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About Us



Ken Silva

Senior Vice President, Cyber Strategy
ManTech Mission, Cyber & Intelligence Solutions Group

Mr. Silva has served as Senior Vice President for cyber strategy of Mission, Cyber and Intelligence Solutions group at ManTech International Corporation since November, 2011. Mr. Silva is a leader in the Cyber Community and has a distinguished background in technological security and cyber technology. Mr. Silva previously served as Senior Executive Adviser for cyber technologies at Booz Allen Hamilton, and served as Chief Technology Officer and Senior Vice President of VeriSign Inc. 

David Shulkin

Executive Director
Technology and Services

David is responsible for HBGary’s Engineering, Quality Assurance, Customer Support, and Technical Services. He previously served as Director of Global Product Engineering at VeriSign and has over 25 years of technical, management and business development experience. David also has experience with multiple high technology commercial companies and government contractors, including, SRA International, Loral/Lockheed Martin, and Rockwell. He began his career as a flight controller for the U.S. space shuttle program and has worked on numerous national and global technical programs.

Jim Butterworth

Chief Security Officer

Jim Butterworth is the CSO at HBGary. Previously, he worked at Guidance Software, where he was the Senior Director of Cyber Security. Exclusively client focused, Jim brings 15 years of "In-the-Trench" experience in computer network operations and incident response with him, having conducted engagements worldwide, in every industry, specializing in Critical Infrastructure Protection and highly sensitive networks. In addition, Jim completed a distinguished and decorated 20 year career as an Electronic Warfare/Cryptologist with the United States Navy.

Scott Pease

Director of Engineering

Scott is the Director of HBGary's Engineering Group. Prior to joining HBGary, he was an engineering manager with Hewlett-Packard Company working on various networked storage technologies. Before HP, Scott managed software development in Compuware's EcoTools division, and was a Software Engineer for several Defense contractors, including Raytheon, Texas Instruments, and Tiburon Systems. Scott is a graduate of the United States Naval Academy in Annapolis, Maryland, and served in the United States Navy through two Arabian Gulf deployments from 1990 through 1994.