Kok began playing youth football with Tomblaine before continuing his youth development at AS Nancy Lorraine, Jarville JF, US Vandoeuvre, FC Toul and Nancy Olympic. Whilst at high school, his team won the French championships and they went on to represent France in the Schools World Cup in Chile. In 2012, he signed a professional contract with Phnom Penh Crown. In 2017, he became the first defender to score a hat-trick in the Cambodian League, after netting three times against EDCFC.[2] He is currently serving as vice-captain of the club behind Orn Chanpolin. In 2022, he joined Malaysian Super League side Sarawak United on a season-long loan.[3]