Gears of War: Judgment, is now senior development director on the next Mass Effect game from BioWare, he announced in a tweet.
Wynn started working at Epic in August last year, but before that he was a lead producer at Microsoft for two years, minding the gears of that War game. Wynn also worked for BioWare owner EA as a development director for six years starting in September 2003, where he specialized in EA Sports franchises (according to his LinkedIn profile).
Not much is known about the next Mass Effect game, save that it's powered by Frostbite 3 and helmed by Executive Producer Casey Hudson.
Wynn follows a few recent departures from Epic Games, including Director of Production Rod Fergusson, who left to join Irrational Games; President Mike Capps; Design Director Cliff Bleszinski; and three people from Epic subsidiary People Can Fly, who formed The Astronauts.