Alexander Poylisher has been doing applied computer science at Vencore Labs (formerly Bellcore/Telcordia/Applied Communication Sciences) for over 20 years, working on diverse problems in performance, modeling/simulation/virtualization, and security of distributed systems and protocols, particularly in wireless networks, on. multiple DARPA and U.S. Army programs. He is currently the PI of the Vencore Labs/UPenn/Princeton team on the DARPA Dispersed Computing program.