Sibiraj is an actor, working in the Tamil film industry. He is the son of Tamil film actor Sathyaraj.

Sibiraj started his acting career with the 2003 film Student Number 1, which was a box office failure. In his next four films, Jore, Mannin Maindhan, Vetrivel Sakthivel and Kovai Brothers, he acted with his father, Sathyaraj, who also produced Sibi's following project, Lee, directed by Prabhu Solomon, where he played the role of a football player. In his early years, several films he was announced to be part of, such as Perumal Swamy, Pattasu and Mamu, were shelved midway.