Pavel Shamis is a Principal Research Engineer at ARM. His research interests include high-performance communication networks, communication middleware, and programming models. Prior to joining ARM, he spent five years at Oak Ridge National Laboratory (ORNL) as a research scientist at Computer Science and Math Division (CSMD). In this role, Mr. Shamis was responsible for research and development multiple projects in high-performance communication domain including: Collective Communication Offload (CORE-Direct & Cheetah), OpenSHMEM, and OpenUCX. Before joining ORNL, Mr. Shamis spent ten years at Mellanox Technologies, where he led Mellanox HPC team and was responsible for development HPC software stack, including OFA, OpenMPI, MVAPICH, OpenSHMEM, etc. Mr. Shamis earned his MCS degree from Colorado State University, and his B.Sc degree in Education in Technology and Computer Science from Technion, Israel Institute of Technology. Mr. Shamis is a recipient of 2015 R&D100 award for his contribution to the CORE-Direct collective offload technology.