Specialized in model driven engineering and eclipse development, he is working with various modeling technologies such as EMF, GEF, GMF, UML2, OCL, ATL ﻿since 2006. He actively participates in TOPCASED evolution and enhancement as the responsible for sub-projects Topcased SAM (SART-like modeling tools) and OCL Tools (TOPCASED Validation Framework). Apart modeling engines, Sebastien is also fond of combustion engines.