skills
* Proven experience managing critical incidents and competing priorities
* A proactive, improvement‐focused mindset that can prioritise workload from an ever‐changing list
* The ability to explain complex technical concepts to non‐technical audiences
* SQL knowledge
* Confluence, JIRA and cloud experience (is a bonus but not essential)
* Previous experience working in the defence industry is preferred but not essential
* Bachelors Computing degree or equivalent industry experience
* Minimum 5 years' experience supporting enterprise Microsoft domains, virtualisation, and storage environments
* Strong experience with:
o Microsoft Server technologies
o Azure and hybrid cloud environments
o Virtualisation platforms and enterprise storage
o Cyber risk assessment and security controls
* Experience working within regulated environments governed by security and compliance frameworks
* Technical documentation and reporting experience
Certifications (highly regarded)
* Microsoft or equivalent industry certifications
Eligibility
* This role requires a current National Police Clearance and an Australian Defence Security Clearance to a Baseline level. Your eligibility for this role is dependent on you obtaining and maintaining such clearance.
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
* Professional development opportunities to advance your career
* A diverse and supportive environment where you can thrive
* Discounts and exclusive offers from leading Australian brands to help you save
* Relocation support for you and your family, whether you're from interstate or overseas
About ASC
ASC's 2,400‐plus staff offer a depth of submarine design, project management, supply chain, construction and engineering experience and expertise that is unparalleled in Australia's defence industry. Established in 1985, the company's work on Australia's conventionally armed, nuclear‐powered submarine build and the Collins Class Life of Type Extension takes place in Osborne, South Australia, with sustainment shared across Osborne and Henderson, Western Australia. ASC also plays a leading role in training Royal Australian Navy submariners.
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