Senior Mechanical Engineer – Water Infrastructure

AECOM; Brisbane; Hybrid; AUD 120,000 - 170,000; Full time

Benefits offered by this job

Flexible work arrangements

Additional annual leave (up to 6 weeks

Volunteer and representation leave

Flexible public holidays

Job summary

AECOM in Queensland is expanding its Water Infrastructure Team to capitalise on a secure 10-year pipeline of work from significant contract awards. You will deliver mechanical designs for water and wastewater projects, including treatment plants, desalination, pump stations, pipelines, and dams, while collaborating with national and international experts.

The role offers mentoring from industry leaders and opportunities to mentor junior engineers, with hybrid work options and a focus on

Qualifications

• Bachelor of Mechanical Engineering is essential; RPEQ or CPEng highly regarded.
• Demonstrated mechanical design experience in water and/or wastewater projects.
• Knowledge of applicable design codes, standards and guidelines.
• Experience delivering multi-disciplinary solutions and leading technical teams (highly regarded).
• Passion for delivering high quality work with excellent client and stakeholder engagement.

Responsibilities

• Deliver mechanical designs as part of the water infrastructure team across Australia and New Zealand.
• Provide mechanical engineering design advice, review and approvals to maintain delivery standards.
• Work on major water infrastructure projects including water and wastewater treatment plants, desalination, pump stations, pipelines, dams and headworks.
• Mentor and develop emerging engineers while being mentored by leaders and experts.

Skills

Mechanical design

Water/wastewater

RPEQ/CPEng

Design codes

Leadership

Stakeholder engagement

Education

Bachelor of Mechanical Engineering

Job description

Company Description

“Having worked over 20 years, in both consultancies and council, my experience working at AECOM has been refreshing and motivating” – Dominique Keirens, Technical Director – Water Gold Coast, QLD

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

Due to significant contract awards within our Australia & New Zealand Water business, we are expanding our Water Infrastructure Team in Southeast Queensland (SEQ), these awards bring a secure 10-year pipeline of work.

The Water Infrastructure group provides services to a range of internal and external clients on projects covering water and wastewater treatment, dams, asset management, major conveyance, industrial, civil infrastructure, mining, and defence sectors, with a key focus on supporting sustainable outcomes for our clients and the communities they serve.

By joining our team, you will have access to mentoring and guidance from our industry leading experts. You will also have the opportunity to work and collaborate with interstate and international offices.

How you’ll make a difference

• As an experienced engineer, you will play a key role delivering mechanical designs as part of our integrated water infrastructure team across Australia and New Zealand.


• You will provide mechanical engineering design, advice, review and approval whilst maintaining the high standards of delivery excellence established by the team.


• Work on a diverse range of major national and international water infrastructure projects, including water and wastewater treatment plants, desalination, major pump station and pipelines, dams and headworks, and support our delivery of water, transport, power and urban development projects.


• You will have opportunities to be mentored by leaders and industry experts in our business and will in turn mentor and develop emerging engineers to shape our future professionals.

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 of Mechanical Engineering – essential & RPEQ / CPEng – highly regarded.


• Demonstrated mechanical design experience in water and/or wastewater projects within a dynamic consulting and design environment.


• Knowledge of applicable design codes, standards and guidelines.


• Experience delivering multi-disciplinary solutions and leading technical teams (highly regarded).


• Passion for delivering high quality work, with excellent client and stakeholder engagement skills.

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.

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.

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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: https://aecom.com/au/our-vision-for-reconciliation/.

About 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.

Work Location Model: Hybrid