Our Team
Jerry Pfeiffer has supported the Federal Government for over 23 years in both
contractor and active duty military roles. Prior to co-founding GSJ, Jerry
founded and served as President of Xator Corporation, a successful provider of
engineering, operations and maintenance, and security services to the Department
of Defense. He served as Vice President of Business Development for Serco Group
North America; Director of Business Development for General Dynamics Advanced
Information Systems; and held a variety of technical, management and business
development assignments for Veridian Corporation. He has also consulted for a
variety of large government services contractors. Jerry began his career as an
officer in the U.S. Air Force at Eglin Air Force Base, Florida. He has a
Bachelor of Science degree in Electrical Engineering from Ohio Northern
University and a Master of Science degree in Management from Troy State
University. Jerry brings a proven track record in starting and growing a
government services business, recruiting personnel, and managing programs. His
recruiting experience spans from recruiting entry level workers to key personnel
and company executives.
David Whitmore is a senior
executive experienced in the leadership of Global Human Resources & Business
Support Operations for fortune 500 Corporations. With over 25 years of
experience in public and private Company environments he has deep expertise
shaping business strategy, solving complex organizational issues, transforming
cultures and improving financial performance.
David's experience cuts across a variety of commercial & government
contracting environments: Risk mitigation, Financial Services, Information
Management, Energy, Engineering Services, Telecommunications, Defense and
Manufacturing. Most recently, David was the Senior Vice President of Human Resources for USIS of Falls
Church Va.. He was responsible for world wide Human Resource Strategies for the
nation’s largest provider of business intelligence, security investigations, background screening, risk mitigation and specialized
security services for government and commercial markets. He has also held senior executive
positions in the area of Human Capital Management and Human Resources for
Municipal Mortgage & Equity LLC, FMC Corp, DynCorp, Columbia Energy Group, and
Lockheed Martin Corp. He has served as chief advisor and consultant to several
Boards of Directors with special emphasis on Executive Compensation,
Organizational Development and Succession Planning.
He received his Master of Science in Education-Personnel & Guidance from Northern Illinois
University and his Bachelor of Science –in Psychology/Sociology from Illinois
State University. He has served on the Board of Directors for the Babe Ruth
Sports Legend Museum of Baltimore. Mr. Whitmore resides in Reston Virginia with
his wife and family.
Mark Skinner is a senior executive with over 22 years experience in management
and business development in the federal market. He has managed marketing,
business development, legislative affairs and corporate communications for
government system integrators. Mark has been involved in several key industries
serving the government vertical to include Aerospace, Security, Homeland
Security, and Information Technology. He most recently was the Vice President,
Business Development, for USIS National Security Division where he built and
directed a business development program that delivered new business in Middle
East and Sub-Saharan Africa supporting the DoS and DoD and new business at DHS
and the CIA. Prior to working with USIS, Mark directed all system integrator
alliances for the government vertical on a worldwide basis for Adobe Systems
Incorporated. He also served as Senior Vice President of Marketing and Business
Development for EAI Corporation. During Mark’s tenure at EAI, the company
realized revenue growth of 96% and won three large contracts resulting in $950m
in new contract backlog. Mark also served as the Vice President of Business
Development at General Dynamics/Veridian Engineering.