Eric Sim, 54, spent over 20 years in banking. The former UBS managing director now works as a professional speaker and executive coach.Eric SimEric Sim spent over 20 years in banking, working in Singapore, London, Shanghai, and Hong Kong.The engineering major says he had no idea what banking was when he graduated in 1994.Sim left banking in 2017 and is now a published author, professional speaker, and career coach.This as-told-to essay is based on a conversation with Eric Sim, 54, a former banker turned professional speaker and executive coach.