Principal Hydraulic Modeller / Hydrologist - Flood Risk & Catchment Modelling
Role Overview
We are seeking a Principal Modeller / Hydrologist to provide technical leadership across a portfolio of flood risk and water environment projects in the UK. This role will focus on the development, verification and application of advanced hydraulic and hydrological models to support flood alleviation schemes, river restoration, drainage strategies and flood risk mapping programmes.
You will lead modelling strategy, guide technical direction across projects and mentor junior staff, while working closely with engineers, environmental specialists and clients to deliver resilient, sustainable flood risk management solutions.
Key Responsibilities
Lead the development, checking and verification of hydraulic models using platforms such as Flood Modeller, TUFLOW, HEC-RAS and InfoWorks ICM
Deliver modelling outputs in support of:
Flood alleviation schemes
Flood risk assessments and drainage strategies
River restoration and watercourse improvement projects
Flood mapping and asset planning programmes
Lead the estimation of flood flows using established methodologies within the Flood Estimation Handbook (FEH)
Scope and conceptualise modelling and hydrological approaches, identifying risks, limitations and opportunities at project outset
Produce and technically review high-quality reports, clearly documenting assumptions, uncertainties and modelling limitations
Provide technical leadership during tendering, contributing to bids ranging from one-off commissions through to multi-million-pound frameworks
Mentor and develop junior team members, supporting professional growth and technical capability
Build strong working relationships with clients and multi-disciplinary project teams
Maintain awareness of evolving legislation, guidance and industry best practice affecting flood risk and modelling services
Manage delivery using internal project management systems to achieve quality, programme and budget targets
Collaborate closely with engineers and environmental specialists to deliver fluvial, coastal, surface water and drainage flood risk projects
Candidate Profile
Degree in Hydrology, Civil Engineering, Environmental Science or a related discipline
Significant experience delivering hydraulic and hydrological modelling within flood risk or water environment projects
Expert user of Flood Modeller, TUFLOW, HEC-RAS and/or InfoWorks ICM
Strong knowledge of FEH flood flow estimation methodologies
Proven ability to lead technical delivery, review complex models and produce high-quality reports
Experience supporting bids and framework delivery environments
Comfortable mentoring junior staff and acting as a technical authority
Excellent communication skills with the ability to translate modelling outputs into clear, actionable advice
This role offers the opportunity to shape major flood risk management and water environment programmes while acting as a senior technical leader within a multidisciplinary delivery team.
Contract - 6 Month Initial -Inside IR35
JBRP1_UKTJ