At Johnson & Johnson,we believe health is everything.
Our strength in healthcare innovation empowers us to build aworld where complex diseases are prevented, treated, and cured,where treatments are smarter and less invasive, andsolutions are personal.
Job Function Data Analytics & Computational Sciences Job Sub Function Data Science Job Category Scientific/Technology All Job Posting Locations: Barcelona, Spain, Cambridge, Massachusetts, United States of America, Madrid, Spain, Spring House, Pennsylvania, United States of America, Titusville, New Jersey, United States of America Job Description J&J; Innovative Medicine – Data, Data Science, and AI - Integral Development (DDSAI GD) is recruiting a Principal Data Scientist – AI/ML and Optimization.
The ideal candidate will leverage, adapt, and extend machine learning (ML), optimization techniques, and Gen AI techniques to create computational pipelines supporting global clinical operations including enrollment forecasting, cost estimation and optimization, and country/site selection.




We have produced and marketed many first-in-class prescription medications and are poised to serve the broad needs of the healthcare market – from patients to practitioners and from clinics to hospitals.
Leverage operational, real-world (RWD), and cost data to develop ML models and optimization engines that support data-driven decision making across operational planning.
Formulate and solve optimization problems that quantify tradeoffs among competing objectives, such as cost, timelines, patient burden, quality, and operational efficiency.
Build explainable decision-support systems that translate complex analytics into actionable insights, enabling proactive planning, early risk identification, and informed business decision making.
Adapt large language models (LLMs) for tailored information extraction and to create solutions including conducting comparative analytics on clinical trial protocols and trial similarity assessment, clinical trial

📌 Junior Data Scientist (España)
🏢 Johnson & Johnson Innovative Medicine
📍 España