Florent Kaouachi made his professional debut against Emmanuel Ulrich at Muay Thai Combat Mania on November 15, 2013, and won the fight by unanimous decision.
Kaouachi was next scheduled to face Eren Kara at Rond Kok Batay 6 on October 31, 2015, whom he beat by a second-round technical knockout.
Kaouachi was scheduled to fight Goye Mohaman for the ISKA Intercontinental Super Cruiserweight Title at K1 Event 9 on November 19, 2016.
[8] Kaouachi participated in a four man tournament, held at K1 Event 10 on February 11, 2017, which was organized to crown the ISKA European Super Cruiserweight K-1 champion.
[10] Kaouachi fought Ismael El Brouzini for the ISKA World Cruiserweight K-1 title at K1 Event VIP 3 on April 29, 2017.
[12] Kaouachi fought outside of France for the first time in his next fight, being scheduled to face Pavel Voronin at KOK 53 on December 9, 2017, in Chișinău, Moldova.
[13] Kaouachi was scheduled to fight Cristian Ristea for the vacant ISKA World Super Cruiserweight K-1 championship at K1 Event 11 on February 24, 2018.
[26] After suffering his second loss under the Glory banner, Kaouachi was expected to face Mimoun Jazouli at K-1 Event Gold Edition on July 2, 2022.