He spent most of his early coaching days as a coach with the Football Association of Malaysia in Wisma FAM. He first worked as a state coach with the Negri Sembilan team, and later joined Penang FA and TMFC respectively. In 2007, he suddenly resigned from TMFC to coach an Indonesian team, Persipura Jayapura. He returned to Malaysian football in 2008, joining Perlis FA. He later left Perlis and joined Terengganu FA for the 2010/11 season. He was the head coach of Selangor FA from 2012 until his resignation in 2013.
Felda
Irfan was unveiled as new coach of Felda United FC on November 2013. With Felda, he guided them to the 2014 Malaysia FA Cup Final, where they lost 2-1 to Pahang, conceding goals at the last minute after leading for the long period of the game. Felda continued their revitalized season by performing well in that year's Malaysia Cup with a win against a strong Johor Darul Ta'zim F.C. team at rainy muddy pitch of MPS Stadium by 4-3, but lost in the second leg of the semi final. In the domestic campaign they finished second which saw only PDRM managed to prevented them from winning the Malaysia second tier division. In 2015, Felda finished the season in 5th placed and make it to semi final of Malaysia cup. In 2016, Felda ended the season as runners-up, their best position ever since inception. But Irfan left the team at the end of the season to take the head coach position of Terengganu for the second time.
Terengganu
Irfan was tasked to bring back Terengganu to their glory days after number of coached comes in comes out end up with poor tactical, bad result cost the team relegation to premier league. Their best achievement was when Irfan was their head coach by winning the 2011 FA cup, super league & Malaysia cup runners up in 1 single season. On 20 October 2018, he managed to bring Terengganu advance to the 2018 Malaysia Cup final when Terengganu beaten heavily favourite Johor Darul Ta'zim with 3-2 score aggregate but loss to Perak in penalty shootout.
Achievement
As a Coach
Penang FA
;FA Cup Malaysia ;Malaysia Charity Shield ;Malaysia Super League
Perlis FA
;Malaysia Charity Shield
Terengganu FA
;FA Cup Malaysia ;Malaysia Cup ;;Malaysia Super League ;;Malaysia Super League
Felda United F.C.
;Malaysia Premier League ;FA Cup Malaysia ;Malaysia Super League
