Christos Ballis received his Diploma degree from the School of Rural, Surveying and Geoinformatics Engineering of the National Technical University of Athens (NTUA) in 2015 and his MSc in Transport (Distinction) from Imperial College London in 2017.

He started his career as a junior researcher, mainly contributing to European research projects, and later participated in the development of transport master plans as a GIS specialist. Since then, he has contributed to several UK and international projects as an integral member of the transport modelling team of Jacobs in London.

In 2023, Christos joined the Intelligent Transport Systems (ITS) team of the I-SENSE research group of ICCS.