NVIDIA Multi-GPUs Programming

I am looking for someone with experience in offloading CPU code/functions to Multi-GPUs. The project involves converting existing code written in C to be compatible with NVIDIA GPUs. Must understand MPI , OpenACC Acceleration, OpenMP offloading, Parallel Processing, Parallel Computing, GPU porting libraries for GPUs and good at C/C++ programming. Must be expert in computer science, numerical libraries, performance optimization and parallel programing. Several Projects small and big projects will follow for the right person.