AECOM
Principal Flood Modeller
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Senior Flood Modeller
Company Description
Protect lives and landscapes with AECOM – deliver expert flood risk solutions that safeguard communities and infrastructure.
"Work with Us. Change the World."
At AECOM, we’re delivering a better world. Whether improving commutes, keeping the lights on, providing clean water, or reshaping skylines, we address the world’s most complex challenges—helping people and communities thrive.
Over 50,000 planners, designers, engineers, digital innovators, and industry leaders collaborate globally to deliver impactful projects. Join us, and bring your bold ideas and vision to change the Industry.
Job Description
"Are you ready to join a team of flood risk specialists and shape the future of the Water Industry?"
Our Water team is seeking a passionate Senior Flood Modeller to grow the Water business, delivering cutting-edge projects across the UK and beyond from our central hub in Bristol.
In this senior-level technical role, you’ll:
- Mentor junior colleagues
- Proactively grow our portfolio for local authorities, water companies, and private/public sector clients
Core Responsibilities
You’ll play a pivotal role in hydraulic modelling, flood risk assessments, and flood alleviation schemes, using leading software and frameworks:
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Develop and refine hydraulic models (using Flood Modeller, TUFLOW, MIKE 11, MIKE 21, HEC-RAS, and ICM) for:
- Flood alleviation schemes (design and feasibility)
- Flood Risk Assessments (Regulatory/Agency compliance)
- Reservoir flood studies
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Lead water quality modelling, including:
- Physico-chemical
- Biological
- Microbial
- Chemical processes (using MIKE, Delft3D, SIMCAT, or ICM)
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Concept, scope, and risk-analyze flooding strategies before project onset
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Conduct hydrological assessments, using Flood Estimation Handbook (FeH) / ReFH2, and WINFAP.
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Tender leadership: Proactively engage in DMU, RFT, and wider framework bid processes (project values range from single solutions to multimillion-pound frameworks).
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Coaching and development: Foster career growth within the team.
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Client engagement: Act as technical liaison, building strong relationships across multiple stakeholders.
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Regulatory vigilance: Stay informed on new legislation, EA, DoE or ENVIRO standards impacting flood resilience.
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Project delivery excellence:
- Adherence to scope and time via AECOM’s project management system.
- Collaborate with engineers/technical professionals on fluvial, coastal, surface water and drainage projects.
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Hybrid workflow excellence: Execute high-quality Python, Anaconda, or Ruby scripting where applicable.
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About the Opportunity
Join one of the most dynamic water teams in the UK:
- 700+ experts across UK & Ireland.
- End-to-end projects (from scoping to completion).
- Challenges and opportunities—we grow with ambition.
Why Join AECOM?
✅ Work within a global, inclusive firm advancing sustainability and equity.
✅ Hybrid flexible working—balance work with purpose, at pace and location of your choice.
✅ Career acceleration:
- Technical training and networks (AECOM University, professional growth initiatives).
- Volunteering opportunities for impact.
✅ Inclusive culture:
- Free-benefit model tailored to you.
- Achieve work–life balance with flexibility.
✅ Pioneer work:
- Transformational projects that shape communities and landscapes.
- Join a firm that changes lives and landscapes every day.
Requirements & Qualifications
Here’s how AECOM defines excellence:
Yu ascend the dizzying heights of technical mastery within hydraulic/water quality modelling and lead impactful projects—collaborating, innovating, and securing our collective legacy. If this passion—alongside dynamic problem-solving excellence—energises you, then AECOM’s call is for your voice.
Essential Criteria:
- Proven expertise in hydraulic modelling software (Flood Modeller, Mike-models—11/21 and/or Alternatively, TUFLOW).
- Water quality modelling (With tools: MIKE, Delft3D, or SIMCAT) or ICM.
- Industry-standard knowledge: navigating Environment Agency Regulations, ensuring RAA compliance.
- Bachelor’s degree in Civil Engineering or related field.
- Technical accuracy, whether Flood Estimation Handbook calculations or scrutiny of senior outputs.
- Engineered commitment: self-driven project management, deadlines, and vigour in a multi-party environment.
Desired Skills & Differentiators:
- A passion on-site: extended field work, client interaction perception and data input.
- Technical scripter: fluency in Python/ Anaconda Ruby programming for automation analysis.
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Benefits
At AECOM, excellence isn’t brushed over—it’s elevated. Here’s what we offer:
- Global mindset, trained in FIPS, EA, UK, and EU environmental regulations.
- Flexible structure: leadership in career-building programs ensuring continuous growth curve.
- Personalised benefits inheritance: family plans, senior discounts, local mobility, tailored healthcare, discounted gyms, and happiness stipends.
- Reasonable office locations:
- Our Bristol-based hub fosters deep-connections leading to long-term friendships at work.
Diversity and Inclusion Commitments
AECOM believes in impactful diversity:
- We actively champion neurodivergent voices for shared successes.
- DCI & Equal Opportunity Employer: Adhere to proactive EDI goals.
- AIDF & Disability Accommodation: Find out if our doors will open wide for applicants needing additional support—just [email protected].
We invest in every person’s unique trajectory. Solutions are shared, no solo grinds.
About AECOM
At the heart of infrastructure resolve, AECOM drives sustainable, chaired futures.
- Global impact across:
- HVACs (energy efficiency) for smart buildings
- Coastal resilience, estuary restoration
- Clean water sanitation, frameworks for faraway hazard management.
Hubs from global metropolises, ACT blogs, education has never been so explicit! A $16.1B enterprise-channel dedicated to crafting unrivaled legacies through ProjectLOOPs™.
Application Sustainability
We hold confidentiality validly:
- Fraudulent review is zero tolerance—compliance is rigorous but directly enforced through real outcomes.
Tagline: "The problem-solving solutions your credibility demands overlaps with our legacy." Reach*: #AECOMUKFLOODMODELLER & explore our journey on aecom.com, LinkedIn @AECOM
Additional Information
- Legal Entity: AECOM Limited
- Location: Hybrid model, HQ in Bristol, UK 3 Rivergate
- Salary / Benefits: Competitive, inclusive set-up (Terms based on UK’s FAIR VALUE-re Zeniths) InitIAL Onused.splice mandatory downsizes: Observation 1 days yield with a location.
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