Jean-Louis began his career at Arcelor Florange in 2005 as a Project Manager, later transitioning to ArcelorMittal Worldwide CTO. He took on operational roles at ArcelorMittal Dudelange, including Line Manager Operations and Plant Manager. In January 2023, he joined the Segments & Products Business Development department as a Senior Market Analyst. He holds a Master's Degree from ENSAM Paristech.