Closing Date
31/01/2026
Job Title: Senior Clean Water Modeller
Location: Falmer – Can discuss Remote / Hybrid options
Contract Type: Perm, Full Time
Hours:37
Salary: to be discussed at the screening stage
About the role
We are looking for an experienced Senior Clean Water Modeller with in-depth expertise in InfoWorks WS Pro to support the development and application of water distribution models. You will play a key role in supporting strategic planning, operational optimisation, leakage reduction, and regulatory compliance across potable water supply networks.
What you will be responsible for:
Model Development & Calibration: Lead the development, maintenance, and calibration of clean water hydraulic models using InfoWorks WS Pro.Validate models against telemetry, logger, and flow/pressure test data to ensure model accuracy and reliability.
Operational and Strategic Planning: Conduct scenario modelling to assess network performance under normal and stress conditions (e.g., peak demand, outage events, contamination response).Support operational teams with real-time and predictive modelling for pressure management, network reconfiguration, and resilience assessments.
Investment & Growth Planning: Provide evidence-based modelling for capital investment planning (e.g., mains reinforcement, DMA creation, new development impact). Collaborate with asset planners and engineers to optimise solutions for WRMP, AMP and business plan programmes.
Water Quality Modelling:Simulate water age, chlorine decay, and booster performance using WS Pro tools to support water quality risk management.Analyse impacts of operational changes on service levels, discolouration risk, and compliance with water quality regulations.
Leadership & Innovation:
Mentor and support junior modellers and analysts.
Develop and improve modelling standards, QA/QC procedures, and workflow automation (e.g., Python, SQL).
Champion best practice in data integration, demand forecasting, and digital twin initiatives.
Stakeholder Engagement & Reporting:
Prepare and present clear technical reports and visualisations to internal and external stakeholders. Engage with operational, planning, GIS, and regulatory teams to align model outcomes with business objectives.
What you'll bring to the role:
* Understanding of water and wastewater engineering within the UK Water Industry.
* Essential: MEng/BEng/BSc or HNC in Engineering, Environmental, or a related science subject
Southern Water is at the forefront of transforming Britain's water industry, investing significantly to enhance resilience, sustainability, and service excellence. With £7.8bn planned investment for, this is an unparalleled opportunity to join a business committed to delivering a generational shift in the way water services are managed.
You will be joining at a time of significant change, working alongside a highly skilled leadership team with a clear vision for the future. We offer an environment where senior professionals can make a meaningful impact, influence major strategic decisions, and drive long-term value creation
Growth-Oriented
"We understand that great talent comes in many forms. If this role excites you and you share our commitment to delivering sustainable solutions for our communities, please apply—even if your experience doesn't perfectly match every requirement. We'll support your growth and development."
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