Her break-out film role was as the lead actress in Monrak Transistor, a 2001 comedy-drama film by Pen-Ek Ratanaruang. She was named Best Actress at the Thailand National Film Association Awards for her role. She then co-starred in the 2003 psychological thriller, One Night Husband.

Other film roles include a cameo appearance in The Adventures of Iron Pussy, co-directed by Apichatpong Weerasethakul, and in the Thai independent short film, Bicycles & Radios. She has also acted in numerous lakorns (Thai soap operas).

Since 2003, Siriyakorn has embarked on a career in business, producing her own lifestyle variety TV show ‘Baanoom’ (บ้านอุ้ม), creating her own line of kitchen utensils and publishing a self-titled lifestyle magazine and books, Oom.

She is a graduate of Chulalongkorn University, Faculty of Communication Arts