Nathalie Casas studied chemical engineering at the ETH Zurich, where she obtained her Master's degree in 2008 and went on to complete her doctorate. She then took up a position as Application Manager at Sulzer Chemtech, where she was responsible for a large part of the CO2 capture projects. In 2017, Casas moved to Climeworks, a spin-off of ETH Zurich, where she first worked as Head Development & Engineering, then as Head of Technology before joining Empa in October 2023.