Senior Mechanical Engineer – Water Infrastructure

Work with Us. Change the World.

At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.

There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

We're one global team driven by our common purpose to deliver a better world. Join us.

Due to significant contract awards within our Australia & New Zealand Water business, we are expanding our Water Infrastructure Team in Perth, these awards bring a secure 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.

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 & 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.

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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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.