Principal / Associate Flood Forecasting Modeller

Overview

As a Principal/Associate in AECOM Water, you lead real-time flood forecasting projects and mentor teams to deliver high-quality outputs. You’ll develop and validate forecasting models, review data, and contribute to tenders for key clients, working across disciplines. The role combines technical leadership with client collaboration to expand flood forecasting services. You’ll operate in a dynamic, deadline-driven environment within a global, inclusive culture that values innovation and impact.

Pay / Benefits

• career development opportunities
• AECOM University
• volunteering days
• flexible hybrid working model
• competitive salary
• comprehensive benefits package

Responsibilities

• Lead and deliver real-time flood forecasting projects and associated reports
• Develop, calibrate, and validate flood forecasting models (e.g. PDM, Flood Modeller)
• Perform non-real-time hydrological analysis using Flood Modeller, ICM, HEC-RAS, MIKE 11, FEH methods
• Produce high-quality technical reports documenting model builds and uncertainties
• Lead and contribute to tenders for key clients
• Mentor and support junior team members
• Maintain knowledge of legislation and guidelines relevant to services
• Deliver outputs on time and within budget using project management systems
• Build relationships with clients and cross-disciplinary teams
• Stay current with industry practices and Environment Agency requirements
• Collaborate with the Water team across the UK & Ireland

Key requirements

• Significant experience in flood forecasting modelling (Flood Modeller)
• Strong knowledge of Environment Agency requirements for incidental management forecasting systems
• Proven ability to calibrate hydrological models (e.g. Muskingum-Cunge, PDM)
• Excellent analytical skills with experience in hydrometric data processing
• Bachelor’s degree in Civil Engineering or related field
• Strong GIS skills (QGIS, ArcGIS and/or MapInfo)
• Scripting experience (Python, Anaconda, Ruby, or similar) is advantageous
• Autonomous work style with strong commitment and collaborative mindset
• client relationship building
• mentorship and team development
• strong communication and report-writing
• Flood Modeller
• ICM
• HEC-RAS

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