Writer and producer, John Winston Rainey started off his career in 2011 with the horror-thriller, Totem & Taboo. He served as a writer on the movie. In 2014 Rainey was an associate producer on the Mexican biopic, Gloria. In 2018 Rainey made his Hindi debut as a writer with the crime-drama, Union Leader. The movie is directed by Sanjay Patel and has Rahul Bhat, Tillotama Shome and Samvedna Suwalka in pivotal roles.