He currently works as an assistant coach in Switzerland with Servette U21.

He was part of the 2005–06, 2006–07 and 2008–09 Swiss Championship-winning team FC Zürich.

He began his professional career in his home country of France in 2002 and the following season he moved to Switzerland, first to play for Etoile Carouge in 2003–04 then between 2004 and 2006 he played for La Chaux-de-Fonds.

Alphonse joined Ligue 1 side Stade Brestois 29 on a 2+1⁄2-year deal in January 2012.

This biographical article related to Guadeloupean association football is a stub.