Shaiju started his career as a sports commentator in 2012, covering the 2012 Celebrity Cricket League (CCL) season, which he covered for the next two seasons. He was chosen as the leading commentator in Malayalam for the inaugural season of the ISL. Ahead of the ICC Cricket World Cup 2015, Star Network decided to include Malayalam commentary and Shaiju was engaged as the leading commentator. In 2017, he became the first person to complete 200 matches as an ISL commentator.