We invite applications for a postdoctoral research position at Columbia University to conduct research with the GAPS Antarctic balloon program, the first experiment optimized specifically for cosmic antiprotons, antideuterons, and antihelium as signatures of dark matter. GAPS is funded for its first two launches, with Flight 1 scheduled for late 2023. The Columbia University group is leading overall payload integration, in particular the Si tracker system at the center of the experimental design. We are seeking a talented applicant to take a leading role in experiment integration and testing, flight analysis, and next-generation detector R&D. Ideal candidates will have experience with instrumentation, in particular hardware commissioning, as well as particle physics simulation an