Lachtman joined Twitter when the social network acquired Niche in February 2015.
He said in a tweet announcing his departure (embedded below) that Twitter director of global content partnerships Nick Millman will lead Niche globally, while head of content strategy Kristen Lachtman (his wife) will helm its U.S. operations.
— Darren Lachtman (@dlach5) July 14, 2017
Lachtman added that Niche has some 50,000 creators in its network, with seven offices across the globe.
Niche’s other co-founder, Rob Fishman, left the company last November.
Image courtesy of Darren Lachtman’s Twitter account.