Sebastien is the head of Online Services at WhenFresh, a leading data supermarket for residential property data, where he builds graph APIs and lots of cool things.

He is an international conference speaker and trainer, has been a ReST advocate for 16 years, and has maintained the first resource-oriented framework on .net, OpenRasta, since 2007. Sebastien also likes going to the beach in his native Monaco, and driving around in his electric car.