Until 2018, he combined his professorship with a senior consultant position at PBLQ, a Dutch consultancy organization for information management in the public sector. He advised on IT and cybersecurity governance and performed audits, second opinions and cybersecurity assessments.
Before that, he worked in the quality assurance at Fokker Space and was associate professor at the Information Systems Department of Delft University of Technology. He specialized in cybersecurity, cybersecurity governance and human failure.