The former Poland U21 international started his career with local side Polonia Warsaw and spent time on loan with Greek club Egaleo in 2006.
In 2007 he joined Portuguese top-flight side Braga on a free transfer and made his debut in a UEFA Cup tie against Werder Bremen the following February.
Time was spent on loan at fellow Primeira Liga side Vitoria in January 2009 before he moved to FC Porto in July 2010.
He made just one league appearance before being loaned to Dutch club Roda JC, where he made 25 Eredivisie appearances in 2011/12.
Kieszek signed for Vitoria that summer, where he was a regular for two seasons, and has since been first-choice keeper for Estoril and Spanish Segunda Division side Cordoba, before joining fellow second tier side Malaga in August 2018.