Mr. Zollar served as Executive Advisor with Siris Capital Group, LLC from March 2021 to November 2024, and previously as Executive Partner from February 2014 to March 2021. Prior to his role with Siris Capital Group, Mr. Zollar served in various capacities during his 34-year career at IBM. Before retiring in January 2011, Mr. Zollar was the general manager of IBM Tivoli Software from July 2004 until January 2011, where he was responsible for the executive leadership, strategy, and P&L of the Tivoli Software. Previously, Mr. Zollar was general manager, IBM iSeries, where he was responsible for the executive leadership, strategy, and P&L of the iSeries (formerly AS/400) server product line. Before that he held senior management positions in each of IBM’s diverse software businesses, including general manager of IBM Lotus Software.