Australian Naval Infrastructure Pty Ltd (ANI) is the owner, developer and manager of the Osborne Naval Shipyards, supporting the Commonwealth’s Naval Shipbuilding Plan. ANI is responsible designing, constructing and managing the shipyard infrastructure, including the new Nuclear-Powered Submarine Construction Yard to support the AUKUS program, and operating and maintaining common use facilities.
ANI is seeking a motivated and capable Administration Officer
to join the Integrated Delivery Office (IDO) team in the Adelaide CBD.
This role will act as the second-in-charge within the administration function, supporting the day-to-day operations of the office while providing additional coordination support across the team. It is well suited to an experienced administrator who is looking to step into a more senior position and grow their career within a dynamic and high-profile environment.
The role may also include supporting security-related activities, such as escorting visitors and contractors when required.
Your key responsibilities will include:
- Providing high-quality administration support and customer service delivery across four floors of the tenancy
- Managing visitor access, meeting room coordination, and catering logistics.
- Assisting with procurement, invoicing, expense reconciliation, and travel arrangements.
- Supporting the onboarding of new staff and maintenance of IDO documentation.
- Coordinating office activities and contributing to a positive team culture.
- Using initiative and sound judgement to problem solve day-to-day operational challenges efficiently and independently.
- Maintaining strong working relationships across ANI corporate and project teams.
You are an organised and proactive administrator who enjoys taking ownership and supporting the smooth running of a busy office environment. You bring strong communication skills, attention to detail, and a genuine focus on delivering excellent service.
You are equally comfortable welcoming senior visitors, coordinating meetings, or supporting colleagues across the business. You enjoy variety, take initiative, and are motivated by opportunities to grow and develop your career.
You present yourself professionally and confidently, maintaining a polished and approachable manner within a corporate Defence environment.
You will also have:
- 3 - 5+ years’ experience in an administration, office coordination, or executive support role
- Strong written and verbal communication skills.
- Proficiency with MS Office 365 and corporate systems such as TechOne, Desirable.
- A proactive and adaptable approach with strong organisational skills.
- Demonstrating behaviours that align with ANI’s values, fostering a culture of integrity, collaboration, and accountability across all interactions.
Applicants MUST be Australian citizens and either hold or be able to gain and maintain a Baseline security clearance. Applicants will be required to consent to background checks.
Application Information:
To apply, click the ‘Apply’ button and follow the prompts, include a cover letter ¤nt resume.
Applications close: 5pm, 31 March 2026.
For further enquiries about this opportunity, please contact Ariel Winters via email at ariel.winters@harrisonmcmillan.com.au


