After being appointed President by the founding Board, he led the company from its beginnings as two-person organization (with Chuck Reif, head of technology and fellow co-founder) and two license holders, to a company serving over 700 arts and cultural organizations with over 200 team members. Jack grew Tessitura Network into a company with multiple products and services, continual technology and functionality advancements, a global footprint on three continents and across ten countries, and as strong a presence in the museum and cultural attraction sector as the company initially built in the performing arts sector. 

Jack has served in management and leadership roles in both the for-profit and non-profit worlds. Previously, he was CEO and President of an internet-based ticketing and box office software company, Chief Financial and Strategic Officer for www.hotels.com during the period they went public and has also served in CEO, and senior-level management, marketing and strategic officer positions for large publicly-traded companies in various industries and market sectors. Responsibilities included dozens of mergers and acquisitions while with public companies, start-ups, growth initiatives, product development, strategic alliance formations, and management of numerous businesses. 

Jack has also served on non-profit boards and co-chaired a successful technology task force for an educational institution that led to nationally recognized design and implementation of the educational use of technology. Jack holds an MBA with distinction from the Wharton School at the University of Pennsylvania, a BBA summa cum laude from the University of Texas and is also a CPA.