Sasha Goldshtein is the CTO of Sela Group, a Microsoft Regional Director and MVP, Pluralsight and O’Reilly author, and international consultant and trainer. Sasha is the author of two books and multiple online courses, and a prolific blogger. He is also an active open source contributor to projects focused on system diagnostics, performance monitoring, and tracing—across multiple operating systems and runtimes. Sasha authored and delivered training courses on Linux performance optimization, event tracing, production debugging, mobile application development, and modern C++. Between his consulting engagements, Sasha speaks at international conferences world-wide.