Before joining Birzeit in 2009, he was a Marie Curie Fellow at the University of Cyprus (2007-2009), and was a senior Research Scientist at Vrije Universiteit Brussel (1999-2007), where he completed his Masters (2000) and PhD (early 2005). Prof. Jarrar published +75 articles and refereed reports in the areas of Ontology Engineering, Lexical Semantics, Semantic Web, and Databases. He is, a full member of the IFIP2.6 on Database Semantics, the IFIP2.12 on Web Semantics, the IEEE Learning Standards Committee, and the CEN/ISSS ICT Skills, Prof. Jarrar is also the founder of both Sina Institute For Knowledge Engineering And Arabic Technologies, and the Palestinian EGovernment Academy , at Birzeit University.