In the summer of 2016, when Modeste also retired as an active footballer, he was hired as an assistant coach for Entente SSG under head coach Vincent Bordot.[2] In the 2017-18 season, Modeste also became an assistant coach at Noisy-le-Grand FC under Moussa Sidibé, alongside his assistant coaching position at Entente SSG. In addition to this, he was in the same, Modeste was also coaching at Noisy-le-Grand's academy (from under-6s to under-15s).[3]
Modeste followed ESSG manager Vincent Bordot to Red Star in the summer of 2019, keeping an assistant manager role.[5] The duo left the club on 13 September 2021.[6]
Return to Entente SSG
On 31 May 2022, Entente SSG confirmed that Modeste was the club's new head coach from the upcoming 2022–23 season.[7] Ahead of the 2023–24 season, Modeste extended his deal with Entente.[8]