After unsuccessfully emerging through Paris Saint-Germain FC's youth system – only appeared for the reserves – he played in Germany with Bayer Leverkusen II and KFC Uerdingen, both in the lower leagues; subsequently, he spent one season in the Swiss Challenge League with FC Vaduz.
Peiser made his top flight debut in the 2003–04 campaign, only missing four Liga I games as FC Rapid București finished in third position.
He returned to his country for the following four years, spending two apiece with Troyes AC and FC Gueugnon and being part of the former team's Ligue 1 roster in 2005–06 (no league appearances).
[4] On 9 July 2014, Peiser signed with his first non-European club, joining Ottawa Fury FC of the North American Soccer League.
[7] He won the Soccer Bowl in his first season, keeping a clean sheet in the decisive match against New York Cosmos (2–0 at the Kezar Stadium).