 From August 2004 he holds a full-professorship (Applied Probability and Queueing Theory) at the University of Amsterdam (Korteweg-de Vries Institute).From September 2004 he is advisor of the "Queueing and Performance Analysis" theme at EURANDOM, Eindhoven.He is author of the book "Large deviations for Gaussian queues", and is associate editor of the journals Stochastic Models and Queuing Systems.