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Alexander Lefterov was the owner of ATIA OOD from January 1997 to November 2013. Alexander is currently the CEO of Tiger Technology.

Alexander Lefterov has a Master's degree in Computer Science from Sofia University St. Kliment Ohridski, and a Bachelor's degree in English Language and Literature, General, from 114 AEG. Alexander also has a MBA from Harvard Business School and a MBA from Stanford University Graduate School of Business.

Some direct reports include Nikola Apostolov - Head of Business Development, Lance Kelson - EVP.