Senior Mechanical Engineer – Water Infrastructure

AECOM; City of Brisbane; Hybrid; AUD 90,000 - 140,000; Full time

Benefits offered by this job

Flexible work arrangements

Hybrid work options

Additional annual leave

Volunteer leave

Job summary

AECOM is expanding its Water Infrastructure team in Southeast Queensland, offering a 10-year pipeline of engaging projects across water and wastewater treatment, desalination, pumps, and pipelines.

Join our collaborative, mentoring culture with access to industry leaders, interstate and international collaboration, and flexible work arrangements designed to support work-life balance while delivering world-class infrastructure.

Qualifications

• Bachelor of Mechanical Engineering required; RPEQ/CPEng highly regarded.
• Experience in mechanical design for water or wastewater projects within a consulting environment.
• Knowledge of applicable design codes, standards and guidelines.
• Experience delivering multi-disciplinary solutions and leading technical teams.
• Strong client and stakeholder engagement skills.

Responsibilities

• Deliver mechanical designs for water infrastructure projects.
• Provide design reviews and ensure delivery excellence.
• Work on projects from planning through construction and commissioning.
• Mentor junior engineers and collaborate across offices.

Skills

Mechanical design

Water/Wastewater

Project leadership

Client engagement

Education

Bachelor of Mechanical Engineering

RPEQ / CPEng

Tools

AutoCAD

SolidWorks

Revit/Bentley MicroStation

Job 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.

• 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.

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.

We pay our respects to our 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/.

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.

ReqID: J10150505

Business Line: Water

Business Group: DCS

Strategic Business Unit: ANZ

Career Area: Engineering

Work Location Model: Hybrid