Senior Wastewater Hydraulic Modeller

Job Title: Senior Wastewater Hydraulic Modeller
Location: Reading (Hybrid working available)
Salary: £45,940 – £68,000 per annum (DOE)
Shift Type: Monday to Friday, 36 hours per week
Benefits: 26–30 days holiday + bank holidays, performance-related bonus, generous pension, healthcare & wellbeing support, Cycle to Work, life assurance, retail discounts

The Opportunity
A leading UK water and environmental services organisation is seeking an experienced Wastewater Hydraulic Modeller to support critical regulatory and infrastructure programmes, including DWMP and WINEP delivery. This is a senior technical role with responsibility for complex catchment modelling, optioneering, and project leadership, contributing directly to long-term environmental protection and network resilience strategies.

Key Responsibilities

• Lead development, review and calibration of Integrated Catchment Models (ICM) using diverse datasets.
• Plan and oversee flow surveys, asset inspections and field investigations to ensure high-quality model inputs.
• Drive optioneering studies, identifying and evaluating solutions to manage hydraulic and environmental risk.
• Manage end-to-end ICM modelling programmes, including budgets, resources and stakeholder engagement.
• Produce clear, defensible technical reports for both regulatory and non-technical audiences.
• Provide technical guidance and mentoring to junior modellers where required.

Candidate Profile

• Degree (or equivalent) in Civil / Environmental Engineering, Hydrology or related discipline.
• Strong, hands-on expertise with ICM software, including building, calibrating and validating complex models.
• Proven experience working for or on behalf of a water or sewerage undertaker.
• Solid understanding of wastewater network assets and hydraulic behaviour.
• Confident communicator with strong numerical and reporting capability.
• Comfortable working independently and making sound technical judgements.

Desirable Experience

• Regulatory investigation support including SOAF, Environment Act (INV4), WINEP and DWMP programmes.
• Experience in technical leadership, mentoring or reviewing the work of other modellers.

Pertemps Engineering Division
If you are an experienced Wastewater Modeller seeking a technically challenging role with long-term programme visibility and genuine impact on environmental outcomes, please apply today.
For further information, contact the Pertemps Engineering Division. All applications will be handled in strict confidence.