Administration Assistant – Middle School

Summer Hill | 12.00pm–5.00pm, Monday to Friday | 39 (term time only) or 44 weeks per year Full-time Equivalent Salary: $81,360–$87,309 | Commencing late January 2027

Trinity Grammar School is seeking an engaging, reliable and highly organised Administration Assistant to support the Middle School Office and provide professional Front of House assistance at our Summer Hill Campus.

This is a varied, hands-on role supporting the smooth day-to-day operation of the Middle School. You will provide administrative support across student activities, camps, reporting and records, assist with Middle School events and provide professional Front of House support for the wider School community.

We are looking for someone who enjoys being part of a positive, high-functioning team and gets genuine satisfaction from helping students and colleagues have a great day. You will be organised, dependable and attentive to detail, but equally significant will be your willingness to pitch in, support others and contribute to the energy and daily life of the Middle School.

Why Trinity?

At Trinity, we want to be a workplace of choice, attracting people who are excellent at what they do and who want to contribute to a robust, values-driven community.

This role offers an attractive opportunity for an experienced administrator seeking meaningful professional work that can sit alongside family, study, lifestyle or other personal commitments.

Trinity Grammar School provides boys with a thoroughly Christian education in mind, body and spirit, and employees are expected to positively support the traditions, values and Christian ethos of the School.

What we offer

- Family-friendly hours: 12.00pm to 5.00pm, Monday to Friday.
- Workplace of choice: join a professional, supportive Christian School community where your contribution is visible and valued.
- Variety: your day might move between Middle School administration, student records, camps, reports, events and Front of House support.
- Autonomy:



ideal for someone who enjoys taking ownership of their work and keeping things moving.
- Community: work on-site as part of the daily life of a busy and highly engaged School.

This is an on-site position at our Summer Hill Campus, with no remote-working arrangement available. Hours will ordinarily be 12.00pm to 5.00pm Monday to Friday, although some flexibility may occasionally be required to meet operational needs.

What you’ll be doing

Working closely with the Middle School team, you will provide practical administrative support across several important areas, including:

- supporting the administration and day-to-day operation of the Middle School
- providing welcoming and skilled Front of House and telephone support to students, parents, staff and visitors.
- assisting with Middle School events, student activities and reporting
- maintaining accurate attendance, consent, risk and compliance documentation for camps, excursions and the Field Studies Program
- maintaining accurate records and databases, checking information and resolving discrepancies

You will ideally be someone who:

- is extremely reliable, punctual and dependable
- has a polished and professional presentation and communication style
- demonstrates exceptional attention to detail and notices when something does not look right
- works confidently and independently, while knowing when to ask or escalate
- takes ownership of tasks and follows them through to completion
- can manage interruptions and competing priorities without losing accuracy
- communicates warmly and professionally with students, parents, staff and visitors
- exercises discretion and maintains confidentiality




- is proficient in Microsoft 365 and confident learning School administration and database systems. Previous administration experience is essential, while experience within a school, education, student administration, reception or another busy multi-stakeholder environment would be particularly valuable.

The position requires a valid NSW Working With Children Check in employment status and First Aid/CPR qualifications, or willingness to obtain them.

Flexibility that works for you

We recognise that flexibility looks different for different people. This position can be structured to work either 39 weeks (term time only) or 44 weeks per year, plus four weeks’ annual leave, depending on the preference of the successful applicant. This provides the opportunity to choose the working arrangement that best suits your family, lifestyle and personal commitments.

The full-time equivalent salary range is $81,360 to $87,309 per annum, with salary paid pro rata according to the number of weeks worked. Your actual salary will therefore reflect whether you choose the 39 week or 44 week working arrangement.

Combined with the regular 12.00pm to 5.00pm, Monday to Friday hours, this is an attractive opportunity for someone seeking meaningful, professional work while maintaining greater flexibility around life outside work.

Applications close 8am Thursday 19 November 2026.

At Trinity, people matter. While technology supports many aspects of our work, we believe recruitment should remain genuinely human. Your application will be considered by people, not selected by an algorithm or AI, because we want to understand the person, experience and potential behind every application.

In the same spirit, we encourage candidates to prepare their application in their own words rather than relying on AI to generate it for them. We are interested in hearing your voice, understanding your experience and getting a genuine sense of what you would bring to Trinity.

📌 Administrative Assistant - Middle School (Summer Hill)
🏢 Trinity Grammar School Summer Hill
📍 Summer Hill