Between 2004 and 2006 Sarmov played for Naftex Burgas, making 43 league appearances and scoring 2 goals.
During 2009/2010 season, Levski qualified for UEFA Europa League group stage.
In 2009/2010 season, Levski achieved qualifying for UEFA Europa League, becoming 3rd in the final ranking.
[3] In late April 2019, Sarmov was unveiled as the first signing of German club Chemnitzer FC for the 2019/2020 season.
[4] Sarmov debuted for Bulgaria national team on 26 March 2008 in a 2–1 win against Finland, appearing as a late substitute for Dimitar Berbatov.