He currently plays for Solomon Kings FC, wearing the number 2 shirt. At the international level, he represents Solomon Islands. He plays primarily as a Defender.

His most recent move was a from Central Coast FC to Solomon Kings FC on 2026-01-06.

Throughout the FIFA World Cup qualification (OFC) 2026, David Supa featured in 2 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.