Pushparaj S

GIS & Remote Sensing professional with 13.5+ years of experience in geospatial analysis, Remote Sensing, spatial modelling, GIS data management, environmental and hydrological studies, GPS/field surveys and geospatial data validation. Experienced in watershed and water-resource analysis, hydrogeological mapping, drainage assessment, rainfall and runoff analysis, land-use/land-cover mapping, satellite imagery interpretation and thematic spatial modelling. Hands-on experience integrating field/GPS data and Remote Sensing products into GIS workflows and producing technical maps and spatial datasets.

Strong working knowledge of ArcGIS/ArcMap, QGIS, ERDAS Imagine, Google Earth Engine, Pix4D Mapper, AutoCAD Map, TerrSet and HEC-RAS, with experience in spatial analysis, georeferencing, GIS data preprocessing, quality control, cadastral mapping and geospatial visualization. Holds an M.Sc. in Spatial Information Technology and B.Sc. in Geography, with multidisciplinary experience across water resources, environmental analysis, Remote Sensing, infrastructure-related GIS and spatial planning.

GIS Executive at Centre for Urbanization, Buildings & Environment [CUBE] (2021-02 – 2024-05)

• Developed GIS-enabled management information maps for industrial parks to support spatial visualization and management of industrial assets.
• Conducted rooftop area assessment for industries and supported recommendations for rainwater harvesting.
• Developed watershed maps for industrial locations to support water-resource and environmental assessments.
• Processed drone imagery using Pix4D Mapper for geospatial mapping and analysis.
• Applied Ground Control Points (GCPs) for image correction and generated DTM, DSM and orthomosaic products.
• Integrated GIS, drone and field-derived information to support geospatial and construction-management activities.

Senior GIS Engineer at Agira Technologies Solutions Private Limited (2019-09 – 2020-04)

• Performed GIS data preprocessing and transformation to prepare spatial datasets for downstream applications.
• Captured building and parking information and prepared land parcel datasets using satellite and hybrid imagery.
• Performed GIS quality checks and validation using QGIS to maintain spatial accuracy and data consistency.
• Prepared and uploaded spatial datasets in shapefile format for server-based applications.
• Supported geospatial data preparation for location-based and web-oriented applications.

Junior Research Fellow – GIS & Remote Sensing at Sathyabama Institute of Science and Technology (2017-10 – 2019-09)

Research Project: Strategies to Harness Runoff from Mountainous Watersheds – A Case Study of Adiannamalai Hill, Tamil Nadu

• Developed base maps and watershed maps using Survey of India topographic sheets at 1:50,000 scale.
• Conducted GPS-based field surveys covering road cross-drainage structures, dug wells, borewells and lithological information.
• Collected and maintained tank water-level data and field observations for hydrological analysis.
• Conducted socioeconomic and field surveys and translated field observations into spatial datasets and thematic maps.
• Conducted geophysical surveys using an Earth Resistivity Meter through sounding and profiling methods.
• Processed satellite data from GLCF/USGS for Land Use/Land Cover change analysis.
• Developed thematic maps covering rainfall variability, soil, geology, relief, subsurface lithology, groundwater, geomorphology, fractures and bedrock.
• Analysed runoff potential and identified approaches to improve surface and groundwater availability.

Project Fellow – GIS & Spatial Analysis at University of Madras, Department of Geography (2012-11 – 2017-09)

Research Project: Transformation and Regeneration of Small Towns – Geographical, Socio-Economic & Ecological Perspectives, Chennai Metropolitan Region

• Developed a digital base map of the Chennai Metropolitan Area using topographic sheets.
• Developed census-based choropleth maps using ArcMap.
• Conducted socioeconomic field surveys and converted primary data into spatial outputs.
• Analysed Land Use/Land Cover changes using satellite data from GLCF/USGS.
• Developed rainfall variability, soil, geology and geomorphology maps.
• Used SPSS for socioeconomic data analysis.
• Integrated Google Earth and satellite data to analyse transformation and regeneration patterns across the Chennai Metropolitan Region

Programmer Analyst – GIS at Cognizant Technology Solutions (2010-07 – 2012-07)

Project: First American Flood Data Services (FAFDS)

• Evaluated and validated cadastral datasets, identifying missing, inconsistent and incorrect parcel information.
• Generated U.S. land parcel datasets using satellite and cadastral imagery for real-estate, tax and insurance applications.
• Performed first- and second-level GIS quality control and database validation.
• Used MS Access queries to identify and rectify discrepancies between existing and updated datasets.
• Performed edge matching and geometric correction to align spatial features across adjoining datasets.
• Applied GIS editing techniques including snapping and overshoot correction.
• Used AutoCAD Map and ArcMap for spatial editing and cadastral data processing.
• Prepared and uploaded spatial datasets in shapefile format to servers.

GIS Consultant at GIS Consultant (2006-09 – 2010-06)

• Developed thematic GIS datasets covering Land Use/Land Cover, soil fertility and rainfall distribution.
• Performed spatial analysis and geospatial data visualization using GIS tools.
• Applied IDW interpolation for soil fertility mapping.
• Conducted crime hotspot analysis and spatial pattern mapping using CrimeStat.

M.Sc. in Spatial Information Technology – University of Madras (2004 – 2006)

B.Sc. in Geography – University of Madras (1999 – 2002)