He currently plays for Tahiti United FC, wearing the number 8 shirt. At the international level, he represents Tahiti. He plays primarily as a Midfield.

Across 3 appearances in the FIFA World Cup qualification (OFC) 2026, Roonui John Tehau registered 0 goals and 0 assists, while completing 0 key passes out of 0 total passes with a passing accuracy of -.