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.

Located at Angle Vale, Trinity College Gawler River is an R-10 school with #students – where innovation, connection and opportunity come together every day. 

We are looking for a capable, experienced Office Manager to lead the Gawler River Administration team and ensure the School Office operates effectively. This key leadership role oversees administrative services, leads a high-performing team, and fosters a culture of professionalism, collaboration, and excellence in service delivery. Working closely with the Principal of Gawler River, the successful candidate will contribute to broader planning and improvement initiatives and represent Gawler River within the Office Administration Managers Group, ensuring alignment with the College’s standards, mission and values. You will contribute to broader College planning activities and represent Gawler River in the Office Administration Managers Group. 

What You’ll Do: 

• Lead and manage the Gawler River Administration team, ensuring a professional, welcoming and responsive service to our students, parents and community 
• Support the Principal with planning, diary management and confidential administrative support 
• Coordinate the administrative aspects of Gawler River student records and confidential data as required
• Actively contribute to the Office Administration Managers Group and collaborate with leadership across the College 
• Communicate effectively with a wide cross-section of the Gawler River school community, including students, families and staff 
• Foster a culture of continuous improvement, discretion, and service excellence. 
  Ensure quality control across administrative functions and manage multiple projects and deadlines effectively 

What You’ll Bring: 

We are seeking an experienced, collaborative, people-centred leader who thrives in a dynamic environment and enjoys building strong relationships across a diverse school community. You will bring warmth, professionalism and a solutions-focused mindset, along with: 

• Proven experience in office management and/or executive-level administration 
• Exceptional interpersonal, communication and relationship-building skills 
• Strong organisational skills and meticulous attention to detail 
• A proactive, collaborative and customer-focused approach to problem-solving 
• The ability to manage sensitive and confidential matters with the utmost discretion and professionalism 
• Experience in an education setting is highly desirable 
• Demonstrated success in leading teams and partnering effectively with senior stakeholders 
• A commitment to modelling professionalism, integrity and confidentiality at all times 

This is a full-time position working during school terms plus four weeks during term breaks, with salary pro-rated to reflect the weeks worked each year.  

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 at Gawler River, please lodge your online application via the careers page on our website.  

For enquiries about the role, please refer to the attached Position Description, or contact Lara Matters (Director Business Administration) on 8522 0666.   

Applications close on Monday, 21st September 2026 at 4pm 

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

Trinity College is an Equal Opportunity Employer

Statement of Commitment to Child Safety

Trinity College is committed to creating a safe, supportive, and child-friendly environment where all students are protected from harm and can actively participate in decisions that affect them. The College has a zero-tolerance approach to harm and prioritises the wellbeing and safety of children and young people in all aspects of its work. It is committed to maintaining a strong child-safe culture, complying with all child safety requirements, and ensuring that every member of the College community understands and fulfils their responsibility to safeguard students.