Hydraulic Modeller – Water Supply & Sewerage Networks

Role Summary The Hydraulic Modeller will be responsible for the development, calibration, analysis, and optimization of water supply and sewerage network models to support master planning, design, rehabilitation, and operational improvement projects. The role involves hydraulic modelling, capacity assessment, system performance evaluation, and preparation of technical recommendations for utility and infrastructure projects. Key Responsibilities • Develop, update, and manage hydraulic models for water distribution and sewerage collection systems. • Perform network analysis for pressure, flow, velocity, storage, pumping, and system capacity assessments. • Conduct model calibration and validation using field data, SCADA records, flow monitoring, and operational data. • Evaluate existing and future system performance under growth, demand, and climate resilience scenarios. • Undertake water supply studies including demand forecasting, network optimization, reservoir sizing, pump station analysis, and pressure management. • Undertake sewerage studies including dry weather flow analysis, infiltration/inflow assessment, surcharge analysis, and capacity evaluation. • Integrate GIS, survey, asset, and utility data into hydraulic models. • Identify network bottlenecks and recommend upgrade, rehabilitation, and expansion measures. • Support preparation of master plans, feasibility studies, detailed designs, and technical reports. • Coordinate with multidisciplinary teams including water, wastewater, GIS, civil, and environmental engineers. Software Skills • WaterGEMS / WaterCAD • SewerGEMS / SewerCAD • InfoWorks WS Pro • InfoWorks ICM • ArcGIS / QGIS • AutoCAD / Civil 3D • MS Excel; Python knowledge preferred Key Competencies • Water supply network modelling and optimization • Sewerage and drainage system modelling • Hydraulic and hydrologic analysis • Model calibration and validation • GIS and asset data integration • Demand forecasting and infrastructure planning • Technical report preparation and client coordination Preferred Experience • Utility master planning and DPR assignments • Non-Revenue Water (NRW) and DMA studies • Sewer network rehabilitation and expansion projects • Large-scale urban infrastructure and airport developments • Smart utility and digital twin initiatives