Our Team

Mark Sestak, M.C.S.

Entrepreneur, Chief Executive Officer and Chief Technical Officer of various global technology companies

CLARITY CO-FOUNDER

Mark Sestak has extensive business and strategic leadership, deep technical background and significant operational experience building businesses and complex software systems. He was Director of Engineering at Mitel Corporation before spending more than ten years in program and business management at Microsoft Corp leading worldwide teams. Subsequently, he has been an Entrepreneur and CEO or CTO for fifteen years, working in numerous hi-tech businesses, along the way selling both a company and a business. Mark has an undergraduate and master’s degree in Computer Science from University of Ottawa.