Career
Affendy was the team captain of Mississippi ABDB, the football team of the Royal Brunei Armed Forces. He previously had a two-year stint with DPMM Football Club, at that time playing in the Malaysia Premier League. Affendy made his debut for the national team in the 2008 AFC Challenge Cup qualification, losing 0-1 to the Philippines on 13 May.
He was ever-present in the 2012 AFF Suzuki Cup qualifying, as well as substitute appearances in both legs of the 2018 World Cup qualifiers against Chinese Taipei in March 2015.