Wastewater Hydraulic Modeller

Wastewater Hydraulic Modeller

Location:

Hybrid – Reading (Sewer Treatment Works), RG2 0RP

Salary: £45,940 to £68,000 per annum (dependent on experience)
Contract Type:
Full-time, Permanent
Division:
Asset Operations & Capital Delivery

Closing Date: 12/11/2025

UnifyHQ is proud to be working in partnership with our client, a leading UK water and wastewater provider, to recruit an experienced Wastewater Hydraulic Modeller. This is a key opportunity to contribute to nationally significant programmes including the Water Industry National Environment Programme (WINEP) and Drainage and Wastewater Management Plans (DWMP). You’ll lead the development and calibration of Integrated Catchment Models (ICM), manage field investigations, and drive solution development to support environmental resilience and network performance.

The role offers a blend of technical delivery, project management, and strategic input across high-impact infrastructure programmes.

• Lead the review, update, and calibration of complex ICM models using diverse data sources
• Plan and oversee flow surveys, asset investigations, and field data collection
• Use modelling insights to support optioneering and strategic solution development
• Manage end-to-end delivery of modelling programmes, ensuring quality, budget, and stakeholder alignment
• Communicate technical findings clearly to both technical and non-technical audiences
• Collaborate across multi-disciplinary teams to deliver robust, data-driven outcomes

• Degree or professional qualification in Civil/Environmental Engineering, Hydrology, or related discipline
• Advanced proficiency in ICM modelling software with a track record of complex model development
• Experience working for or on behalf of a water or sewerage undertaker
• Strong understanding of wastewater network assets and operational challenges
• Excellent report writing and numerical analysis skills
• Proactive, collaborative, and capable of independent decision‑making

• Experience supporting regulatory investigations under SOAF, INV4, WINEP, or DWMP frameworks
• Technical leadership and mentoring of junior modellers
• Familiarity with compliance requirements and environmental planning standards

• Competitive salary from £45,940 to £68,000 depending on experience
• 26 days annual leave (plus bank holidays), rising to 30 with service
• Performance-related pay linked to individual and company targets
• Generous pension scheme via AON
• Health and wellbeing benefits including annual health MOTs, physiotherapy, counselling, Cycle to Work scheme, shopping discounts, and life assurance

Our client is the UK’s largest water and wastewater provider, serving over 16 million customers. Their mission is to build a better future for people, communities, and the environment through sustainable infrastructure and innovation. They offer a collaborative and inclusive working environment, with meaningful career development and the chance to make a real impact.