I work for NVIDIA on parallel programming models (Fortran, C++, MPI, PGAS) for GPU and ARM platforms.

From 2014 to 2021, I worked for Intel on high-performance computing projects, including oneAPI and SYCL/DPC++.

From 2009 to 2014, I worked at Argonne National Laboratory, where I focused on application and system software for IBM Blue Gene supercomputers and contributed to the development of MPI-3 and its ecosystem.

Before I got into parallel computing full-time, I was a theoretical and computational chemist. I've been a developer of NWChem since 2006.

My website has details.