• Professor of Empirical Legal Science, Faculty of Law, Economics, and Governance, Utrecht University (2013-present)
• Professor of Social Psychology Including the Social Psychology of Organizations, Faculty of Social and Behavioural Sciences, Utrecht University (2001-present)
• Associate Professor, Department of Social Psychology, Vrije Universiteit Amsterdam (2000-2001)
• Assistant Professor, Department of Social Psychology, Vrije Universiteit Amsterdam (2000)
• Assistant Professor, Department of Social and Organizational Psychology, Leiden University (1997-2000)
• Postdoc on grant from the Royal Netherlands Academy of Arts and Sciences (Akademie-onderzoeker, KNAW)(1997-2001)
• Postdoc on grant from the American Bar Foundation, Chicago, USA at Department of Social and Organizational Psychology, Leiden University (1996-1997)
• Ph.D. student (Assistent in Opleiding), Department of Social and Organizational Psychology, Leiden University (1992-1996)
• Conscripted Officer with Academic Background (Reserve-Officier Academisch Gevormd), Department of Behavioral Sciences, Directorate of Personnel, Royal Dutch Army (1990-1991)
• Research Assistant, Department of Social and Organizational Psychology, Leiden University (1990)

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