AECOM
Senior/Principal Hydraulic Modeller

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Senior/Principal Hydraulic Modeller – Bristol, UK
About the Role
Join AECOM’s Water Resources team in Bristol and become a key contributor to our dynamic UK&I Water Resources group, supporting projects from flood risk assessments to large-scale infrastructure development.
This exciting opportunity is focused on leading technical delivery, promoting best practices in hydraulic modelling, and fostering talent within a collaborative team. You’ll play a pivotal role in shaping solutions that protect communities and infrastructure across the UK.
Key Responsibilities
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Lead and execute 1D-2D hydraulic modelling for:
- Fluvial, surface water, and tidal flood risk assessments
- Hydraulic modelling for private/public sector clients
- Training of junior members (graduates, high potentials)
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Support flood risk management through technical work such as:
- Flood Risk Assessments
- Hydrological assessments
- Green infrastructure/sustainable urban drainage design
- Regulatory reporting and environmental statements
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Quality assurance of technical deliverables, including model reviews and best-practice mentorship
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Client liaison to refine scope, budgets, and success criteria, facilitating project success
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Support bid proposal preparation for both internal and external clients
What We’re Looking For
Essential Requirements
✔ Degree (2:1 or above) in Engineering, Geography, Environmental Science, or related disciplines ✔ Extensive hands-on experience with 1D-2D hydraulic modelling software:
- Flood Modeller Pro, TUFLOW, InfoWorks ICM ✔ Proficiency in GIS tools: QGIS, ArcGIS, MapInfo ✔ Demonstrated track record in:
- Leading hydraulic modelling projects for flood risk/water management
- Client/stakeholder engagement
- Delivering within technical/quality standards
✔ Evidence of:
- Quality-checked technical reporting
- Proposal/Tender preparation
- Able to mentor junior consultants
✔ Encouaged behaviours:
- Strong problem-solving mindset
- Results-driven with commercial judgement
- Selective remote support where needed (hybrid model)


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Desirable Qualifications
☑ Advanced degree (M.Sc./Ph.D.) in engineering/science ☑ Chartership (ICE/CIWEM) or progress towards it ☑ Technical expertise in:
- Hydrological flow estimation by WINFAP-FEH or ReFH2
- Flood Risk Assessments
Why Join AECOM?
🔹 Impact: Help communities via high-profile projects 🔹 Career growth: Access AECOM University, flexible hybrid working, mentorship 🔹 Collaboration: Work across UK&I hubs with state-of-the-art expertise
Key benefits include hybrid working, professional development, diversity initiatives, and global career opportunities.
Company Commitment
AECOM supports inclusivity, disability confidence, andreasonable working adjustments. We ask candidates to disclose accommodations if needed (disability.contact@aecom.com) or via specified interview schemes.
For further details visit aecom.com.
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