Senior HVAC/R Controls & BMS Support Engineer

Katz Recruitment; Sydney; On-site; AUD 110,000 - 150,000; Full time

Job summary

Katz Recruitment is seeking an experienced Refrigeration/HVAC professional for a senior Technical Support role focused on BMS, controls and CO2 systems in Sydney. You’ll move from hands-on field work to specialised technical support while leveraging your refrigeration expertise.

Role involves customer interaction, commissioning support, and collaboration with international teams. Office-based with occasional site visits; transport and relocation support may be discussed.

Qualifications

• Certificate III in Air Conditioning & Refrigeration or equivalent HVAC/R qualification.
• Qualified Refrigeration Mechanic or HVAC/R Engineering background.
• Minimum 4 years’ experience within the HVAC and refrigeration industry.
• Strong understanding of commercial refrigeration, particularly CO2 systems.
• Experience with refrigeration controls, monitoring or supervisory systems.
• Strong knowledge of BMS, communication networks and control system integration.
• Strong technical troubleshooting, analytical and problem‑solving capability.
• Advanced proficiency with Microsoft 365 applications.
• Confidence working with technical drawings and documentation.
• Strong verbal and written communication skills.
• Strong customer service focus and professionalism.
• Ability to work independently while collaborating effectively with technical and commercial teams.
• A proactive mindset and willingness to learn new products, software tools and technologies.
• Experience with Java and/or HTML scripting would be advantageous.

Responsibilities

• Provide technical support via phone, email, remote access and occasional customer site visits.
• Support commissioning, configuration and troubleshooting of control and monitoring solutions.
• Troubleshoot commercial refrigeration control systems, including CO2 applications.
• Assist customers with product selection and application support.
• Provide after‑sales technical support and warranty assistance.
• Conduct warranty assessments and root cause analysis.
• Develop and maintain supervisory graphics, BMS layouts and monitoring configurations.
• Support integration of refrigeration controls with BMS and communication networks.
• Deliver customer training and technical presentations.
• Attend customer sites when required to support commissioning, troubleshooting and technical service.

Skills

HVAC/R experience

CO2 refrigeration

BMS integration

Troubleshooting

MS 365

Java scripting

HTML scripting

Technical documentation

Customer communication

Education

Certificate III in HVAC/R

Tools

Microsoft 365

Job description

Katz Recruitment is seeking an experienced Refrigeration/HVAC professional for a senior Technical Support role focused on BMS, controls and CO2 systems in Sydney. You’ll move from hands-on field work to specialised technical support while leveraging your refrigeration expertise.

Role involves customer interaction, commissioning support, and collaboration with international teams. Office-based with occasional site visits; transport and relocation support may be discussed.