Location: Sydney The Opportunity A national multidisciplinary engineering consultancy working across residential, commercial, and mission critical infrastructure seeks a Mechanical Services Engineer to join its growing team. The successful candidate will contribute to a strong pipeline of projects for high-profile clients across Australia, including data centres and other mission critical environments. Responsibilities Deliver design, documentation, and engineering support for mechanical services (HVAC, building systems) in residential, commercial, and mission-critical projects Work collaboratively with electrical, fire, and sustainability specialists to deliver innovative, efficient building solutions Provide input from concept design through to construction phase, including site inspections and commissioning Liaise with architects, builders, and subcontractors to resolve technical challenges and maintain project schedules Participate in value engineering, technical analysis, and performance reviews to optimise building systems Support the development of high-performance solutions for data centre and mission-critical assets Key Requirements Bachelors degree in Mechanical Engineering or related discipline Proven experience delivering mechanical services for building projects (min. 3 years preferred) Strong working knowledge of HVAC design, sustainability standards (Green Star, NABERS), and BCA/NCC codes Experience with mission critical/data centre projects highly regarded Proficient in mechanical design software (e.g., AutoCAD, Revit, CAMEL) Strong communication skills and ability to work as part of a multidisciplinary team Ability to manage multiple projects and stakeholder relationships concurrently Benefits Varied pipeline including residential, commercial, and mission-critical Professional development and progression opportunities Flexible working arrangements This role offers the chance to work on landmark developments and play a key part in the growth of mission critical solutions in Australia's engineering landscape.