Head of IT developments at Cetrel S.C (now Six Payment Services), where he contributed to the development of point-of-sale terminals for cards and designed with his teams the Luxembourg clearing system Lips-Net, now replaced by Target.
Co-author of the following academic publications:
CLOUD PROVIDERS VIABILITY: HOW TO ADDRESS IT FROM AN IT AND LEGAL PERSPECTIVE? (Cesare Bartolini, Donia El Kateb, Yves Le Traon, David Hagen (2015))
OPERATIONAL RISK MANAGEMENT IN FINANCIAL INSTITUTIONS: PROCESS ASSESSMENT IN CONCORDANCE WITH BASEL II (C. Bernard, D. Hagen, P.Maar, D. Reinard, B. Di Renzo, M. Hillairet, M. Picard, A. Rifaut, (2005))
Lifetime Career" award from ITOne, received in 2017 from the Luxembourg ICT community in recognition of its commitment to the national IT sector.