Principal Hydrologist Location: Hemel Hempstead A fantastic opportunity has arisen for an experienced Principal Hydrologist to join a leading environmental and engineering consultancy delivering hydrology, flood risk and land development services across the UK. This is an excellent position for someone who enjoys technical leadership, client engagement and contributing to the successful delivery of major development and infrastructure projects. The OpportunityBased in Hemel Hempstead, with hybrid working available, you will lead the preparation of Flood Risk Assessments, drainage assessments, EIA contributions and hydrological modelling studies. You will act as a key point of contact for clients and stakeholders, while supporting and mentoring junior colleagues across a wide range of challenging and rewarding projects. This is a technically varied role offering a clear route for progression within a respected and supportive team. Key Responsibilities Lead the delivery of Flood Risk Assessments, hydrology reports and EIA documentation. Prepare and review technical tenders, calculations, model files and supporting reports. Coordinate project delivery, ensuring high standards and timely completion. Liaise with LLFAs, the Environment Agency and other regulatory bodies. Use hydrological modelling tools including FEH, WINFAP, Flood Modeller and HEC-RAS. Support drainage assessments and outline design work. Assist with project programmes, communication and internal ..... full job details .....