Sebastian is a software engineer and architect, particularly interested in healthcare data standardisation & EHR applications. He co-founded CODE24 in 2011, to build an openEHR CDR for the Dutch market, applying skills and knowledge learned while working for five years on other openEHR solutions in the Netherlands. Since 2015 he is also a member and since 2020 co-chair of the openEHR Specification Editorial Committee. In 2019 Sebastian also founded openEHR Netherlands Affiliate (openEHR NL) together with Wouter Zanen and Marcel Swennenhuis.