Job Title: Senior Clean Water Modeller
Location: Falmer (Hybrid) – Remote options available.
Closing Date: 31/12/2025.
Salary: Salary to be discussed at the screening stage.
Job Overview
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.
Responsibilities
* Model Development & Calibration: lead development, maintenance and calibration of clean water hydraulic models using InfoWorks WS Pro; validate against telemetry, logger and flow/pressure test data for accuracy.
* Operational and Strategic Planning: conduct scenario modelling to assess network performance under normal and stress conditions; 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 regulations.
* Leadership & Innovation: mentor and support junior modellers and analysts; develop and improve modelling standards, QA/QC procedures and workflow automation (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.
Qualifications
* 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.
Benefits
* Full‑time Monday to Friday 37 hours a week.
* Hybrid working between Falmer office and home.
* Company and performance‑related bonus.
* Generous pension up to 11% company contribution.
* 25 days annual leave.
* Life assurance equal to 4× salary.
* Salary sacrifice electric car scheme (after 6 months service).
* Health Cash Plan.
* Fully funded eye tests.
* Two paid volunteering days a year.
* Occupational health service.
* Discounts with over 800 popular retailers.
* Digital GP service.
* Study support may be available for job‑related qualifications.
* Competitive maternity leave and flexible return‑to‑work options.
* Cycle to work scheme.
* Private medical insurance (Senior Grades only).
All applicants must be eligible to live and work in the UK. Evidence of eligibility (passport, long‑birth certificate etc.) and proof of address (dated within last 3 months) are required during the recruitment process.
Southern Water is an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community.
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