Compass taps AI expert to be new chief technology officer Nine months after Compass' chief technology officer left to start his own company, the SoftBank-backed brokerage has picked a new one. Before landing at Compass, Joseph Sirosh was the CTO of artificial intelligence at Microsoft and the vice president of Amazon's global inventory platform, where he helped build up the the e-commerce company's machine learning applications. Sirosh and Compass' engineering team will develop AI-powered products [...]