Senior Mechanical Engineer, Maritime Defense Systems

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

Principal Mechanical Engineer (Building Services) – AECOM

At AECOM, we’re delivering a better world. Our work helps people and communities thrive. With accelerating infrastructure investment worldwide, our services are in great demand.

Due to continued growth, we are looking for an experienced Principal Mechanical Engineer to help lead and grow the Building Services team in Sydney.

This role presents a unique opportunity to join our national Building Engineering team, delivering iconic projects across ANZ and a variety of market sectors, while still focusing on growing and developing the local team in Sydney.

How you’ll make a difference

• 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.

Qualifications

The following qualifications and experience are highly desired, but if you don’t tick all the boxes, you could still be a perfect fit for this role. All applications will be considered.

• Ideally, 10+ years’ experience in building services consultancy or contracting design with a strong mechanical engineering background. Chartered status (CPEng) essential, other registrations highly regarded.
• Demonstrated experience in technical design and multi‑disciplinary project delivery.
• Deep knowledge of building services systems, standards and best‑practice design, with the ability to guide clients, mentor junior engineers and provide technical direction across complex project environments.
• Proven ability to manage multiple concurrent projects, lead multi‑discipline bids for building engineering projects, and collaborate effectively with senior leaders to support business development and operational performance.
• Proven track record of enhancing long‑term client relationships and working across key sectors such as data centres, commercial, aviation, defence or broader building markets.
• Strong communicator and leader with a passion for growing teams, coaching emerging engineers and driving quality, innovation and continuous improvement within the building services team.

Why you’ll love working with us

• Be part of a nationally recognised, global engineering business.
• Work on high‑profile, technically challenging projects across key sectors across ANZ.
• Join a collaborative culture and work with teams across ANZ.
• Flexible work arrangements, including alternative start/finish times, job‑sharing and hybrid work options.
• Purchase up to 6 weeks additional annual leave per year.
• Flex public holidays – swap Easter or other holidays for ones that suit you better.
• Continuous learning and growth – lunch and learns, professional development courses, financial study assistance, 5 days paid study leave, global career opportunities.

EEO statement

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.