Jammeh previously played for FC Torpedo Moscow in the Russian First Division. He signed for Torpedo in early 2008, following the relegation of his previous side FC Tekstilshchik-Telekom Ivanovo to the Russian Second Division, and having previously spent two years in Tunisia with ES Zarzis. In September 2011, Jammeh sign for Kazma in Kuwaiti Premier League.
Jammeh is also a member and captain of the Gambia national football team with 32 caps.
Scores and results list Ethiopia's goal tally first.