He currently plays for Rotherham United, wearing the number 11 shirt. At the international level, he represents Curacao. He plays primarily as a Midfield. He stands at 180cm tall and weighs 67kg. His preferred foot is Left. His current market value is estimated at 700K €.

His most recent move was a Free from Beerschot Wilrijk to Rotherham United on 2025-07-29.

Across 8 appearances in the FIFA World Cup qualification (CONCACAF) 2026, Ar'jany Martha registered 1 goals and 0 assists, while completing 1 key passes out of 29 total passes with a passing accuracy of 2.5.