Sherwin Tan is a Senior Land Surveyor with the Housing & Development Board (HDB), the Authority for public housing in Singapore. Graduated with a Bachelor in Geomatics Engineering, he is experienced in cadastral surveys, engineering surveys, GIS data acquisition, BIM and hydrographic survey. Collaborating closely with architects, planners, engineers and relevant regulatory authorities, he manages the surveying requirements for housing and infrastructure development projects. He provides survey consultancy to projects managers and is part of a team managing the land survey contracts for HDB. Sherwin lectures on subjects such as spatial data infrastructure and GIS for the diploma programme at Building and Construction Authority Academy.