Drainage & Storm Water Modeller

Role Summary The Drainage & Storm Water Modeller will be responsible for planning, analysis, design, and hydraulic modelling of urban drainage and storm water systems. The role involves developing hydrologic and hydraulic models, assessing flood risks, evaluating drainage infrastructure capacity, and supporting resilient storm water management solutions for urban, airport, industrial, and infrastructure projects. Key Responsibilities Develop, calibrate, and validate storm water and drainage network models. Perform hydrologic and hydraulic analyses for storm water management, urban drainage, and flood mitigation projects. Assess existing drainage infrastructure capacity and identify system deficiencies. Conduct catchment delineation, runoff estimation, and flood routing analyses. Evaluate the performance of pipes, channels, culverts, detention ponds, retention basins, and pumping stations. Simulate various rainfall and climate scenarios to assess flood risks and network resilience. Prepare drainage master plans, flood mitigation strategies, and storm water management plans. Integrate GIS, survey, LiDAR, DEM, and utility data into hydraulic models. Analyze model outputs and prepare flood inundation, surcharge, and capacity assessment reports. Coordinate with hydrologists, GIS specialists, civil engineers, and urban planners. Software Skills InfoWorks ICM ICM Infoworks Drainage EPA SWMM SewerGEMS / CivilStorm HEC-HMS HEC-RAS (1D/2D) MIKE URBAN / MIKE FLOOD ArcGIS / QGIS AutoCAD / Civil 3D Key Competencies Storm water network modelling Urban drainage system design Hydrologic and hydraulic analysis Flood risk and inundation modelling Catchment and watershed analysis Model calibration and validation GIS and terrain data integration Climate resilience and flood mitigation planning Technical reporting and stakeholder coordination Preferred Experience Storm Water Master Plans (SWMP) Flood Risk Assessment (FRA) Airport and large infrastructure drainage design Urban flood management and resilience projects Sustainable Urban Drainage Systems (SuDS) / Low Impact Development (LID) Smart city and utility infrastructure projects Qualifications Bachelor's Degree in Civil Engineering, Water Resources Engineering, Environmental Engineering, or related discipline. Master's Degree in Water Resources, Hydrology, or Hydraulic Engineering preferred. Experience 3-8 years of experience in drainage, storm water, and flood modelling projects. Experience in urban infrastructure, airport drainage, smart city, industrial, or large-scale development projects is desirable. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future. Assystem provides engineering, project management and digital services to optimise the performance and safety of critical infrastructure throughout its lifecycle. The company first came to India having acquired Stup Consultants Pvt Ltd in 2021 and L&TIEL in 2024. The company combines its globally recognised expertise in complex project management, with deep-rooted local experience cross full spectrum of infrastructure – from energy, transportation and urban development to water. Today, Assystem has a strong community of 1,500+ multidiscipline engineering experts connected across 8 offices in India. The Assystem Group is one of the world’s leading independent nuclear engineering companies, ranked among the top three globally, with 60 years of experience in complex and highly regulated environments. With 8,000 experts across 13 countries, Assystem supports the development of low-carbon energy. For company profile, please visit the website :-