Mathilde Guillon

At Accor, I work on topics at the intersection of human resources, HRIS tools, and HR data. I support HR and People & Culture teams in managing employee processes, including onboarding, mobility, administrative management, and data validation within internal tools.

My role also involves producing, controlling, and analyzing HR reports to track headcount, employee movements, and various social indicators. I contribute to HR data quality by identifying inconsistencies, assisting with corrections, and helping teams better utilize available information to manage their activities.

I also participate in HRIS projects: gathering and formalizing user requirements, contributing to testing and acceptance phases, tracking anomalies, continuously improving processes, and supporting users. This experience gives me both an operational HR and a technical perspective, with a good understanding of data validation, automation, and HR management challenges.

Associated skills:HRIS, SuccessFactors, HR reporting, data quality, onboarding, UAT, continuous improvement, Excel, Tableau, HR user support.

In a multi-site operational environment, I managed the daily HR for several points of sale. I was responsible for personnel administrative follow-up, preparing contracts and amendments, managing employee files, and tracking employee departures and arrivals.

I also participated in recruitment, onboarding new employees, and supporting managers with their daily HR needs. This experience allowed me to develop a very hands-on approach to human resources, with close proximity to operational teams.

In parallel, I worked on preparing and checking variable payroll elements, updating HR tools, and optimizing tracking spreadsheets to ensure employee information accuracy and facilitate HR management. This experience reinforces my hybrid profile, combining generalist HR skills with a structured, tool/process-oriented approach.

Associated skills:personnel administration, payroll, recruitment, onboarding, multi-site management, HR dashboards, Silae, operational HR management.

At Heska Énergies, I developed my initial skills in administrative management, internal coordination, and activity tracking. I handled daily administrative requests, document management, updated management spreadsheets, and coordinated with operational teams.

I also participated in tracking quotes, invoices, and customer data in management tools, as well as transmitting administrative information to accounting and payroll teams. This experience helped me strengthen my rigor, organization, and ability to structure information in a demanding professional environment.

It provides a solid foundation for my current HR and HRIS roles, particularly in data validation, administrative follow-up, and internal process improvement.