Gomis started his professional career with
ALM Évreux in 1996, playing there for five seasons. He spent the 2001–02 season with
SLUC Nancy, winning the
Korać Cup in
its final edition. Between 2002 and 2010, Gomis played in Spain for
Breogán,
Valladolid and
Unicaja Málaga. For the 2010–11 season he signed with
Spirou Charleroi of Belgium. From 2011 to 2014 he played with
Limoges CSP, winning the French championship in the
2013–14 season. In June 2014, he signed with
JSF Nanterre for the 2014–15 season. On 27 August 2015 he retired from professional basketball. ==National team career==