He was educated in several places including Lyon, France, and by 1971 was a French citizen. He also worked with French poet Philippe Soupault. Joachim's two volumes of poetry are Un nègre raconte in 1954 and Anti-grâce in 1967. He was political editor for France Noir, an editor-in-chief for Bingo, and manager for the African Décennie 2. He is also strongly associated with David Diop. In 2006 he was among the winners of the W. E. B. Du Bois Institute "W. E. B. Du Bois medal".