PhD Position in AI Security: Memory Poisoning in LLM Agents at Linköping University Linköping University in Sweden

Linköping University invites applications for a PhD position in the Division for Communication Systems (KS), Department of Electrical Engineering (ISY), focusing on the cutting-edge topic of AI security: 'Memory Poisoning in LLM Agents: Foundations, Attacks, and Defenses.' This research addresses the critical security risks posed by memory poisoning attacks in large language model (LLM) agents, which are increasingly deployed in domains such as healthcare, finance, cybersecurity, and autonomous vehicles. The project aims to develop theoretical foundations and practical defenses against these attacks, ensuring the reliability and security of next-generation AI systems.

The position is funded by the Swedish Research Council (VR) and offers the opportunity to work at the forefront of AI security research. You will join a dynamic team led by Assistant Professor Khac-Hoang Ngo (Linköping University), Professor Alexandre Graell i Amat (Chalmers University of Technology), and Dr. Johan Östman (Recorded Future), collaborating with 5 PhD students and 2 postdocs. Research visits to Chalmers and Recorded Future are part of the program, providing exposure to diverse academic and industry environments.

Linköping University is internationally recognized for its excellence in AI research, ranked 43rd globally and 12th in Europe. The Division for Communication Systems conducts research and education in communications engineering, statistical signal processing, network science, and decentralized machine learning. The university has also been awarded 'Student City of the Year' in Sweden three times, offering a vibrant academic and social environment.

As a PhD student, you will devote most of your time to doctoral studies and research projects, with the possibility of teaching or departmental duties up to 20% of full-time. The employment is initially for one year, renewable for up to four years full-time, with possible extensions based on teaching and departmental contributions. Salary is determined by locally negotiated progression, and comprehensive employment benefits are provided.

Applicants must hold a Master’s degree in Computer Science, Electrical Engineering, or Applied Mathematics (minimum 240 credits, including 60 advanced credits), or possess equivalent knowledge. Strong mathematical maturity, programming skills, and excellent English communication abilities are required. Candidates should be independent, goal-oriented, and effective collaborators. The degree requirement must be fulfilled by the time the employment contract is signed.

Applications must be submitted online by April 20, 2026. Late applications will not be considered. For further information about the division, visit KS at Linköping University. For questions about the PhD program, contact the department or request to speak with a current PhD student. Linköping University values diversity and equal opportunities, welcoming applicants from all backgrounds.

For more details and to apply, visit the official application page: Apply here.