Dong qualified as a PGA Professional in the UK in 2008, having grown up in Surrey, England. Dong was originally born in South Korea and moved to the UK at the age of 12, just one year later he picked up his first golf club. He played in south region PGA events and won a couple of tournaments in addition to finishing in the top five on several other occasions.
Dong is passionate about golf and teaching the game to others. He joined Dubai Golf in 2012 and coaches at both Emirates Golf Club and Dubai Creek Golf & Yacht Club, since joining he has been very busy with teaching Korean members and guests as he speaks fluent Korean.
In terms of teaching style, Dong's philosophy is to keep things as simple as possible, working through problems that golfers are experiencing with their game and then helping them to work out the resolution; this approach encourages the golfer to work out problems and fix issues even when he is not physically there.