Born in Stara Zagora, the son of professional wrestler Petko Sirakov, Sirakov started playing as a striker, playing three games for PFC Levski Sofia's first team in 1980, having joined the club's youth system at the age of 13.
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From 1986–88, with the club now renamed Vitosha, he helped to another championship, as well as leading the goal charts in both seasons, scoring 64 goals combined – 36 in just 30 matches in the first year, although the championship was eventually lost to PFC CSKA Sofia, by three points.
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In his second stint at Levski, Sirakov began appearing regularly, for example scoring 15 goals in only 19 matches in 1984–85 A PFG, as the capital team won the league.
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Sirakov closed his career at the age of 36, after three years with another team in the capital, PFC Slavia Sofia, winning a double in his last season in professional football, although his league presence was testimonial (one game).
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Part of the Bulgarian team at the 1994 FIFA World Cup as it finished fourth, he was one of the most important footballers in the country in the 1980s/1990s, being a legend at Levski Sofia, a club he represented in four different spells.