The School of Natural Sciences at the Institute for Advanced Study in Princeton, New Jersey, will have several openings for members in theoretical physics and astrophysics for the academic year 2017-2018. The positions are at a postdoctoral or higher level in the areas of astrophysics, theoretical biology, mathematical physics, quantum field theory, particle phenomenology, string theory and quantum gravity. Postdoctoral members are selected on their ability to conduct independent research but they frequently collaborate with each other, with faculty members at the Institute or Princeton University, and with researchers at other institutions. Postdoctoral member appointments range from three to five years. Long term members have five-year appointments with a salary that is above post-doctoral level. In addition to exceptional qualifications for pursuing his or her individual research, the successful candidate for a long-term membership should be interested in mentoring, and possibly collaborating with, other post-doctoral members. Long-term members in astrophysics are designated Bahcall fellows. We will also have openings for Junior Visiting Professors. Applicants for these openings should hold a faculty or equivalent position and normally should be within ten years of receiving their Ph.D. Support will be provided to spend a period between one term and one year at the Institute while the faculty is on sabbatical or other leave from their home institution. Junior Visiting Professors are expected to conduct their own research and to help make the research environment at the IAS stimulating to the other members of the School. A small number of senior scientists can usually be accommodated on sabbatical leave. All members are normally eligible for subsidized housing on the Institute campus. All applicants must apply through AcademicJobsOnline. Three letters of recommendation are required and should be submitted directly through the AJO website. Applications must be received by November 15. For more information write to firstname.lastname@example.org or Michelle Sage, School Administrative Officer, School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey, 08540.