At 27 years old, Zinedine Machach has this physical status:
Machach began his youth career with SC Air Bel, before moving to first AS Cannes and since Olympique Marseille. He then joined Toulouse in 2014. He made his Ligue 1 debut on 23 May 2015 against OGC Nice. He replaced Aleksandar Pešić after 58 minutes.
On 27 July 2016, Machach joined Olympique Marseille on a season-long loan deal with an option to buy.
On 21 July 2018, Machach joined to Serie B side Carpi on loan until 30 June 2019.
On 23 January 2019, Machach joined to Crotone on loan until 30 June 2019.
On 2 September 2019, he joined Cosenza on loan.
On 2 July 2022, Machach signed a two-year deal with Ionikos in Greece.