At AECOM, we're delivering some of Western Australia's most significant transport infrastructure projects, helping clients solve complex engineering challenges while creating lasting benefits for communities. Our Highways team continues to grow, creating an opportunity for an experienced Drainage Engineer to play a key role in delivering major road and highway projects across WA and nationally.

As a Principal Drainage Engineer, you'll provide technical leadership across the planning, design and delivery of drainage and water management solutions for major highways and transport infrastructure projects.

Working closely with our highways, civil, structures and environmental teams, you'll help deliver innovative and sustainable outcomes while mentoring the next generation of engineers.

How you'll make a difference

• Lead the drainage design for major highways and transport infrastructure projects across Western Australia and Australia.
• Deliver stormwater management, flood modelling and hydraulic design solutions from concept through to detailed design.
• Act as the technical lead for multidisciplinary project teams, ensuring high quality and efficient project delivery.
• Build and maintain strong relationships with clients including Main Roads WA and other transport authorities.
• Mentor and develop junior and intermediate engineers while contributing to the continued growth of our highways capability.
• Support business development activities, including proposals, client engagement and identifying new opportunities.

The qualities that help you thrive

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.

• Around 8 – 15 years' experience in drainage, stormwater or water resources engineering within a consulting environment.
• Strong experience delivering drainage design for major highways, road or transport infrastructure projects.
• Knowledge of Main Roads WA requirements and Austroads design standards.
• Experience using drainage and hydraulic modelling software such as DRAINS, 12d, HEC-RAS, TUFLOW or similar.
• Proven ability to lead technical delivery across multidisciplinary infrastructure projects.
• Excellent communication skills with experience working directly with clients and project stakeholders.
• A recognised Civil Engineering degree and eligibility for Chartered status with Engineers Australia.

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. Learn more about life at AECOM: LinkedIn, Facebook , Instagram, X, YouTube - explore our AECOM voices, employee stories, latest projects, and much more!

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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.