About the Company

Mitsubishi Heavy Industries Air-Conditioners Australia (MHIAA) is one of Australia’s leading suppliers of premium residential and commercial air conditioning and air to water heat pump systems. In a short 25 years the company has pushed the boundaries within the HVAC industry, winning multiple awards and accolades including being recognised by CHOICE®, as Australia’s Best Brand of Air Conditioner for six (6) years in a row. As the most independently awarded brand of Air Conditioners, they are the Experts in Air.

The Opportunity

We’re looking for an experienced Office Administrator to join MHIAA at our Regents Park head office in Sydney on a 12-month fixed-term contract, with a view to permanent.

This role sits within the People & Culture team and reports to the Facilities & Administration Manager. You’ll provide broad administration and office support across the business, including reception coverage, corporate travel, fleet coordination, office catering, facilities management and day-to-day office requirements. You’ll work with people across the organisation and external service providers to keep the office running smoothly and professionally.

Standard hours are 9:00am–5:00pm. From time to time, you’ll also be required to work 8:00am–4:00pm or 10:00am–6:00pm to help cover reception during team leave. After successfully completing probation, hybrid working arrangements are available with two days per week working from home.

What You’ll Be Doing

• Provide day-to-day administration support across the business and help keep office operations organised.

• Coordinate corporate travel arrangements and liaise with employees and travel providers as required.

• Support fleet administration, including coordinating vehicle-related information, suppliers and general fleet requirements.

• Raise and manage purchase orders and follow up on office-related purchasing and supplier requirements.

• Coordinate office catering,



team lunches, internal events and training requirements.

• Manage office supplies, stationery, couriers and general facilities requirements.

• Answer incoming calls, assist with reception coverage and direct enquiries to the appropriate team.

• Respond to internal and external enquiries professionally, escalate issues when needed and maintain accurate records.

What We’re Looking For

• At least 2 years’ experience in office administration, coordination or a similar support role.

• Experience working in a white-collar corporate environment.

• Hands-on experience arranging corporate travel.

• Previous fleet administration or fleet coordination experience.

• Experience organising office catering, staff functions or internal events.

• Confidence raising and managing purchase orders, with strong attention to detail.

• Strong Microsoft Office skills and the ability to learn business systems quickly.

• Explicit, professional communication skills with a customer-focused approach and the ability to manage competing priorities.

Desirable

• Prior exposure to Microsoft Dynamics 365 Business Central.

• Experience within a manufacturing, technical or product-based business.

Why Join MHIAA?

• Ongoing learning and development opportunities to support your career growth

• Access to our Employee Assistance Program (EAP)

• A collaborative, supportive culture that values inclusion and innovation

• Monthly team lunches and a friendly team environment

• Hybrid working arrangements with two days per week from home after successfully completing probation

Next Steps:

If you’re an organised administrator who enjoys keeping people, suppliers and office operations on track, apply now to join MHIAA in Regents Park.

Please note: the successful candidate will be required to undergo relevant background checks, which may include a National Police Check, VEVO Check, and professional references.

Learn more about us at www.mhiaa.com.au

📌 Office Administrator (Regents Park)
🏢 Mitsubishi Heavy Ind Airconditioning
📍 Regents Park