We are looking for highly motivated researchers to join the Quantum and Ultrafast Optoelectronics (QUO) Unit at the Okinawa Institute of Science and Technology (OIST) , located on the beautiful island of Okinawa, Japan. We currently have two openings for Postdoctoral Scholars . While the primary research areas for the positions are outlined below, we also welcome ambitious researchers from complementary backgrounds who are eager to explore and develop new scientific directions. The QUO Unit works at the intersection of condensed matter physics, ultrafast and terahertz (THz) spectroscopy, materials science, and device engineering. We seek to understand how emergent quantum phenomena arise in low-dimensional materials, how they interact with light, and how these interactions can be harnessed to control quantum states and enable new forms of energy and information transport and conversion. Our approach combines the fabrication of 2D quantum materials and van der Waals devices with the development of THz microscopy and precision spectroscopy, while exploring their translation into quantum information science. Postdoctoral Scholars will have opportunities to develop expertise across areas including 2D quantum materials, van der Waals device nanofabrication, quantum and qubit platforms, ultrafast microscopy, THz spectroscopy, microwave techniques, and antenna design/fabrication . OIST provides a highly interdisciplinary research environment with cutting-edge shared facilities and close interaction among researchers. The Unit will also support motivated Postdoctoral Scholars in preparing for future independent research careers through opportunities to pursue original research directions and build new collaborations. We very much look forward to hearing from creative and ambitious early-career researchers.