Warrier started his career as a tutor at the Government Sanskrit College, Tripunithura but moved to Sreemoolanagaram Sanskrit School and later to Brahmanandodayam Sanskrit School, Kalady. In 1942, he resigned from his job to participate in Quit India Movement and ran a newspaper, "Swathanthra Bharatham" while in hiding. Afterwards, he joined Govt High School Kodakara as a teacher and in 1948, joined Sree Kerala Varma College as its faculty. Subsequently, he had a short stint at Madras Christian College, too, before joining Mathrubhumi in 1952 as a member of its editorial board where he stayed until he was selected as the founder director of Kerala Bhasha Institute in 1968. After his superannuation from the institute in 1975, he rejoined Mathrubhumi as the chief editor; he also worked with "Kunkumam" weekly for a short while.