He is currently lead architect in the SQL Engine group which builds the core engine for the SQL Server Product. Previously he was the lead architect in SQL Data Programmability group building the Entity Framework in ADO.NET. José has contributed to numerous programmability and extensibility features in the SQL Server products. Before joining Microsoft in 1994, José was a Member of the Technical Staff at the Computer Science Laboratory at Texas Instruments where he was a principal investigator in the development of DARPA Open-OODB, an object-oriented database system. He has over 20 granted or pending patents. José received a computer systems engineering degree from ITESM, Monterrey, Mexico, and M.Math and Ph.D. degrees in computer science from the University of Waterloo, Canada.