AECOM
Senior Wastewater Modeller
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Senior Wastewater Hydraulic Modeller
About AECOM
Work with us. Change the world.
At AECOM, we’re delivering a better world. Through improving commutes, keeping lights on, accessing clean water, and transforming cityscapes, we partner with clients to tackle global challenges and create lasting legacies for future generations.
There’s never been a better time to be at AECOM. With soaring worldwide infrastructure investment, our services are in high demand. Our global team of over 50,000 professionals—planners, designers, engineers, scientists, digital innovators, and project leaders—collaborates to deliver projects shining globally. Join us and let your bold ideas shape tomorrow.
Job Description
Start here. Grow here.
Let’s shape the future of the water industry.
We’re recruiting a Senior Wastewater Hydraulic Modeller, with the option to work from one of our UK or Ireland offices in a flexible hybrid working model.
You’ll play a pivotal role in transforming waterside projects across the UK and internationally—whether this is offering flood alleviation, combatting pollution, or expanding infrastructure. As our projects thrive on cross-disciplinary collaboration, you’ll deliver comprehensive solutions as part of an interdisciplinary team of planners, engineers, and environmental experts—all working alongside wind turbines, nature-based solutions specialists, and communications specialists.
AECOM stands at the frontier of blue-green infrastructure, with public and private sector partners such as: Severn Trent, Anglian Water, Northern Ireland Water, the Environment Agency, LLFA (Local Lead Flow Areas) LLDCs, and other infrastructure providers. We lead in Flood Risk Assessments, drainage strategies, outline business cases, hydraulic modelling, and detailed designs. But it’s not just projects—we shape industry standards with best practice guidance to ensure AECOM remains a leader in the field. Join a team that turns big problems into breakthroughs.
We thrill at the challenge of building a future that works better for people and planet. There’s no time to wait.
What you’ll do:
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Deliver impactful water projects:
- Build hydraulic models, verify sewer networks, and guide integrated model development.
- Contribute to flow survey verification while crafting catchment-scale solutions addressing flooding and pollution risks.
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Lead expertise and innovation:
- Share cutting-edge technologies while solving issues for our clients and crafting scopes/tender responses.
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Celebrate robust documentation and communication:
- Prepare technical reports, highlight findings through presentations, and advocate for our modelling approaches.
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Mentor + Quality Champions with purpose:
- Foster other modellers while ensuring review of our hydraulic models, calculations, and technical deliverables align with quality protocols and client needs.
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- Collaborate wide and be a bridge builder, integrating our functionality across AECOM and with external stakeholders.
Your expertise will elevate project outputs and underpin future water sector advancements.
Environment
You’ll join 700+ talent across AECOM’s UK & Ireland Water business. Within technical lanes like water resources, urban and coastal standards, you’ll work with purpose on priorities like flood management, critical-infrastructure security, and drought resilience.
At AECOM, we turn commitment to better infrastructure into real-world impact by designing, advising, and executing solutions with purpose, creativity, and an unbiased judgment.
Why Join Us?
- Make a difference: Join the work that changes communities, continents and the world. We don’t seek conventional tasks—we solve challenging, high-impact problems.
- Join leaders in our field: Partner with forward-thinking industry consultants who balance spirit and rigor to turn breakthroughs into tangible outcomes.
- Insightful collaboration: Inclusion drives our culture. Your unique perspective will empower us to invent insightful solutions.
- Blend future-proof potential with diversity of work. We aspire to be the best at what we do, and your creativity helps us stay there.
- Development for the journey: Our practice networks, AECOM University, mentorship, and career enrichment opportunities help you level up your skills.
- Flexible to fit you: Micro choice matters—adjust your work hours and location for your life while knowing serving our clients and each other is core to our culture.
Qualifications & Requirements
Experiences & Skills
We’re looking for candidates with the energy, vision and hands-on experience to excel at this role:
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Educational background:
- Bachelor’s degree in Environmental Science, GIS, Geography, Civil Engineering, or related fields.
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Relevant technical expertise:
- Hydraulic Modelling, GIS, or Data Analysis proficiency, particularly expertise in these tools:
- ArcGIS or MapInfo (GIS)
- Innovyze ICM / InfoWorks / InfoAsset (Hydraulic Modelling or Asset Management)
- Hydraulic Modelling, GIS, or Data Analysis proficiency, particularly expertise in these tools:
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Professional experience and soft skills:
- Minimum 3–5 years in water consultancy or similar fields.
- High-energy professional with trust-building ability, resistance to ambiguity, and a commitment to creative yet precise problem solving.
- Propensity to grow: embrace continuous learning opportunities, and diligence to master new challenges.
- Excellent team, communication, and relationship management skills.
Our Commitment
At AECOM, we reflect the same determination and inclusion in our talent as we demonstrate in our projects—building better, together. We grow with those who share core values:
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- Believe in sustainable solutions: Stewarding resources and designing equity-centered infrastructure.
- Push boundaries: Diagnosing deeper root causes and designing holistic approaches.
- Balance data and diplomacy: Integrating policy knowledge alongside technical rigor while championing environmental, social, and governance excellence.
You’re invited to bring strategic vision and hands-on execution to our impact.
Application Support
AECOM is a Disability Confident employer—we make reasonable adjustments to support talent through interviews right into the workplace. For more information, visit our Diversity, Inclusion, and Employer Accessibility Portal at AECOM Accessibility Support.
If you have neurodivergence or another disability or impairment that may require reasonable adjustments, let us help by contacting us at [email protected].
Navigating our applications for the first time? No problem—we have our Candidate Brochure and live video on LinkedIn showing AECOM from the inside.
Opening
- Location: Bristol, UK
- Model: Hybrid Work
- Group: AECOM Infrastructure & Environment (UK) Ltd #LI-RP1Ac1-UniBM-YOJOJ +Coming soon Hypothesis-Based Experiences-Braswell
Financials & Benefits
We reward contribution with competitive pay and a full framework of ends-and-outs features, including:
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Core benefits:
- Equitable pay flexibility and benefits designed to celebrate every facet of our global team.
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Personalised rewards:
- Fitness stipends, concierge services, and an AECOM Financial Wellness Program dedicated to empowering your financial health and stability.
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Development and learning:
- AECOM University provides unique and purposeful learning opportunities customized to elevating your skillset.
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Community engagement:
- Volunteering days for social impact, paid leave matched, and flexible schedules to fuel energy where community-building is encouraged.
Legacy Best Practice AECOM’s impact extends beyond projects—our approach to Inclusive Culture and Belonging shows up in policies, practice, and heart.
Our ambition to embrace purpose is summed up in one mantra: "Freedom to Grow in a World of Opportunity."
We recognise that a supportive, authentic culture matters—because when our people have room to breathe and grow together, your passion and unfamiliarity can both thrive.
"Help us build a world where classic innovation lifts everyone up—together, we redefine the meaning and method of doing things."
Join us. The era of positive, equitable infrastructure improvement has begun.
Talent, we need you.
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