Principal / Associate Director - Mechanical Engineer (Buildings)

Our global portfolio of work comprises the design of iconic and award-winning buildings and landscapes. From strategic planning through to project realisation, the connections we make among people and place provide sustainable outcomes for our clients and the communities we serve. We place a premium on investing in digital capabilities and innovations which bring a unique consistency and efficiency to our scalable work. Together with our clients, we are working to evolve and elevate the built environment across sectors including social infrastructure, transit, technology and logistics, and commercial and corporate real estate, while focusing on solutions that promote long term health and wellbeing for all.

Everyone belongs at AECOM

We’re committed to diversity, equity, inclusion, and belonging - because great ideas come from diverse perspectives. AECOM is proud to be a Fortune 500 Most Admired Company, a WGEA Employer of Choice for Gender Equality, Work180 Equitable Workplace Awards 2025 Winner and an AWEI Bronze Tier LGBTQ+ Inclusive Employer.

Job Description

Due to strategic growth, we are looking for an Associate Director or Principal level Mechanical Engineer to join our Building Engineering team, based in Sydney. This opportunity is ideal for a well-connected industry professional who brings deep technical expertise, strong client engagement skills and experience delivering complex building engineering projects across multiple sectors.

How you’ll make a difference:

- Lead mechanical design and delivery for major client projects, from concept through to completion.
- Apply your extensive design experience to deliver innovative, practical and cost-effective solutions across projects of varying size, scope and complexity.
- Participate in technical reviews and design assurance, ensuring project deliverables meet the highest standards.
- Work collaboratively within multidisciplinary engineering teams, contributing to interdisciplinary reviews and project outcomes.
- Build strong relationships with clients and stakeholders, helping to drive successful project delivery.
- Mentor and develop junior engineers, sharing your technical knowledge and supporting the growth of our local and national teams.
- Undertake quality control reviews of design calculations, drawings and technical documentation.

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. Please apply, all applications will be considered.

- Chartered Engineer with relevant skilled engineer registration, or transferrable RPEQ/RPEV registration. Equivalent recognition with a relevant professional body will also be considered.
- Ideally, 11+ years’ experience in a Building Services consultancy or significant design experience within the Mechanical Contracting field.
- Proven record in technical design and project delivery while building and maintaining strong client relationships.
- In-depth knowledge of Building Services projects and Standards, able to share technical expertise with clients, junior engineers, and broader teams across major projects.
- Experience managing multiple technical projects simultaneously, with demonstrable design experience across a variety of market sectors.
- Excellent communication and soft skills, with a passion for mentoring and developing junior engineers.

Due to the nature of projects, Australian Citizenship is required, with current / previously held defence clearance highly regarded.

Additional Information

Why you’ll love working with us

- 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

Ready to push the limits of what’s possible?

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.

At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

AECOM acknowledges the Traditional Owners and Custodians of the lands on which we, our clients and our communities live and work around Australia.



We pay our respects to their cultures and to their Elders – past, present, and emerging. We are committed to connecting to Country in our work through meaningful engagement with First Nations peoples and businesses. Find out more about our Australian Reconciliation Action Plan here: AECOM

AECOM is the world’s trusted infrastructure consulting firm, delivering qualified services throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, recent energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 500 firm and its Professional Services business had revenue of $16.1 billion in fiscal year 2025.

Freedom to Grow in a World of Opportunity

You will have the flexibility you need to do your best work with hybrid work options. Whether you’re working from an AECOM office, remote location or at a client site, you will be working in a dynamic environment where your integrity, entrepreneurial spirit and pioneering mindset are championed.

You will help us foster a culture of equity, diversity and inclusion – a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients.

AECOM provides a wide array of compensation and benefits programs to meet the diverse needs of our employees and their families. We also provide a robust global well-being program. We’re the world’s trusted global infrastructure firm, and we’re in this together – your growth and success are ours too.

Join us, and you’ll get all the benefits of being a part of a global, publicly traded firm – access to industry-leading technology and thinking and transformational work with big impact and work flexibility. As an Equal Opportunity Employer, we believe in each person’s potential, and we’ll help you reach yours.

Director, Mechanical Engineer - Water Infrastructure

Company Description
Having worked over 20 years, in both consultancies and council, my experience working at AECOM has been refreshing and motivating – Dominique Keirens, Sector Manager - Water Infrastructure, SEQ
Come grow with us.
Balancing the world’s need for safe, reliable water with protecting this critical natural resource for the future requires a deep understanding of interconnected systems.
We work with clients across the entire project life cycle - from initial planning studies through final construction and operations and maintenance services - on both traditional and alternative project-delivery options (design-build, public-private partnerships and financing).
With a robust design and construction division, AECOM offers a unique perspective on designing projects that are fully constructible.
Everyone belongs at AECOM
We're committed to diversity, equity, inclusion, and belonging - because great ideas come from diverse perspectives. AECOM is proud to be a Fortune 500 Most Admired Company, a WGEA Employer of Choice for Gender Equality, Work180 Equitable Workplace Awards 2025 Winner and an AWEI Bronze Tier LGBTQ+ Inclusive Employer.
Job Description
AECOM’s Water Infrastructure group is currently seeking an engaging and collaborative Mechanical Director to join our team, based in either our Sydney or Newcastle offices.
This role will give you the chance to network across all areas of the business and with our leading specialists in Australia and New Zealand and globally, building your professional profile and carving a career pathway that will make a difference.
How you’ll make a difference
Lead and review mechanical design delivery across major water, wastewater, and conveyance projects.
Ensure technical and delivery excellence, maintaining the highest standards of quality, safety, governance, and client satisfaction.
You will guide and mentor engineers and designers, contributing to the growth of our talent pipeline whilst focusing on technical excellence.
Build and maintain strong relationships working with various clients across a range of sectors.
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. Please apply, all applications will be considered.
The qualities that help you thrive
Bachelor’s degree in Mechanical Engineering, with CPEng highly regarded.
Extensive mechanical design experience in water and/or wastewater projects within a dynamic consulting and design environment.
Proven ability to lead complex projects and multidisciplinary teams, using strong commercial acumen and business analysis skills to deliver successful outcomes.
Exceptional written and verbal communication skills with an ability build relationships and engage with a diverse range of stakeholders at varying levels.
Commercial and strategic acumen, with the ability to make informed decisions that balance profitability, efficiency, and market insight.
Additional Information
Why you’ll love working with us
Flexible work arrangements, including alternative start/finish times, part-time, job-sharing and hybrid work options
Purchase up to 6 weeks additional annual leave per year
Volunteer and representation leave
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
Ready to push the limits of what’s possible?
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.
Applications are reviewed as they come in, and the role may close earlier than expected, so if this opportunity sounds like you, we encourage you to apply as soon as possible.
Learn more about life at AECOM: LinkedIn, Facebook, Instagram, X, YouTube - explore our AECOM voices, employee stories, latest projects, and much more!
At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously.To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.
AECOM acknowledges the Traditional Owners and Custodians of the lands on which we, our clients and our communities live and work around Australia. We pay our respects to their cultures and to their Elders - past, present, and emerging. We are committed to connecting to Country in our work through meaningful engagement with First Nations peoples and businesses. Find out more about our Australian Reconciliation Action Plan here: AECOM

AECOM is the world's trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle - from advisory, planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical and digital expertise, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. AECOM is a Fortune 500 firm and its Professional Services business had revenue of $16.1 billion in fiscal year 2025. See how we are delivering sustainable legacies for generations to come at aecom.com and @AECOM.

Freedom to Grow in a World of Opportunity

You will have the flexibility you need to do your best work with hybrid work options. Whether you’re working from an AECOM office, remote location or at a client site, you will be working in a dynamic environment where your integrity, entrepreneurial spirit and pioneering mindset are championed.

You will help us foster a culture of equity, diversity and inclusion – a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients.

AECOM provides a wide array of compensation and benefits programs to meet the diverse needs of our employees and their families. We also provide a robust global well-being program. We’re the world’s trusted global infrastructure firm, and we’re in this together – your growth and success are ours too.

Join us, and you’ll get all the benefits of being a part of a global, publicly traded firm – access to industry-leading technology and thinking and transformational work with big impact and work flexibility. As an Equal Opportunity Employer, we believe in each person’s potential, and we’ll help you reach yours.

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