Clean Water (Hydraulic) Modeller

Purpose And Scope Of The Role

Tetra Tech’s Water Consultancy is seeking a Clean Water Hydraulic Modeller to support AMP8 and AMP9 programmes across the UK. You will construct, calibrate and apply hydraulic models (InfoWorks WS, Synergi Water or similar) to deliver optioneering, analysis and design inputs that inform investment and operational decisions. Day‑to‑day you will lead modelling teams, ensure compliance with client standards, manage commercial performance and contribute to bids and process improvements across regional programmes.

Your Impact In This Position

You will immediately improve model reliability and evidence‑based decisions that reduce risk to water supply. Over the medium term you will lead complex modelling projects, shape modelling practice and mentor colleagues. In the longer term this role offers progression to principal or technical leadership, with scope to influence national frameworks and drive digital innovation in modelling workflows.

Core Capabilities

• Hydraulic modelling leadership - Lead model construction, calibration and verification; translate outputs into pragmatic option appraisals and design inputs.
• Technical delivery & quality assurance - Ensure modelling outputs meet governance, audit and client specification requirements and maintain traceable documentation.
• Team leadership & people development - Line‑manage and mentor modelling staff, plan workloads, drive performance and foster a culture of continuous improvement.
• Commercial & programme management - Own forecasting, commercial performance and proposal development for modelling packages and support programme planning.
• Digital & data proficiency - Advanced Excel; Visual Basic or scripting competence desirable; experience with GIS (MapInfo, ArcGIS, QGIS) and data workflows.

Expected: degree in a relevant technical subject. Desirable: postgraduate qualifications and professional membership. Full driving licence preferred.

Work patterns & locations

Roles available across multiple UK offices; hybrid working is supported. Regular travel to clients or other offices may be required. Flexible arrangements considered to balance collaboration and focused delivery.

Why join Tetra Tech?

Tetra Tech is a leading provider of consulting and engineering services working across the full project lifecycle worldwide. We have a wide range of expertise across our teams, providing a global support network with a personalised approach to client relationships to better understand where we can add value. We provide a collaborative environment that supports individual performance, innovation, and creativity.

We support public and private sector clients on local, national, and international projects to deliver sustainable and resilient solutions. Our operations in the UK, Ireland, and the Netherlands include more than 6,000 employees who are Leading with Science® to solve our clients’ most complex problems.

In alignment with the Equality Act 2010, we will make reasonable adjustments to support candidates and employees requiring additional arrangements. This could include adaptations to work schedules, training approaches, or the physical workspace. Please inform us if you need any accommodations during the recruitment process or in your day-to-day role.

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