Mark Stillwell is a Site Reliability Engineer at Cisco Meraki, working as a member of the Backend Infrastructure team. He was previously a researcher in the Distributed Software Engineering Group at Imperial College London in the United Kingdom, working on the EU-sponsored HARNESS project to develop methods for exploiting heterogeneous processing elements for computational tasks in a cloud environment. The main subjects of his research are scheduling algorithms for distributed systems and simulation of distributed computing platforms, with a focus on high performance and scientific computing. He is also interested in the problems of managing small and large scale computational experiments, with the goal of enabling open and transparent science. He obtained his B.S. from the University of North Florida, USA in 1999, M.S. degrees in Mathematics and Computer Science from the University of Florida, USA in 2002 and 2003 respectively, and his Ph.D. from the University of Hawaii at Manoa, USA in 2010.