Previously he was a Senior Research Scientist at T-Labs / TU Berlin. He received an Informatics Diploma from the University of Bucharest, Faculty of Mathematics and Computer Science, and a Ph.D. degree in Computer Science from the University of Virginia. He is interested in developing stochastic models and techniques to better understand and engineer communication networks, computer systems, and the smart grid. On the practical side, he is interested in resource allocation and randomized algorithms for large systems.