Ewa Deelman is an American computer scientist specializing in distributed computing and cloud computing for applications in scientific computing. Her contributions include leading the design of the Pegasus scientific workflow management system, used by the LIGO scientific collaboration to detect gravitational waves from binary black holes.[1] She is a research professor of computer science in the USC Viterbi School of Engineering, and a principal scientist at the Information Sciences Institute, both part of the University of Southern California.[2]