Lead Process Engineer - Water Infrastructure

Aecom Australia Pty Ltd; Sydney, Newcastle; Hybrid; AUD 140,000 - 190,000; Full time

Benefits offered by this job

Flexible work

Extra annual leave

Volunteer leave

Flexible public holidays

Job summary

AECOM is expanding its Water Infrastructure team in Australia and seeks a Lead Process Engineer based in Sydney or Newcastle, NSW. You will handle large, iconic wastewater projects across Australia & New Zealand, delivering innovative strategies and effective client solutions in a flexible, hybrid setup.

Join a diverse team with strong career development, mentoring, and a commitment to excellence in water infrastructure.

Qualifications

• Tertiary degree essential
• Experience leading technical wastewater projects
• Strong knowledge of wastewater processes and regulations in AU/NZ
• Analytical/problem-solving skills and data analysis capability
• Excellent communication and stakeholder engagement abilities

Responsibilities

• Develop and implement process engineering strategies for wastewater treatment projects
• Provide guidance on technical challenges and advanced technologies
• Build and maintain strong client relationships and deliver tailored solutions
• Mentor junior engineers and foster innovation and continuous learning

Skills

Wastewater treatment knowledge

Technical leadership

Process engineering

Data analysis

Stakeholder engagement

Education

Bachelor's degree in Engineering

Job description

Company Description

“Having worked over 20 years, in both consultancies and council, my experience working at AECOM has been refreshing and motivating” – Dominique Keirens, Sector Manager – Water Infrastructure, SEQ

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 Water business, we are expanding our Water Infrastructure team across Australia and have a rare opportunity for a Lead Process Engineer to join the team based in either our Sydney or Newcastle office.

By joining our team, you’ll be immersed in a strong, long‑term pipeline of work, handling complex, large‑scale and iconic projects across Australia & New Zealand.

How you’ll make a difference:

• Develop and implement innovative process engineering strategies and solutions for wastewater treatment projects.
• Provide guidance on technical challenges and solutions, including advanced process technologies and sustainability practices.
• Build and maintain strong relationships with clients by understanding their challenges and delivering tailored solutions.
• Mentor and develop junior engineers and technical staff, fostering a culture of innovation and continuous learning.

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.

The qualities that help you thrive:

• Relevant tertiary degree (essential)
• Experience in the wastewater treatment industry at technical leadership level
• Strong knowledge of wastewater treatment processes, technologies and environmental regulations in Australia and New Zealand
• Proficiency in process engineering, data analysis and strong analytical/problem‑solving skills.
• Excellent communication and stakeholder engagement skills, with the ability to build trusted relationships with clients and project partners.

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.

Learn more about life at AECOM:

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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 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.

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