Drainage Modeller

At HR Wallingford we design smart resilient solutions across the natural and built environments to help everyone live and work more sustainably with water. By harnessing research data insights and the power of our collective expertise we help the world to better understand the changing influence and impact of water.

We have an exciting opening for drainage modeller to help us deliver on our expanding portfolio of UK and international research and consultancy projects.

Current projects within the Catchments and Drainage team include:

• Modelling the impacts of retrofitting Sustainable Drainage Systems (SuDS) in cities in Europe and the Caribbean as part of climate resilient planning strategies;
• Evaluating impacts of Combined Sewer Overflow (CSO) spills and urban runoff discharges;
• Governance of water company modelling and asset delivery strategies;
• Modelling and master planning drainage asset portfolios;
• Developing climate-adjusted rainfall time series and risk-based approaches to drainage design for flood and spill risk mitigation;
• Creating tools for the planning evaluation and design of SuDS;
• Creating digital AI modelling solutions and applications;
• Developing industry good practice guidance.

The team sits within the wider Flood and Water Management Group. Across this Group we have a wide variety of experts including in water resources flood risk systems analyses flood forecasting international climate adaptation and resilience statistical modelling data visualisation and management and the use of earth observation data. Our work cuts across regulatory government and private sector consultancy and research sectors both in the UK and internationally and we are continuously generating new knowledge skills and tools through our ongoing programme of internally-funded research. Within your role you would be interacting and developing solutions with staff in all of these fields in order to win and deliver projects and support clients across the Group.

The Group are recognised for our innovation. We won the Digital Excellence category at the Environment Agencys Flood and Coast Excellence Awards 2024 with our Resilience and Innovation Northants (RAIN) platform for Northamptonshire Council (Home Page - RAIN). Our Intelligent Dam Safety Monitoring (DAMSAT) project won two awards at the New Civil Engineer Techfest Awards and our Dengue forecasting MOdel Satellite-based System (D-MOSS) has won 9 different industry awards. We have recently been successful in securing Ofwat Innovation Funding for a national SuDS platform (with Southern Water) and for developing a Rainwater Management Platform (with Wessex Water). We were also one of the ten finalists for the Manchester Prize for which we were funded to develop an AI sewer spill water quality impact tool.

About the role

We are looking for an enthusiastic and highly motivated individual with existing demonstrable drainage modelling expertise and skills in data analysis who can help us with the development of new ideas and solutions alongside providing robust established support to our clients.

About you

You will have at least a years surface water and/or wastewater drainage modelling experience (using InfoWorks ICM or equivalent) and ideally also have expertise in GIS and coding to help present and solve complex data-intensive problems. You will have good understanding of risks and solutions relating to urban runoff. Importantly you will be a team player.

You will have a minimum professional qualification of a Bachelors degree in a relevant discipline and have studied mathematics to Alevel (or equivalent).

Further information

• Download a full job description and person specification.
• Salary: Competitive (depending on experience).
• The closing date for applications is 13th February2026.

Why choose us

• Exceptional benefits: Enjoy a defined contribution pension scheme with a minimum 10% employer contribution (matched up to an additional 5%) 25 days of holiday plus bank holidays life insurance and health insurance providing dental/optical cash back.
• Inclusive culture: Our commitment to equality diversity and inclusion is embedded in our core values.
• Inspiring the next generation: We are passionate about inspiring the next generation of engineers and scientists through outreach with our STEM Ambassadors.
• Reach your full potential: We invest in our people offering a chance to make a real impact from day one.
• Work-life balance: We understand the importance of a healthy work-life balance and offer both hybrid working and flexi time. We are also open to exploring other flexible working arrangements including part-time.

HR Wallingford is a non-profit-distributing organisation allowing us to reinvest into strategic research and innovation. This ensures that our staff have the opportunity to work on exciting research and development projects to create the next-generation tools and technology and to apply them to solve water related problems around the world in novel ways. Collaboration and teamworking is at our core both internally and with industry and academic partners. Consequently we actively encourage ongoing training and development opportunities and pride ourselves on our open inclusive and supportive work environment.

How to apply

If you are excited about this role but are unsure about whether youre the right fit or have sufficient experience please email before applying.

If you are interested and meet our requirements then please apply directly via our website providing your CV and a short covering letter.

Additional information

Our privacy notice for job applicants available from our website explains how we collect and process the personal data you may provide us when you apply for a job with us through our websites or by any other means. This notice also explains how well store and handle that data and keep it.

HR Wallingford are an equal opportunity employer and value diversity in our workplace. We do not discriminate and work to create an inclusive culture across our business.

How to apply

If you are excited about this role but unsure whether youre the right fit we encourage you to apply. Were also happy to answer any questions by emailing

Interested Please applyproviding your CV with covering letter.

Additional information

Our privacy notice for job applicants available from our website explains how we collect and process the personal data you may provide us when you apply for a job with us through our websites or by any other means. This notice also explains how well store and handle that data and keep it.

HR Wallingford are an equal opportunity employer and value diversity in our workplace. We do not discriminate and work to create an inclusive culture across our business.