Experienced Treatment Planning Engineer - Water Infrastructure

Due to significant contract awards within our Water business, we are expanding our Water Infrastructure team in Melbourne.

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, and defence sectors, with a key focus on supporting sustainable outcomes for our clients and the communities they serve.

By joining our team, you’ll be immersed in a strong, long-term pipeline of work, handling complex, large-scale and iconic projects across ANZ.

How you’ll make a difference:

• Proactive delivery of high-quality, timely and value-driven treatment planning solutions focused on optimisation, sustainability, regulatory compliance, whole-of-lifecycle cost, and acceptable operational risk
• Apply technical judgement, foresight and creativity to anticipate and resolve treatment process and project challenges, define design objectives and requirements, and contribute to treatment planning standards and guidelines
• Provide technical leadership for water and wastewater treatment planning studies, including process selection, capacity assessments, and upgrade/augmentation strategies
• Mentor and support junior engineers, building capability in treatment process design, modelling, and planning across the team.

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:

• Relevant tertiary qualifications.
• Proven experience in water and/or wastewater treatment planning or process engineering, ideally within a consulting environment
• Understanding of treatment processes, regulatory frameworks, and key drivers influencing plant performance and capacity planning
• Experience developing and evaluating treatment options, supported by sound technical analysis and engineering judgement
• Strong communication and stakeholder engagement skills, with the ability to clearly present technical concepts to a range of stakeholders
• Experience working within multidisciplinary project teams, with exposure to project delivery or coordination responsibilities.

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!

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.