This project explores a new experimental platform combining single-atom control with cavity-mediated long-range interactions. Using an array of optical tweezers inside a high-finesse optical microcavity, we aim to engineer and study entangled many-body states of cold atoms with single-particle resolution. The system opens exciting perspectives for quantum simulation of spin transport under tunable disorder and dissipation, as well as for quantum-enhanced metrology. Depending on progress, the internship will focus on real-time tweezer control or cavity-assisted Raman transitions. The student will join a dynamic team at LKB and gain hands-on experience in optics, lasers, cold atoms, and cavity QED physics.