Unamba played college football for Southern Arkansas University.

Unamba signed with the St. Louis Rams as an undrafted free agent on May 13, 2013.

On December 19, 2016, Unamba signed with the Salt Lake Screaming Eagles.

[4] He played for one season with the Redblacks and became a free agent upon the expiry of his contract on February 8, 2022.

This biographical article relating to a Canadian football defensive back is a stub.