Jan 2017 - Mar 2017Working on Solidity smart contracts for a proof of concept TreasuryBanking project commissioned by the Dutch Ministry of Finance.Jul 2011 - Dec 2016As iOS developer in a Scrum team working on the ING Bankieren app.Jan 2009 - Jul 2011As Java developer working on back-end applications.Jul 2003 - Jan 2009As web developer working on the rvs.nl, postbank.nl and postbankzakelijk.nl websites.Mar 2003 - Jul 2003Helping out to reduce the number of software applications within the ING Group and investigate the use of the Struts framework within Postbank.Jul 2002 - Mar 2003As Java developer working on a Postbank customer service web application. Jan 2002 - Jul 2002Support setting up a test environment for the m-bankieren application. M-bankieren is banking with a Siemens M35i mobile (WAP) which were issued to Postbank customers in 2001.

Jan 2001 - Jun 2001As J2EE developer working on the smartbunkers.com website. It is B2B marketplace for bunker fuel for ships. Technologies used: Enterprise Java Beans (EJB), Java Server Pages (JSP), Servlets and JDBC, VisualCafe EE, WebLogic and Windows 2000.Jan 2000 - Jan 2001As web developer working on building 5 different websites for the International Masters Publishers company and worked on the content management system for these websites. Technologies used: StoryServer, Sybase, Apache and Solaris. Jun 1999 - Jan 2000As tester creating test scripts and performing user acceptance tests for the nissan.nl and nissan-primera.com websites. Registring multiple domain names for Nissan websites. Creating WebTrends reports for website analysis and requesting and installing SSL keys.

As software engineer fixing software defects in the Triton 3.1 and Baan IV Manufacturing package.

Sep 1994 – Sep 1997As software configuration manager tracking and controlling changes in the European Robot Arm Software Simulator. The Software Simulator is a software program which is used to verify the European Robot Arm for the International Space Station.Jan 1992 – Aug 1994As thermal engineer setting up mathematical computer models for the SILEX and CLUSTER projects using the Thermica and ESATAN software applications. These tools are mainly used in the Aeronautical industry.