December 2025: Delivered a security-focused fix for Aristote video elements on the loading page within EsupPortail/Esup-Pod. The change sanitizes dynamic content (titles, descriptions, disciplines) in the Aristote loading page JS to prevent potential JavaScript injection vulnerabilities and to improve reliability of video element interactions. The work was implemented in a targeted commit (8f8da387a2da5877acf4eb95b7daeacdef35994d) and demonstrates secure coding, precise scope, and maintainable changes. Business impact includes reduced security risk for media playback, improved user experience from fewer interaction issues, and a stronger security posture for the component. Skills demonstrated: front-end JavaScript security, input sanitization, version-control discipline, and targeted bug-fix methodology.