[3] He made his senior debut for Nîmes Olympique in Championnat National on 18 December 2004, as a late substitute in a 0–0 away draw at Valenciennes.

[5] After two seasons with the club, he signed for US Orléans, then in Championnat de France Amateur, during the summer of 2006, in order to get more playing time and progress his career.

[12] The loan was terminated early in January 2013, as Douniama signed a two-and-a-half-year contract to return to Guingamp,[13] where he contributed to the club's promotion to Ligue 1.

During his two years in the top division with Guingamp, Douniama experienced winning the 2014 Coupe de France Final (as an unused substitute) and playing in the 2014–15 UEFA Europa League.

[14] By January 2017, Douniama was back in France, where he signed a contract until the end of the season with Championnat National side AS Lyon-Duchère.