Perimeter Institute for Theoretical Physics invites applications for postdoctoral positions from new and recent PhDs working in fundamental theoretical physics. Our areas of strength include classical gravity, condensed matter theory, cosmology, particle physics, mathematical physics, quantum fields and strings, quantum foundations, quantum information, and quantum gravity. We also encourage applications from scientists whose work falls in more than one of these categories. Our postdoctoral positions are normally for a period of three years. Outstanding candidates may also be considered for a senior postdoctoral position with a five-year term.