In 2003 Sjoerd started his trading career at precisely the moment when trading evolved from the pit to screens. In 2005 Sjoerd joined Flow Traders. In the years since Flow's inception, Sjoerd has been a key contributor to the company's trading strategy, set-up and operations, acting as Head of Trading since 2009. In 2010, Sjoerd was named COO due to his keen insight into the necessary inter-relationship between technology and trading. In this capacity he has been responsible for both Trading and Technology operations. Since the beginning of 2014 the former CFO of Flow Traders and Sjoerd were appointed co-CEO of the Flow Traders group. Flow Traders is a listed company on Euronext Amsterdam as of July 9th 2015.