, and the spec lead of JSR-241, the Java Specification Request that standardizes the Groovy dynamic language.
He initiated the creation of the Grails
web application framework, and founded the Gaelyk
project, a lightweight toolkit for developing applications in Groovy for Google App Engine
He is also a frequent conference speaker presenting Groovy, Grails, Gaelyk, Domain-Specific Languages at JavaOne, GR8Conf, SpringOne2GX, QCon, and Devoxx, among others.
Guillaume also co-authored Groovy in Action along with Dierk König and Paul King, two famous Groovy committers.
Before founding G2One, which was acquired by SpringSource in late 2008, and taking the role of VP Technology, Guillaume worked for OCTO Technology, a consultancy focusing on architecture and agile methodologies. While at OCTO, Guillaume developed new offerings around Groovy and Grails for its customers.