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Guillaume Waignier is an experienced IT professional with a focus on software architecture, auditing, and training, currently working at Zenika since November 2014. Notable roles include IT Audit & Coaching, where expertise in data-centric architecture and high-availability log centralization is showcased. As an IT Trainer, Guillaume instructs on various technologies such as Elasticsearch and Kafka. Prior experience at Capgemini involved software architecture for eCommerce platforms and mobile applications, alongside roles as a technical manager and software engineer. Academic contributions include positions as a teacher and researcher at the University of Lille 1 and INRIA. Guillaume holds a Ph.D. in Computer Software from the University of Lille 1 Sciences and Technology, supported by multiple advanced degrees in the field.