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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr Data Scientist Prod Ai&Ml - **Company:** Johnson U0026 Johnson - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Python (Programming Language), Machine Learning, Operational Data Store, Standard Sql, Delivery Pipeline, Large Language Models, Data Analytics, GPT - **Published:** August 10, 2026 - **Apply:** https://www.buscojobs.com.es/sr-data-scientist-prod-ai-ml-en-barcelona-ID-366865095 ## About the Role Compensaciones / Beneficios * Conceptualize, develop, and deploy GenAI and ML solutions for clinical trial operations * Fine-tune and adapt large language models for protocols, trial similarity, data harmonization, and eligibility criteria evaluation * Leverage operational data and optimization techniques to build scenarios for cost and enrollment optimization and real-world data insights * Contribute to patient modeling and enrollment simulations to forecast trial completion * Communicate technical methods and results clearly to diverse audiences to support decision-making Responsabilidades * Ph.D. in a quantitative discipline * 2+ years of industry experience delivering data science projects with predictive technologies, forecasting, optimization, NLP, AI, or ML * Hands-on experience with LLM frameworks and clinical/medical LLMs and fine-tuning * Proficiency in Python and SQL * Passion for leveraging data to drive scientific innovation * Excellent interpersonal, communication, and presentation skills Requisitos principales * ## Description Experteer Overview In this role you enable data-driven clinical operations by applying GenAI, ML, and NLP to optimize enrollment forecasting, cost, and site/country selection.You will adapt advanced ML and GenAI methods to build pipelines supporting global trials and real-world data insights.You'll communicate complex results to diverse partners to drive decisions and impact patient outcomes.This role sits within Ju****amp;J Innovative Medicine, contributing to scalable, data-informed clinical operations.Compensaciones / Beneficios * Conceptualize, develop, and deploy GenAI and ML solutions for clinical trial operations * Fine-tune and adapt large language models for protocols, trial similarity, data harmonization, and eligibility criteria evaluation * Leverage operational data and optimization techniques to build scenarios for cost and enrollment optimization and real-world data insights * Contribute to patient modeling and enrollment simulations to forecast trial completion * Communicate technical methods and results clearly to diverse audiences to support decision-making Responsabilidades * Ph.D. in a quantitative discipline * 2+ years of industry experience delivering data science projects with predictive technologies, forecasting, optimization, NLP, AI, or ML * Hands-on experience with LLM frameworks and clinical/medical LLMs and fine-tuning * Proficiency in Python and SQL * Passion for leveraging data to drive scientific innovation * Excellent interpersonal, communication, and presentation skills Requisitos principales * ## Related Videos - [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data) - [ Evaluating AI models for code comprehension](https://www.wearedevelopers.com/videos/1462-evaluating-ai-models-for-code-comprehension) - [How building an industry DBMS differs from building a research one](https://www.wearedevelopers.com/videos/768-how-building-an-industry-dbms-differs-from-building-a-research-one) - [Developer Experience, Platform Engineering and AI powered Apps](https://www.wearedevelopers.com/videos/990-developer-experience-platform-engineering-and-ai-powered-apps) - [How Data is Shaping our Games](https://www.wearedevelopers.com/videos/176-how-data-is-shaping-our-games) - [Analytics in the Age of Agentic AI: A tour of ClickHouse and Langfuse](https://www.wearedevelopers.com/videos/100240-analytics-in-the-age-of-agentic-ai-a-tour-of-clickhouse-and-langfuse) ## Related Articles - [Coffee with Developers - Maria Apazoglou - Making AI understandable for all in production](https://www.wearedevelopers.com/magazine/475-coffee-with-developers-maria-apazoglou-making-ai-understandable-for-all-in-production) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [MLOps – What’s the deal behind it?](https://www.wearedevelopers.com/magazine/125-mlops-what-s-the-deal-behind-it) - [What Are Large Language Models?](https://www.wearedevelopers.com/magazine/304-what-are-large-language-models) - [Graph and AI Trends 2026: Why Is AI Running but Not Yet Delivering?](https://www.wearedevelopers.com/magazine/680-graph-and-ai-trends-2026-why-is-ai-running-but-not-yet-delivering) - [Got AI ideas but no money? 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