Kay was the first Thai director to make a short film for the Cornetto Cupidity project. The landmark campaign, which consists of a series of short but sweet love stories, won a Cannes Lions award for Branded Content and Entertainment. Since then, she has gone on to direct spots for brands such as Nike, Samsung, Colgate, Chevrolet and Honda. Her short films have garnered awards in Los Angeles and Thailand and have been selected for numerous festivals around the world. She is also a screenwriter on Netflix's first Thai language original series The Stranded.