On 22 February 2016, FCSB signed Enache on a five-year deal for an undisclosed transfer fee. He was handed the number 44 shirt and played eleven games in the remainder of the 2015–16 Liga I. He scored his first goal for the "Roș-albaștrii" in a 1–1 draw with Pandurii Târgu Jiu, on 1 May that year.