Senior Mechanical Engineer / Associate – Building Services

Sydney, NSW |

Take the next step with an established, growing multidisciplinary engineering consultancy.

Our client is seeking an experienced Senior Mechanical Design Engineer or Associate to join its growing Sydney team. This is an excellent chance for a building services professional looking to take ownership of technically interesting projects, work with a strong multidisciplinary team and play an important role in the continued growth of the mechanical engineering division.

The Opportunity

You will work across a diverse portfolio of building services projects, with a particular focus on defence, government and healthcare infrastructure.

Projects include:

- Defence and government facilities.
- Correctional facilities and police stations.
- Public and private hospitals.
- Aged care and healthcare facilities.
- Residential developments.
- Commercial fit-outs and retail projects.

You will be involved throughout the project lifecycle, from initial design and engineering calculations through to documentation, coordination and construction delivery.

Depending on your experience, there is scope to join at Senior Engineer or Associate level, with opportunities to take on greater technical, client-facing and leadership responsibilities.

Key Responsibilities

- Lead and deliver mechanical building services design across a diverse range of projects.
- Undertake HVAC design, calculations, equipment selection and system sizing.
- Prepare and review mechanical engineering documentation, drawings and specifications.
- Coordinate mechanical designs with electrical, hydraulic, fire, structural and civil engineering disciplines.
- Liaise directly with clients, architects, contractors and other project stakeholders.
- Provide technical guidance and mentoring to junior and mid-level engineers.
- Manage project deliverables, budgets, timeframes and technical quality.




- Attend client meetings and contribute to project planning and delivery.
- Support the continued development and growth of the mechanical engineering team.

For Associate-level candidates: There will also be an expectation to manage and develop people, oversee project delivery and build strong client relationships.

About You

To be successful in this position, you will ideally have:

- A degree in Mechanical Engineering or equivalent.
- Strong experience within the building services engineering sector.
- Solid Australian building services consulting experience.
- Demonstrated HVAC design and mechanical services engineering experience.
- Experience working on projects such as hospitals, defence, government, commercial or residential developments.
- Proficiency in mechanical design and load calculation software, such as CAMEL, Carrier HAP or IES.
- Strong understanding of Australian building codes, standards and industry requirements.
- Excellent communication and client-facing skills.
- The ability to work autonomously and contribute to a collaborative engineering team.

Candidates from a building services design consultancy background are preferred, although experienced mechanical engineers from a contractor background will also be considered.

With a national workforce of approximately 450 employees and a strong presence across NSW, Queensland and South Australia, they offers the resources and project exposure of an established consultancy while maintaining a collaborative and accessible working environment.

What's on Offer?

- Salary: $130,000–$200,000 package, depending on experience and seniority.
- Flexible working arrangements, with a hybrid working model.
- Three days working from the office and two days from home once established, subject to probation arrangements.
- Exposure to major defence, government, healthcare and commercial projects.
- A strong multidisciplinary engineering team.
- Opportunities to progress into Associate and senior leadership positions.
- A supportive environment with genuine opportunities for career development.

📌 Senior Mechanical Design Engineer (Sydney)
🏢 Atom Resources
📍 Sydney