Erwan Tonnerre is a Network Site Reliability Engineer at S3NS, focusing on cloud-oriented datacenter automation utilizing Infrastructure as Code (IAC) and System Operations Technology (SOT) principles. Prior experience includes serving as a LAN Network and NetOps Engineer at Dassault Systèmes, where deployment involved IAAC with Python, Netbox, GIT, and Ansible on Arista Networks devices. Erwan also worked as an IP Network Security Engineer at Bouygues Telecom, providing Layer 3 IP Backbone and DataCenter support and developing Python solutions. Earlier, Erwan held the position of System and Network Administrator at Académie de Rennes, managing infrastructure modernization projects and providing technical support. Erwan holds an engineer's degree in Network Engineering from Télécom SudParis and completed studies at IUT de Saint-Malo.