US Quevilly
Oualembo began his career with Paris SG. Then he joined US Quevilly for the 2006–07 season. In January 2007 he moved to Levante UD and left the club in May 2008. On 30 July 2009 he joined Monza. On January 22, 2012 he signed with Chernomorets Burgas. He was released in early June 2012. On October 15, 2012 he signed with Lechia Gdańsk.