Stéfan is a lecturer in applied mathematics at Stellenbosch University and a post-doctoral researcher in neuroscience at the University of California, Berkeley. A long time contributor to NumPy and SciPy, he now leads the development of scikit-image, the image processing toolbox for Python. Stéfan is a strong advocate for the use of open source software in science and education (aren’t we all!). In his spare time, he enjoys hiking, running and photography in the great outdoors.