We're inviting applications to join our permanent workforce at RAAF Base Williamtown as a Refrigeration/HVAC Technician.

Downer has been awarded the Property and Asset Services (PAS) contract to deliver base and estate services across their two largest regions NSW/ACT and QLD. This is a significant milestone for our business and our enduring 80+ year relationship with the Australian Defence Force.

We're inviting applications to join our permanent workforce at RAAF Base Williamtown as a Refrigeration/HVAC Technician. We're committed to building a workplace where everyone feels respected, valued, and empowered to contribute.
We're looking for people from all backgrounds - whether you bring Defence experience, industry knowledge, or transferable skills from other sectors.

If you're passionate about contributing to Defence capability and want to be part of a high-performing, inclusive team - express your interest today.

What You'll Do
This role offers a broad scope, with key responsibilities including:

- Perform scheduled, preventative and corrective maintenance on refrigeration, air conditioning and HVAC systems.
- Carry out refrigerant handling in accordance with ARCTick licensing obligations
- Provide professional and timely responses to internal and external stakeholders
- Work collaboratively with other trades and subcontracts to support operational delivery

What You'll Bring

- Certificate III Refrigeration and Air Conditioning
- ARCTick Refrigerant Handling licence (desirable)
- NSW Refrigeration and Air Conditioning Licence
- Post-trade experience in refrigeration, air conditioning and HVAC maintenance




- Demonstrated expertise in fault diagnosis and repair of refrigeration and HVAC systems
- Current Open Drivers Licence
- Ability to obtain and maintain a Defence Security Clearance (Australian citizenship is mandatory).

We're inviting applications to join our permanent workforce at RAAF Base Williamtown as a Refrigeration/HVAC Technician.

Downer has been awarded the Property and Asset Services (PAS) contract to deliver base and estate services across their two largest regions NSW/ACT and QLD. This is a significant milestone for our business and our enduring 80+ year relationship with the Australian Defence Force.

We're inviting applications to join our permanent workforce at RAAF Base Williamtown as a Refrigeration/HVAC Technician. We're committed to building a workplace where everyone feels respected, valued, and empowered to contribute.
We're looking for people from all backgrounds - whether you bring Defence experience, industry knowledge, or transferable skills from other sectors.

If you're passionate about contributing to Defence capability and want to be part of a high-performing, inclusive team - express your interest today.

What You'll Do
This role offers a broad scope, with key responsibilities including:

- Perform scheduled, preventative and corrective maintenance on refrigeration,



air conditioning and HVAC systems.
- Carry out refrigerant handling in accordance with ARCTick licensing obligations
- Provide professional and timely responses to internal and external stakeholders
- Work collaboratively with other trades and subcontracts to support operational delivery

What You'll Bring

- Certificate III Refrigeration and Air Conditioning
- ARCTick Refrigerant Handling licence (desirable)
- NSW Refrigeration and Air Conditioning Licence
- Post-trade experience in refrigeration, air conditioning and HVAC maintenance
- Demonstrated expertise in fault diagnosis and repair of refrigeration and HVAC systems
- Current Open Drivers Licence
- Ability to obtain and maintain a Defence Security Clearance (Australian citizenship is mandatory).

More than anything, you'll bring a strong work ethic, a positive attitude, and a commitment to delivering high-quality outcomes for our clients.

Why Downer?

At Downer, we plan, create, and sustain essential public services across Australia and New Zealand. From hospitals to data centres and defence partnerships, we manage critical infrastructure that keeps communities thriving.

Downer is a sovereign-owned, ASX-listed Australian company and proud recipient of the Estate & Infrastructure Business of the Year (2025) and Prime Contractor of the Year for two consecutive years (2024, 2025). With over 80 years of support to the Australian Defence Force (ADF), our Base and Estate Management team delivers innovative solutions and integrated services to both the ADF and Recent Zealand Defence Force (NZDF).

What It Means to Belong at Dow

📌 Defence Base Refrigeration (Port Stephens)
🏢 Downer
📍 Port Stephens