Career
He started out playing football as a centre forward in his youth. Isa has previously played for South.League clubs Woodlands Wellington, Young Lions and Home United. On 27 June 2015 Isa moved from LionsXII to Tampines Rovers, in the process teaming up with his former coach V. Sundramoorthy.
He made his debut for the Singapore on 11 October 2005 against Cambodia.