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Mark joined Interra Systems in 2012 and has more than 30 years of corporate financial and administrative experience. Prior to joining Interra Systems, Mark held several roles in the office of the CFO at Gilead Sciences and served as Vice President of Finance for the Telecommunications business unit at VeriSign. He began his career in public accounting in Chicago and continued it with a move to Silicon Valley. Mark entered the corporate world with senior finance roles at Apple, Tandem Computers and PeopleSoft. He has served in the CFO position in a number of both private and publically-held technology companies. Mark earned a B.S. in Accounting from the University of Notre Dame and is a member of AICPA.