AECOM
Principal / Associate Flood Forecasting Modeller
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Principal/Associate – Flood Forecasting Modeller
Company Description
Work with Us. Change the World. At AECOM, we deliver a better world. Whether improving commutes, ensuring reliable energy, providing clean water, or transforming city skylines, our work helps communities thrive. As the world’s trusted infrastructure consulting firm, we partner with clients to tackle the planet’s most complex challenges and shape sustainable legacies for future generations.
There’s never been a better time to be at AECOM. With global infrastructure investment accelerating, our expertise is more critical than ever. Join a rousing, 50,000+ person team—spanning planners, engineers, scientists, digital innovators, and construction professionals—bringing bold ideas and real-world impact to life.
We’re one global purpose-driven team, committed to creating positive change through great work.
About the Role
Start here. Grow here.
Are you ready to join a team of flood risk specialists and shape the future of the water industry?
AECOM is seeking a Principal or Associate to expand its Water team, leading flood forecasting projects, mentoring staff, and improving operations with the UK Environment Agency and beyond.
While your core focus will be on real-time flood forecasting, you’ll also collaborate on broader projects in hydrology, modelling, and water resource management.
Responsibilities
As a Senior Flood Modelling Technical Lead, you will:
- Produce and review Flood Forecasting Inception Stage Reports, assessing the quality of hydrometric data, hydrological models, and existing forecasting systems.
- Develop, calibrate, and validate flood forecasting models (e.g. PDM, Flood Modeller, HEC-RAS, MIKE 11, FEH hydrological methods).
- Conduct non-real-time hydrological modelling and mitigate uncertainties.
- Author and review high-grade technical reports, ensuring compliance with Environment Agency guidelines.
- Lead and contribute to time-sensitive tenders and client pitches.
- Mentor junior staff and foster a culture of technical excellence.
- Engage closely with clients and cross-disciplinary teams to deliver robust solutions.
- Stay current on regulatory frameworks and industry best practices.
- Use AECOM’s project management tools to meet deadlines and budgets efficiently.
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Your work will be embedded in a dynamic 700-strong team of UK-based water experts, working collaboratively on projects from concept to completion.
What AECOM Offers You
Why Join Us?
✅ Make a real impact – Work on high-stakes water projects that change lives. ✅ World-class collaboration – Partner with industry leaders and thought-shapers. ✅ Inclusive environment – Belong to a forward-thinking team that values all perspectives. ✅ Career growth – Access to continuous professional development, technical networks, and AECOM University. ✅ Flexibility – Enjoy a hybrid work model and personalised benefits for well-being. ✅ Sustainability – Contribute to solutions-driven infrastructure with real-world significance.
Requirements
Essential Criteria
- 5+ years’ experience in flood forecasting modelling, specialising in tools like Flood Modeller.
- Strong understanding of Environment Agency protocols, including compatibility with Incident Management Forecasting Systems (IMFS).
- Proven expertise in calibrating and applying flood forecasting models (e.g. Muskingum-Cunge, Probability Distribution Model (PDM)).
- Analytical rigour – Ensure high-quality data processing and gauge rating reviews.
- Bachelor’s degree (or equivalent) in Civil Engineering, Hydrology, or related disciplines.
- Proficient in GIS: QGIS, ArcGIS, or MapInfo.
Technical Advantages
- Experience with hydrological scripting (Python, Anaconda, Ruby).
- Understanding of Mathematical modelling frameworks (QRESS, GBPK, Flow 1D).
Must-Haves
- Ability to work autonomously and as part of a deadline-driven team.
- Self-motivation with a passion for innovation and technical improvement.
- Commitment to lifelong learning and sustainable practices.
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Compensation & Benefits
- Competitive salary tailored to experience level.
- Performance-based bonuses and incentives.
- Structured career development with global opportunities.
- Flexible hybrid working to balance your lifestyle.
- Health and wellness support, generous parental leave policies, and employer-matched pension.
- Technical and soft-skills training through AECOM University.
Diversity & Inclusion
At AECOM, we embrace neurodiversity and encourage applications from all backgrounds. If you have a disability requiring reasonable accommodations, please email [email protected]. All eligible applicants with disabilities will receive an interview under our Disability Confident Employer Scheme.
Equal Opportunity Employer: AECOM
Our goal is to balance inclusion with business excellence. Selection processes comply with EEO guidelines.
Important Note
Day 1 Onboarding is required: Selected candidates must attend an in-person onboarding session at an AECOM office in the UK.
More About AECOM
AECOM’s $16.1 Billion Professional Services business (fiscal 2025) delivers confidence in a continually changing world. Our projects cover:
- Multi-modal transport infrastructure (roads, rail, airports).
- Smart building and industrial design.
- Water treatment and environmental compliance.
- Low-carbon energy transition.
We combine technical depth with a commitment to equity, diversity, and sustainability. Join our Fortune 500 legacy and help shape tomorrow’s infrastructure today.
LINKEDIN: Visit our AECOM UK Water page to explore active projects.
📍 Base Location: Leeds, United Kingdom
Applicant Access Letter
Honour, integrity, and merit define AECOM. Misrepresentation of qualifications will result in disqualification. All data is kept confidential per EEO regulations.
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