Junjie Ji

Junjie Ji is a Senior Data Scientist at Hospital del Mar, specializing in the Artificial Intelligence Unit with a focus on Federated Learning, large language models, machine learning, RAG, and medical imaging since January 2024. Additionally, Junjie Ji serves as an Artificial Intelligence Advisor at My Lab Dental since March 2025. Prior experience includes roles as a Data Scientist and Research Technician at the Hospital del Mar Research Institute, contributing to cancer research, and as a Data Scientist at Institut d’Investigacions Biomèdiques August Pi i Sunyer, where time series analysis and machine learning on electroencephalogram data were performed. Previous positions also include a Data Analyst at NTT DATA and a Solutions Analyst at UVE I Route to market data intelligence. Junjie Ji holds a Master of Science in Data Science and a Bachelor of Science in Mathematics from Universitat de Barcelona, along with an exchange program experience at Changzhou University.