Assistant Treatment Plant Operator - Biloela

Banana Shire Council; Sydney; Hybrid; AUD 180,000 - 280,000; Full time

Benefits offered by this job

Flexible work arrangements

Extra annual leave (up to 6 weeks)

Volunteer leave

Flexible public holidays

Job summary

AECOM is expanding its Water Infrastructure team in New South Wales. This role leads the design and delivery of water and wastewater treatment projects, with responsibility for projects from concept through to construction support.

You will mentor junior engineers and collaborate with colleagues across Australia and the global network. The role focuses on delivering high-quality technical outcomes, maintaining safety, and building client relationships, with hybrid work options and opportunities

Qualifications

• Tertiary engineering qualification with professional recognition
• Experience delivering water/wastewater projects in consulting, design or engineering
• Knowledge of water/wastewater treatment processes and codes
• Strong communication and stakeholder engagement skills
• Interest in mentoring and developing junior team members

Responsibilities

• Lead the design and delivery of water and wastewater treatment projects, including upgrades and optimisations
• Coordinate projects from inception to completion: bidding, design, tender docs and construction support
• Contribute to civil infrastructure planning for treatment facilities, including site layouts and hydraulic structures
• Ensure QA processes, deliver projects safely, on time and within budget
• Build relationships with clients and multidisciplinary teams across offices
• Mentor junior engineers and designers to share knowledge across the team

Skills

Project leadership

Water treatment

Stakeholder engagement

Mentoring

Education

Engineering degree

CPEng eligibility

Job description

Civil Treatment Lead - Water Infrastructure

“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 ANZ Water business, we are expanding our Water Infrastructure Team in New South Wales.

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'll work alongside industry-leading technical specialists on some of Australia's most complex and impactful water projects. You'll also have the opportunity to collaborate with colleagues across Australia, New Zealand and our global network.

How you’ll make a difference

• Lead the design and delivery of water and wastewater treatment projects, including treatment plant upgrades, renewals and optimisation works.
• Coordinate and manage projects from inception through to completion, including bidding, concept and detailed design, tender documentation and construction phase support.
• Contribute to the planning and design of civil infrastructure associated with treatment facilities, including site layouts, hydraulic structures, tanks, pipework and supporting infrastructure.
• Ensure quality assurance processes are followed, delivering projects safely, on time and within budget.
• Build and maintain strong relationships with clients and multidisciplinary teams across local, regional and global AECOM offices.
• Mentor junior engineers and designers, supporting technical development and knowledge sharing across the team.

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

• Relevant tertiary qualifications and CPEng(or working towards/eligible).
• Demonstrated experience delivering water and/or wastewater treatment projects within a consulting, design or engineering environment.
• Experience with treatment plant upgrades, renewals, process infrastructure and associated civil works.
• Knowledge of applicable Australian codes, standards and industry guidelines relevant to water and wastewater treatment.
• Strong communication and stakeholder engagement skills, with the ability to collaborate across multidisciplinary teams.
• A passion for delivering high-quality technical outcomes and mentoring emerging talent.

Additional Information

Why you’ll love working with us

• Flexible work arrangements, including alternative start/finish times, 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.

AECOM acknowledges the Traditional Owners and Custodians of the landson which we, our clients and our communities live and workaround 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:

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.

**Company Description**
_"Supported by people, local and global communities who are not only willing to guide but also nurture professional development and leadership"_ - **_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, as well as maximising resource recovery and energy efficiency.
AECOM is delivering some of Australia's most critical water infrastructure projects. With multiple long-term partnerships with Water clients nationwide, we offer an unparalleled opportunity to work on complex and high-impact projects across the country.
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.
**Freedom to Grow in a World of Opportunity**
...

**ReqID:** J
**Business Line:** Water
**Business Group:** DCS
**Strategic Business Unit:** ANZ
**Career Area:** Engineering
**Work Location Model:** Hybrid