Robeiri was born in Cayenne, French Guiana. He began fencing at age 8 at the Éclaireuses et Éclaireurs de France, an interreligious scouting association. He first practiced foil, the traditional learning weapon, before turning to épée.
Robeiri, who hails from Cayenne, French Guiana, started fencing at age eight with the Éclaireuses et Éclaireurs de France, a scouting organization that transcends religious boundaries. Initially, he trained with the foil, the traditional starting weapon, before transitioning to épée.