 On July 29, 2011, Lemmouchia signed a one-year contract with USM Alger.He made 27 appearances, scoring 1 goal, helping the club to a third-place finish in the 2011–12 Algerian Ligue Professionnelle 1 and a spot in the 2013 CAF Confederation Cup.On August 13, 2012, Lemmouchia traveled to Tunis to negotiate a contract with Tunisian side Club Africain.