Mathilde holds a research master's degree in African history and a professional master's in development project management. Since 2012, she has carried out numerous field missions for various international NGOs in contexts of natural disasters and conflict (Chad, DRC, Iraq, Nepal, Philippines, Haiti, etc.). After working as a monitoring and evaluation officer and then as a project manager, she joined MSF in 2020 as project coordinator. With MSF, she leaves for Yemen, then with the Swiss section's emergency team, supporting evaluations and project openings in Madagascar, South Sudan and Ukraine. In 2023/2024, she joins the CRASH team as Studies Manager to help organize critical reflection training on MSF operations and lead a research project on North Kivu (DRC).