SIS, LLC is a Microsoft Gold Partner with a 25-year track record, announced the hiring of David Bishop as Chief Technology Officer. David brings with him a highly distinguished career spanning 30 years. David’s career included a 15-year tenure at Microsoft, as well as senior positions at Barclays and 5 years as a Senior Vice President – R&D at Hitachi Solutions where he was responsible for all R&D activities including industry IP development.