KPN 2022
Software development and operations in Python for Digital Engine.

Koninklijke bibliotheek 2021-2022
Software development with Java/Spring for Open Zoek Platform

Datapunt, Gemeente Amsterdam 2017 - …
Development of data APIs with Python, Django, Postgres and Docker…

Bart Heupers Software 2017 – …
Data analysis with deep-learning, Tensorflow…

Booking.com 2011 – 2017
Android app and backend development. IT finance, online payments, invoices, SAP import, direct debit etc. Java, Perl, GIT, MySQL, Hadoop, Spark …

SARA 2004 – 2011
Software development for scientific projects. FlySafe, Grid-computing and storage. BioInformatics. Perl, Java, Python , C++

Freelance software developer 1997- 2004
For HP ServiceDesk, SNT Connect Services, Cambridge Technology Partners, A2 Antwoordservice, IBM, Chipper, MEOB, EDS and others

Elsevier Science 1996

AND Identification 1993 – 1995

BSO Artificial Intelligence 1992

Sentient Machine Research 1991

Chanovski AudioVisual Productions 1988 – 1990

PTT Telematica Laboratorium 1988