Mechanical Services Engineer - Critical Facilities & HVAC Projects

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.

Strong 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 advantages 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 (Sydney)
🏢 Ambient Services Group
📍 Sydney