Stefan Karpinski

Stefan Karpinski is an American computer scientist known for being a co-creator of the Julia programming language. He is an alumnus of Harvard and works at Julia Computing, which he co-founded with Julia co-creators, Alan Edelman, Jeff Bezanson, Viral B. Shah as well as Keno Fischer and Deepak Vinchhi. He also has a part-time appointment at New York University's Center for Data Science as a Research Engineer as part of the Moore-Sloan Data Science Environment.
He received a B.A. in mathematics from Harvard in 2000, and has completed much of the work on a PhD in computer science from UCSB with research on modeling local area network traffic. He is one of the four main authors of core academic papers on Julia. He speaks regularly on Julia at industry events on scientific computing, programming languages, and data science.
In 2006 Karpinski participated in the Subway Challenge, holding for some time the Guinness World Record for the fastest transit stopping at all NYC subway stations.