About KOJOH
KOJOH is a dataset marketplace built for people who want a data career. Not another folder of clean CSVs, but real business problems with the messy data they came with.
Why we exist
Most learning datasets are toy problems. Employers hire for judgment on real, ambiguous data. Every KOJOH dataset starts as an actual problem pulled from Logistics, Sales, Service, Product, E-commerce, or HR, with its own schema, its own story, and a challenge worth solving.
What makes it different
Datasets are organized by job track (Data Analyst, Data Engineer, Product Analyst, Quality Analyst) rather than generic topic labels. Every dataset keeps its own independent schema, because real business data never looks the same twice. Search is powered by a transparent ontology of job titles, tools, and domains, not an AI black box.
Built by
KOJOH is built and maintained by Yash Chauhan, a working data analyst who spent years watching junior candidates struggle to bridge the gap between coursework and real analytics. This is the resource he wished existed.
Version
You're on KOJOH v0.3.0, the accounts, profile panel, and settings release. Full changelog coming soon.