He began his international career for the under-20 team during qualification for the 2011 CONCACAF U-20 Championship, where Bobb made three appearances playing as a winger in wins over United States Virgin Islands and Grenada; and a loss to Jamaica. In the second qualification round, Bobb scored his first goal for Guyana in the 81st minute against Netherlands Antilles, which resulted in the "Golden Jaguars" lone win in the group on 23 January 2011. Prior to elimination, Bobb made six consecutive starts for Guyana during the team's qualification attempt.