Principal Mechanical Engineer

Location: Melbourne, VIC

About the Role

Due to significant contract awards within our ANZ Water business, we are expanding our Water Infrastructure Team in Melbourne, VIC. Our Water Infrastructure group provides essential services to a diverse range of clients, focusing on water and wastewater treatment, dams, asset management, major conveyance, industrial, civil infrastructure, mining, and defense sectors. We are dedicated to supporting sustainable outcomes for our clients and the communities they serve.

How You’ll Make a Difference

- Prepare feasibility studies, outline designs, detailed designs, and construction support.
- Produce plant layouts, design drawings, and mechanical plant selections, including specifications, WIMES Data Sheets, valve schedules, equipment schedules, lifting strategies, hydraulic headloss calculations, and P&IDs; for water projects.
- Collaborate with our water and other discipline teams, including civil, electrical, process, and mechanical engineers nationwide.
- Conduct site visits to perform surveys and liaise with clients, contractors, and suppliers.
- Participate in and contribute to design review meetings such as HAZOPs, HAZIDs, ALMs, and SWIFTS.

Qualifications

- A degree (or equivalent) in Mechanical Engineering.




- Progress toward Chartered status with a relevant institution (e.g., IMechE or Engineers Australia).
- Proven ability to deliver engineering designs, reports, drawings, technical specifications, and calculations with confidence and precision.
- Hands‑on experience delivering innovative solutions for water and wastewater engineering projects.
- Proficiency in hydraulic modelling and related software (mechanical or civil), including network hydraulic grid modelling, adding current connections, assessing overall grid performance, and transient/surge modelling.

Benefits

- Flexible work arrangements, including alternative start/finish times, part-time, job‑sharing, and hybrid work options.
- Purchase up to 6 weeks of additional annual leave per year.
- Volunteer and representation leave.
- Flex public holidays—swap Easter or other holidays for those that suit you better.

We welcome applications from individuals of all backgrounds, including those with disabilities, additional health or mental health needs, and/or neurodiverse conditions. If you require any adjustments during the hiring process, please let us know.

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📌 Principal Mechanical Engineering - Water Infrastructure (Melbourne)
🏢 Aecom
📍 Melbourne