Our Team

John T. Bosserman
President & CEO

John is a Marine Corps veteran with over 15 years of federal contracting experience specializing in the development, test, fielding, and training of complex radar, command & control, and weapon systems. Prior to founding SigmaCorps in Feb 2019, John's roles included USMC Service Liasion to the Joint Staff including Joint Integrated Air and Missile Defense and distributed test and certification organizations, Program Manager for systems engineering and testing of command and control, radar, and weapon systems, Operations and Technical Director for Defense Department industry partners with sales exceeding $85M, and Vice President for a global small business with operations across the world. 

Rhonda Ferris
Chief Financial Officer

Rhonda joined the SigmaCorps Leadership team in August 2019 as the CFO. She is a certified Project Management Professional and holds an MBA from Kennedy-Western University and an MBA in Management Accounting from Walden University.  She is a 2000 Honors Graduate from the University of Nevada Las Vegas, School of Business and Economics earning a bachelor's degree in economics.  In 2011 she earned dual Masters’ Certificates in Commercial Contracts Management and Government Contracts Management from Villanova University. Rhonda is an active member of the Project Management Institute, the Institute of Management Accountants and the International Chapter of the American Association of Cost Engineering, the National Contracts Management Association, and the International Economics Honor Society. 

Kevin Forte
Operations Manager & FSO
Michael Segura
Technology Manager