Principal Mechanical Engineer, Building Services – Defence

Andurilindustries; Sydney; Hybrid; AUD 180,000 - 240,000; Full time

Benefits offered by this job

Hybrid work options

Flexible start times

Additional annual leave

Job summary

AECOM in Sydney seeks a Principal Mechanical Engineer to lead the Building Services team on complex projects across NSW/ACT and ANZ. You’ll guide multi-disciplinary design, ensure technical quality, and drive strategic relationships with clients.

You will coach junior engineers, oversee design documentation, and contribute to business growth while delivering high-profile projects in health, defence, transport and commercial sectors.

Qualifications

• Ideally, 10+ years’ experience in building services consultancy or contracting design.
• Chartered status (CPEng) essential; other registrations highly regarded.
• Experience in technical design and multi-disciplinary project delivery.
• Ability to mentor junior engineers and lead design documentation.

Responsibilities

• Lead the delivery of complex, multi-disciplinary projects across sectors such as health, defence, transport, commercial, aviation, data-centre or other major building sectors around NSW/ACT.
• Lead mechanical and multi-discipline building services design and end-to-end project delivery, including oversight of technical quality, coordination and design management across other disciplines such as electrical, fire protection and hydraulics.
• Actively build and maintain strong client relationships to support business development and further secure a robust pipeline of future work.
• Collaborate effectively within multi-disciplinary engineering teams, applying deep technical expertise to drive quality outcomes through rigorous review of design calculations, specifications, models and drawings, ensuring best-practice documentation and coordinated project outputs.
• Provide coaching and mentoring to junior and intermediate engineers, contributing to their technical development and supporting high-quality design documentation and project delivery.

Skills

Technical design

Multi-disciplinary leadership

Client relationship management

Mentoring

Communication

Education

Chartered status (CPEng)

Job description

AECOM in Sydney seeks a Principal Mechanical Engineer to lead the Building Services team on complex projects across NSW/ACT and ANZ. You’ll guide multi-disciplinary design, ensure technical quality, and drive strategic relationships with clients.

You will coach junior engineers, oversee design documentation, and contribute to business growth while delivering high-profile projects in health, defence, transport and commercial sectors.