AECOM
Senior Wastewater Modeller
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Senior Wastewater Hydraulic Modeller – Bristol, UK
Company Description
"Shape the future of water with AECOM—lead advanced wastewater modelling that drives sustainable infrastructure and lasting environmental impact.” Work with Us. Change the World.
At AECOM, we deliver a better world. Whether improving infrastructure, ensuring access to clean water, or transforming cities, our work helps communities thrive. We’re the world’s trusted infrastructure consulting firm, solving complex challenges and building legacies for future generations.
Now is the perfect time to join AECOM. With global infrastructure investment growing, our impactful services are in demand. Bring your bold ideas and ambition to a global team of 50,000+ professionals—planners, engineers, scientists, and innovators—making a real difference worldwide.
We’re one global team, driven by a shared purpose: delivering a better world.
Job Description
Title: Senior Wastewater Hydraulic Modeller Location: Bristol, UK (with hybrid working flexibility) Salary: Competitive (full details in offer) Equipment: Laptop.
"Are you ready to join a team of wastewater modellers and shape the future of the water industry?"
Join AECOM’s dynamic Water Team as a Senior Wastewater Hydraulic Modeller, contributing to groundbreaking projects across the UK and internationally. You’ll be part of a multidisciplinary team, solving critical challenges in flood risk, pollution, and water infrastructure, while fostering continuous professional growth.
What makes our approach unique? Our modelling experts are fully integrated into project teams—collaborating with civil engineers, environmental scientists, and asset managers to develop innovative, nature-based solutions. We influence industry standards by shaping Blue-Green infrastructure guidance and benchmarking best practices.
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This role offers an exceptional opportunity to work with a talented, diverse team committed to collaboration, sustainability, and efficiency in sectors including:
- Severn Trent
- Anglian Water
- Northern Ireland Water
- Environment Agency
- Localised Flood Authorities (LLFAs)
Key Responsibilities
You will:
- Deliver: Build and verify hydraulic models of sewer networks; develop integrated catchment models and support flood and pollution risk strategies.
- Innovate: Apply new technologies and problem-solve for clients while crafting project scopes and tender responses.
- Communicate: Produce technical reports, presentations, and visualisations to share modelling insights effectively.
- Lead: Mentor team members and nurture professional growth; maintain positive client relationships.
- Ensure quality: Review modelling outputs, calculations, and reports to uphold specification and technical excellence.
What We Offer
Crushing Challenges, Transforming Lives
You’ll be part of a high-impact Water business spanning 700+ experts across UK and Ireland, working on projects from small initiatives to large-scale infrastructure transformations.
Work-Life Essentials
- Hybrid working model – flexibility to choose between AECOM/remote/client site locations.
- Inclusive culture – diverse team that values individual strengths.
- Holiday: 23+ days plus private bank holidays.
- Pension and investment: Auto-enrolled into AECOM Pension Plan alongside discretionary bonuses.
- Digital Wellbeing Pass – reimbursement for mental & physical wellness tools like exercise memberships, gym, and short breaks.
- Care Development: AECOM University for skill-building, technical networks, volunteering days, and flexible development opportunities.
- Equal Opportunities: Disability Confident Employer – enhanced support and specialised interview process.
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Requirements & Eligibility
Key Skills & Experience
- Degree: Environmental Science, GIS, Geography, Civil Engineering, or related field.
- Technical Expertise:
- Proficient in hydraulic modelling (e.g., Innovyze ICM, InfoWorks, SWMM).
- GIS skills (e.g., ArcGIS, MapInfo, QGIS) for data analysis/visualisation.
- Domain Knowledge: Water consultancy experience, asset management, or environmental engineering.
- Soft Skills: Strong problem-solving, autonomy in engineering tasks, and passion for deadline-driven collaboration.
We welcome candidates whose skills align with minimum requirements (or with transferable experience). Commitment, collaborative spirit, and a vision for innovative, sustainable water solutions matter most.
Inclusion & Support
Equal Opportunities & Accessibility
- Diversity & Neurodiversity: AECOM celebrates unique backgrounds; explore accessible recruitment at [contact@aecom.com].
- Disability Confident: Offers interviews to applicants with disabilities who meet core criteria.Apply via the Disability Confident scheme: [contact@aecom-disabilitieservices.co.uk].
Next Steps
Join AECOM – Shape Water’s Future.
For applications, explore more about AECOM’s local projects at the AECOM Water page on LinkedIn. ([#LI-RP1])
AECOM is a Fortune 500 firm. Embedding equity, diversity, and sustainability in our global work drives lasting impact. Fiscal FY 2025 revenue: $16.1 Billion; learn more at aecom.com.
Join us and help create a better world.
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