|Date of birth||19 August 1983|
|Place of birth||Dosso, Niger|
|Height||1.91 m (6 ft 3 in)|
|–1998||Olympic FC de Niamey|
|1998–2001||Olympic FC de Niamey|
|2009||→ Rapid II Bucureşti (loan)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 15 November 2012.
‡ National team caps and goals correct as of 8 May 2013
Daouda began his career at Olympic FC de Niamey, and was first chosen for the youth national selection in 1996, then rising to the full national squad in 1998. In August 2002 he gained his first cap, and has been the starting goalkeeper with Niger ever since. Transitioning to goalkeeper for the full Olympic FC, Daouda's side was national league champion, then runners up in 1999. In 2001, Daouda joined rival Niamey club Sahel SC, and as their number one went on to win three national championships and two national cups. He moved to Cameroon club Cotonsport Garoua in 2006 has played in the 2007 CAF Champions League On the back of his success at Cotonsport, Daouda was chosen Niger's Best Player of the Year in 2008.
He remained starting keeper for the Niger national football team throughout their successful qualification for the 2012 African Cup of Nations, and the tournament itself, as well as for 2013 African Cup of Nations. 
- L'homme : Héroïque Daouda Kassali. Ateba Biwolé, Le Jour (Cameroon). 2012-01-25.
- Le gardien nigérien Daouda Kassali signe pour 3 ans avec le Rapid Bucarest. APANEWS 2009-02-05.
- "French Ligue 1 Scores, News, Stats, Fixtures and Tables - ESPN Soccernet". Espnsoccernet.fr. Retrieved 2012-08-13.
- Coton Sport : Daouda Kassaly est de retour