He currently plays for Young Boys U21, wearing the number 15 shirt. At the international level, he represents Haiti. He plays primarily as a Defender. His current market value is estimated at 25K €.

His most recent move was a from BSC Young Boys U19 to Young Boys U21 on 2024-07-01.

Throughout the FIFA World Cup qualification (CONCACAF) 2026, Keeto Thermoncy featured in 6 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.