He has been affiliated with Teesside University and Liverpool Hope University in the UK, and University of Macedonia and University of Thessaly in Greece. Vasilis has been teaching and researching for 15 years in higher education and has additional teaching experience in primary and secondary education for more than 10 years. He has also participated in numerous funded international research projects (most funded by European Commission) in the field of early childhood education, and his main research interests are educational evaluation and early childhood education evaluation.