About the business and the role

Ambient Services Group is an all-in-one commercial asset maintenance provider serving metropolitan Sydney. We work behind the scenes on some of the city’s biggest buildings, offering everything from long-term asset management to emergency spot repairs.

Due to continued business growth, we are seeking an experienced Mechanical Services Engineer to join our team, undertaking a key technical role across our HVAC construction projects and facilities services portfolio.

Job tasks and responsibilities

- Provide technical engineering support and oversight across commercial HVAC projects and critical building infrastructure.
- Oversee preventative maintenance, statutory compliance and specialist contractors across mechanical and associated building services.
- Manage critical engineering activities, including planned shutdowns, equipment maintenance and operational risk assessments.
- Undertake HVAC design, design reviews, equipment selections and technical coordination across commercial fitout and central plant upgrade projects.
- Provide engineering support throughout the project lifecycle, from tender and design through construction, commissioning and handover.
- Investigate technical faults, undertake root cause analysis and implement improvements to asset reliability and operational efficiency.
- Assist with estimating, value engineering, procurement and technical submissions.
- Provide technical input into asset lifecycle planning, CAPEX/OPEX budgets and infrastructure upgrades.
- Liaise with clients, consultants, builders and subcontractors to ensure successful project delivery.




- Support the development of engineering standards, quality assurance processes and continuous improvement initiatives.

Skills and experience

- Degree in Mechanical Engineering, Building Services Engineering or a related discipline.
- Minimum 5 years' experience in commercial HVAC engineering, building services consulting, D&C; contracting or critical facilities.
- Strong technical knowledge of commercial HVAC systems, mechanical services design and central plant infrastructure.
- Demonstrated experience in HVAC design, equipment selection, technical documentation and engineering coordination.
- Sound understanding of Australian Standards, NCC requirements and relevant building services regulations.
- Experience managing specialist contractors and coordinating multidisciplinary building services.
- Robust technical problem-solving skills, including fault investigation and root cause analysis.
- Commercial awareness, including estimating, tender reviews, value engineering and lifecycle budgeting.
- Excellent communication, stakeholder management and organisational skills.
- Ability to work independently, exercise sound judgement and represent the business professionally.
- Experience within critical environments, including financial institutions, data centres or healthcare facilities, will be highly regarded.
- Full Australian working rights.

Job benefits and perks

- Competitive Salary + Car Allowance + Phone + Laptop
- Leadership Role with Autonomy and Career Progression
- Work with Top-Tier Commercial Clients on High-Profile Projects

📌 Mechanical Services Engineer – Critical Facilities & HVAC Projects (Hillsdale)
🏢 Ambient Services Group
📍 Hillsdale