Complex sentence: He has held Chief Technology Officer positions at Instructure, O.C. Tanner Co., a human resource consulting services company, iQor, a business process outsourcing (BPO) company, and The Church of Jesus Christ of Latter-day Saints.
Split into simpler sentences: He has held Chief Technology Officer positions at Instructure, O.C. Tanner Co., a human resource consulting services company and at iQor, a business process outsourcing (BPO) company. He held the Chief Information Officer position at The Church of Jesus Christ of Latter-day Saints.