Applications are invited for a Postdoctoral Researcher in experimental quantum optics at IIIQT based at Sogang University in the group of Prof. Wonmin Son (http://qoqi.sogang.ac.kr/IIIQT). The selected researcher will also collaborate with the University of Oxford where he or she may be sent on secondment visits. The post is available initially for a fixed-term duration of 24 months, with the possibility of extension subject to funding.