Wenyuan Xu

The Hong Kong Polytechnic University (PolyU) is recruiting for a new research group led by Xinfeng Li in the Department of Data Science and Artificial Intelligence. The group focuses on AI security , privacy , trustworthy agentic AI systems , multimodal LLM security , and related topics in responsible AI. Open positions include PhD students for Fall 2027 , as well as postdocs , research assistants , and research interns . The research agenda emphasizes securing interactions between agentic AI systems and the real world, improving robustness against external attacks, and building helpful, harmless, and honest AI agents. Preferred applicants should have strong technical foundations, curiosity, motivation, and persistence. Prior publications are welcome but not mandatory. The post also highlights interest in candidates who can think deeply about challenging problems and build practical systems. Research directions mentioned include: security and privacy of agentic AI systems; responsible AI in social contexts, including multi-agent and human-agent interactions; multimodal AIGC risks such as deepfake generation and detection; and trustworthy AI for applications in healthcare, power grids, software engineering, IoT, and telecommunications. To apply, email your CV, transcript, and a brief self-introduction (maximum one page) to [email protected] with the subject line [PhD/Postdoc/RA Application] Name - University - Major . No deadline is stated in the post.