He currently plays for Wexford, wearing the number 10 shirt. At the international level, he represents Ireland U17. He plays primarily as a Defender. His preferred foot is Right.

His most recent move was a from Wexford FC Academy to Wexford on 2022-12-31.

Throughout the Ireland First Division 2026, kaylem harnett featured in 3 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.