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Jean-Marie Gueirard started their work experience as a Software Engineer at Azuriel Technologies in September 2011. Jean-Marie then joined ricardo.ch in October 2012 as a Senior Mobile Engineer and worked on the project "ricardolino.ch" until February 2019. After that, they worked as a Freelance Software Developer at Akamaz from April 2019 to January 2020. Currently, they hold the role of Principal Engineer at Ricardo AG, starting from March 2020.

Jean-Marie Gueirard attended Exia.Cesi from 2007 to 2011, where they earned a degree in Responsable en ingénierie logiciel (Computer Software Engineering). In 2017, they obtained the Xamarin Certified Mobile Developer certification from Xamarin.