Lois Curfman McInnes is an Argonne Distinguished Fellow in the Mathematics and Computer Science Division of Argonne National Laboratory. Her work focuses on high-performance computational science, with emphasis on scalable numerical libraries and community collaboration toward productive and sustainable software ecosystems. Lois serves as Deputy Director of Software Technology for the U.S. DOE Exascale Computing Project. She also co-leads the IDEAS scientific software productivity project, which focuses on improving software productivity and sustainability as a key aspect of advancing scientific productivity. Lois is a SIAM Fellow and serves on SIAM Council. Lois received the 2015 SIAM/ACM Prize in Computational Science & Engineering and a 2009 R&D 100 Award (with collaborators); she also received the E.O. Lawrence Award in 2011 for outstanding contributions in R&D supporting DOE.