Tomaž Kaštrun is an SQL Server developer and data analyst with more than 15 years experience in business warehousing, development, ETL, database administration, and query tuning. He also has more than 15 years experience in data analysis, data mining, statistical research, and machine learning.

He is a Microsoft SQL Server MVP for Data Platform and has been working with Microsoft SQL Server since version 2000. He is a blogger, the author of many articles, the co-author of a statistical analysis book, a speaker at community and Microsoft events, and an avid coffee drinker.