AI and LLMs are transforming e-commerce, recommender systems, and the way research scientists work, and they are opening up new problems and opportunities at the frontier. Preferred Qualifications: First-author publications at top venues (NeurIPS, ICML, ICLR, KDD, SIGIR, RecSys, WWW, WSDM, ACL, CVPR, EC) or impactful open-source work.