Angers Born in
Bondy,
Seine-Saint-Denis, Moussi began his career at
Angers SCO. He spent six seasons, where he made 120 appearances, scoring two goals. On 30 June 2008, it was announced that Moussi had travelled to the
City Ground to join
Nottingham Forest.
Nottingham Forest After joining Forest in the summer, Moussi made a confident start to his career in England, becoming a regular in the Forest midfield. However, due to injury, he missed a large portion of his debut English season. After recovering from an injury at the start of the 2009–10 season, Moussi scored his first goal for Nottingham Forest three minutes into added time in the 1–0 win over
Barnsley at the City Ground on Tuesday 20 October. His over-enthusiastic celebration earned him a second yellow card, resulting in him being sent off. On 19 July 2011, despite reports linking Moussi with moves to
Everton,
Wigan Athletic, On 14 November 2013, Moussi signed on loan for
Millwall until 2 January 2014. On 28 May 2014, it was announced Moussi would not be having his contract renewed.
Birmingham City In November 2014, Moussi signed a two-month deal with
Football League Championship club
Birmingham City. Following his signing, he pledged to donate all his salary to four charities: the Birmingham City Disabled Supporters Club, Stop
Ebola, a church in Paris () and the TEV Soma Charity, which was raising money to help victims of the
Soma mine disaster in Turkey. He made his debut as a second-half substitute in the Championship match at home to
Reading on 13 December, with Birmingham already 6–1 ahead. He had little opportunity to force himself into a stable first team, and his contract was not extended, his only other league appearance coming at his former employers Nottingham Forest, where he received a good reception from the Forest fans.
HJK On the transfer deadline day in February 2015, Moussi signed for Finnish club
HJK Helsinki. ==Career statistics==