Microsoft's GitHub chief is leaving as competition ramps up in AI coding market

GitHub CEO Thomas Dohmke speaks at the VivaTech technology startup and innovation fair in Paris on June 12, 2025.Microsoft's GitHub unit, which is facing a torrent of competition from AI-powered coding tools, is losing its leader, and the company isn't immediately naming a successor.Thomas Dohmke, who has been CEO of GitHub since 2021, joined Microsoft in 2015 through the acquisition of his prior startup HockeyApp. Microsoft bought GitHub for $7.5 billion in 2018, and Dohmke moved over to that business as p ...