Jum Rubin is a theatre director, acting coach, and teacher. She is the founder of the company, Theatre Etcetera. She holds an MA with Distinction in Theatre Directing from Middlesex University, UK Her work takes her across the globe, including Thailand, Romania, the UK, Canada, Japan, China, Chile, and Cambodia. She has taught at East15 Acting School, Drama Studio London, Phare (a performing arts school in Cambodia), Srinakharinwirot University, and Finale Academy in Thailand.

In 2024, her production of Romeo and Juliet was invited to the International Shakespeare Festival in Craiova, Romania. She also led the renowned Living History Project at East15 in June 2023. She worked on a devised performance based on the novel Lord of the Flies by William Golding at The National University of Theatre and Film (UNATC) in Bucharest, Romania. This show ran successfully for one year and won the Production of the Year award in 2021. Jum has conducted workshops in various countries, including Intercultural Devising at New Earth Academy in the UK, a Drama Festival for teenagers in Romania, and Teacher Training with drama techniques in Shanghai, China. Additionally, she served as an assistant director of "Agamemnon" and as a dialect and culture coach for "The King and I" at the Stratford Festival in Canada.

Jum has contributed to the development of theatre and drama education globally. She was the head of the drama department at a school in London. Her students successfully went on to study at top universities, including Rada, Guildhall, East15, Leeds University, and Goldsmiths. She is a Fellow of the Royal Society of Art (FRSA).