Office Manager

Trinity College is seeking an exceptional Office Manager & PA to the Director of Business Administration to lead our Central Administration team and deliver high-quality support services across our College community. With six schools under our umbrella, this role is pivotal in maintaining the efficient, professional, and welcoming operation of our College office while also providing executive-level support.

As Office Manager, you will oversee the operations of the Central Administration Office, leading a team that supports students, staff, families, and external stakeholders. You'll be responsible for the planning, delivery, and quality of administrative services that align with Trinity College's mission and values.

In your capacity as Personal Assistant to the Director of Business Administration, you will provide confidential and proactive support across a range of functions, including College Transport services, the College AGM, and other strategic and operational initiatives. You'll also contribute to broader College planning activities and represent Central Admin in the Office Admin Managers Group, including chairing meetings as required.

What You'll Do:

• Lead and manage the Central Administration team, ensuring a professional, welcoming, and responsive service.
• Support the Director of Business Administration with planning, diary management, and confidential administrative support.
• Coordinate the administrative aspects of College services, including Transport and the Annual General Meeting.
• Actively contribute to the Office Admin Managers Group and collaborate with leadership across the College.
• Communicate effectively with a wide cross-section of the College community including students, families, and staff.
• Foster a culture of continuous improvement, discretion, and service excellence.
• Ensure quality control across admin functions and manage multiple projects and deadlines effectively.

What You'll Bring:

We are looking for a collaborative leader who is highly capable and people focused. Someone who thrives in a dynamic, multi-stakeholder environment. The ideal candidate will have:

• Proven experience in office management and executive-level administrative support
• Outstanding interpersonal and communication skills
• A collaborative, problem-solving approach with strong attention to detail
• The ability to manage sensitive and confidential matters with discretion and professionalism
• Experience working in an educational setting is highly desirable, but not essential
• Demonstrated ability to lead a team and work across functions with senior stakeholders

Why work at Trinity College?

Trinity College is a multi-site, independent, co-educational Anglican College founded in a liberal educational tradition in northern Adelaide. We are open to all who want their children educated in a caring and Christian tradition regardless of economic status, ability or religious affiliation. We provide exceptional facilities, support inspirational and expert staff with a passion for education, and deliver an outstanding sense of community.

At Trinity, we believe in nurturing not only our students but also our staff. When you join our team, you become part of a community that values connection, growth, and wellbeing. Here's what you can look forward to:

• Flexible, family-friendly hours that support work-life balance
• Excellent remuneration
• Generous paid parental leave entitlements in addition to the National Employment Standards
• Generous tuition discounts eligible staff receive a discount on their children's academic fees at Trinity College schools, pro-rated to their FTE
• Free onsite parking
• Active staff social club to build friendships and community
• Fully subsidised Employee Assistance Program (EAP) for you and your family
• Discounted STARplex membership supporting staff (and their family) wellbeing and a healthy lifestyle
• Professional Development opportunities that support best practice in your profession

All Trinity College Staff must comply with the College's Child Safe Policy and adhere to the Child Safety Code of Conduct.

The successful applicant must have the right to work in Australia and will be subject to satisfactory employment screening and background checks, including Working With Children Checks and National Police Clearance. Commitment and adherence to the Trinity College Privacy Policy is required.

Ready to Join Us?

To be considered for our Office Manager & PA to Director of Business Administration, please lodge your application by clicking "Apply Now" below.

For enquiries about the role, please refer to the attached Position Description, or contact Sarah Troup (Human Resources Business Partner) on

Applications close on Monday, 20 October 2025 at 12:00pm

The College reserves the right to appoint prior to the deadline should the right applicant apply.

Trinity College is an Equal Opportunity Employer. The College has a commitment to Inclusion and Cultural Safety and Excellence in Professional Practice