Nicolas Muller is a research engineer at École normale supérieure Paris-Saclay. After obtaining his Master’s degree in Mechanical Engineering from École normale supérieure Paris-Saclay in 2016, he has been the technical manager of additive manufacturing production machines since 2017 (L‑PBF cell and hybrid WLAM–milling robotic cell). He also supervises the French user group for AddUp laser powder fusion machines. His current work focuses on in‑situ monitoring of additive manufacturing processes and data analysis to improve preventive maintenance and part quality.