Open to opportunities

Sanjay Mohan

@sanjaymohan

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GIS and Mapping expert specializing in georeferencing, spatial databases, and automated mapping workflows.

India

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What I'm looking for

I seek remote or hybrid roles delivering high-quality geospatial products, emphasizing automated workflows, data integrity, and collaboration with cross‑border teams.

I am a GIS and Mapping Specialist with over 30 years of professional experience, combining a decade in Military Survey units of the Indian Army with long-term remote work for U.S. clients. I specialize in georeferencing, digital cartography, spatial database management, DEM and orthophoto generation, and automated geoprocessing.

I have developed Python and VBA tools for batch processing, feature validation, and topology correction, and designed automated digitization QA that reduced error rates by 90%. I routinely create professional vector maps using QGIS, Global Mapper, Adobe Illustrator with MAPublisher, and work with both open-source and proprietary GIS platforms.

I hold an M.Tech. in Remote Sensing & GIS (Photogrammetry specialization) and have taught GIS, photogrammetry, and cartography at technical institutions. I am committed to delivering accurate, reliable mapping products and to collaborating remotely across time zones for secure, high-quality geospatial projects.

Experience

Work history, roles, and key accomplishments

Current

GIS and Mapping Expert

Current

Topographics.org

Jan 2018 - Present (7 years 11 months)

Provide remote georeferencing, digitization, and cartographic product creation for U.S. regions using open-source data; developed Python and VBA tools to automate batch processing and QA, reducing digitization errors by 90%.

Georeferencing QGIS Global Mapper Python (GDAL Rasterio)VBA DEM Orthophoto Generation QA&QC

Military Survey Specialist

Indian Army

Jan 1989 - Dec 2018 (29 years 11 months)

Led digital mapping, aerial photo interpretation, DEM extraction and large-scale vector database compilation across military survey units, and developed automation enforcing 600+ feature standards to improve mapping consistency.

Photogrammetry Cartosat SRTM ETM+DEM Extraction DGPS

Education

Degrees, certifications, and relevant coursework

Indian Institute of Remote Sensing

Master of Technology, Remote Sensing & GIS

M.Tech. in Remote Sensing & GIS with a photogrammetry specialization; thesis on using open source data for topographic mapping and 3D visualization of remote inaccessible areas.