LeeX CEO Oscar Awowari on Building a Geospatial Search Layer for City Discovery

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Oscar Awowari, Founder and CEO of LeeX, is developing a city discovery platform that goes beyond conventional text search to enable location-based discovery of businesses, events, and infrastructure. The core engineering challenge lies in building a dedicated geospatial search layer that can answer spatial queries such as finding places within a set radius or within a geographic boundary. To handle this efficiently, the system relies on spatial indexing, which narrows search candidates to a relevant geographic region rather than scanning every location in the database. Techniques like radius search and bounding box filtering are used in combination, applying cheaper broad filters first before running more precise distance calculations. Awowari emphasizes that scalability must be considered from the outset, as the platform is designed to grow from thousands to potentially millions of indexed locations across a city.

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