[1] He won a silver medal for the men's singles at the 2007 All-Africa Games in Algiers, Algeria, losing out to the host nation's Nabil Lasmari.

[3] Mambwe competed at the 2008 Summer Olympics in Beijing, China, after accepting a tripartite commission invitation into the men's singles by the International Badminton Federation.

In the men's singles, he was not able to redeem himself and improve his performance from the previous games, as he lost once again in the first round to Martyn Lewis of Wales, with a two-set score of 19–21 and 16–21.

[7] Few hours later, he played again with Olga Siamupangila in the mixed doubles, where they beat the Jamaican pair, Garron Palmer and Alya Lewis, with a three-set score of 14–21, 21–17, and 21–17.

[8] He and his partner fought against the Singaporean pair Chayut Triyachart and Yao Lei in the second round, with a score of 21–11, but they eventually retired before the second set, when Mambwe had a pulled hamstring muscle during the game.