Jan qualified as an accountant with Deloitte and led their international practice in the Netherlands. He subsequently built a distinguished career in senior finance roles within the minerals and chemicals industry based in Europe and the USA. During his time at Shell plc spin-out Hexion Jan was Global FinanceDirector and subsequently CFO of several divisions, comprising turnover of over USD 4bn and sales in 4 continents.  

At Hexion Jan was jointly responsible for investor relations work in relation to USD 3bn NYSE listed bonds, there financing of multi-layered debt facilities as well as reporting work up to ultimate owner Apollo Global Management. At the end of his tenure with Hexion, Jan became CFO designate of a USD 2bn spin-out. 

Most recently Jan was Head of Finance at ASML, the world leading producer of machines for the semi conductor industry with a market capitalisation of EUR 335bn.