Guermouche signed his first professional contract with
Montpellier on 10 June 2021. He made his professional debut with Montpellier in a 2-0
Ligue 1 win over
Saint-Étienne on 15 January 2022. On 18 July 2022, Guermouche was loaned to
Châteauroux, a French third-tier
Championnat National club. He returned to Montpellier in January 2023. Guermouche left Montpellier by mutual consent on 30 January 2024. On 1 February 2024, Guermouche signed with
Iraklis in Greece. == International career ==