Principal Wastewater (Hydraulic) Modeller

Lead wastewater modelling that shapes resilient communities across Scotland and the UK

Purpose and scope of the role:
Tetra Tech’s Water Consultancy is seeking a Principal Wastewater Modeller to build and lead a high-performing team of Wastewater Hydraulic Modellers, based in either Glasgow or Edinburgh. You will lead technical delivery across major UK frameworks, including Scottish Water, from feasibility through to detailed design. The role will involve defining catchment strategies, directing hydraulic modelling and design inputs, and ensuring robust HSE, quality and governance standards across multi-million-pound wastewater programmes. Day to day, you will manage modelling standards, commercial performance, resource planning and risk, while supporting bids, proposals and client engagement with water companies and delivery partners.

Your impact in this position:
In the short term, you will strengthen modelling assurance and guide comple...