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Leonid Tyryshkin is a Senior Software QA Engineer at Bahwan CyberTek, with experience dating back to December 1998. Tyryshkin's extensive career includes roles as a QA Engineer at Borland from December 1998 to October 2000, followed by positions at Geocast Network Systems, Inc. from October 2000 to April 2001, Actuate from May 2001 to January 2002, and Barnes & Noble, Inc. from October 2010 to July 2016. Since July 2016, Tyryshkin has contributed to Bahwan CyberTek.