Guillaume Fillon is a Staff Software Engineer based in Bordeaux with 12 years of experience building cloud-native distributed systems and Kubernetes platforms. He combines startup grit as the ex-CTO and co-founder of a French neobank with enterprise SRE experience at Wercker and Oracle, and has been shaping Auth0’s next-gen multi-cloud platform since 2018. His technical focus spans Go, gRPC, Terraform, Kafka, ScyllaDB and public clouds (AWS, GCP, OCI), with a track record of designing secure, reliable and scalable architectures. Guillaume’s background includes hands-on platform creation—from bootstrapping a Kubernetes platform at Auth0 to migrating infrastructure between clouds—reflecting both deep systems knowledge and operational rigor. He studied at Epitech and spent semesters in California, giving him a mix of French engineering training and international exposure. Colleagues appreciate that he pairs pragmatic engineering with an eye for observability and robust SRE processes.
12 years of coding experience
7 years of employment as a software developer
Epitech
Baccalauréat Scientifique, Specialization in Physics and Chemistry, Baccalauréat Scientifique, Specialization in Physics and Chemistry at Lycée Frédéric Mistral - Avignon, France
Computer Science, CGPA: 3.00, Computer Science, CGPA: 3.00 at California State University-Long Beach
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Guillaume Fillon - Staff Software Engineer at Auth0 by Okta