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# Senior Data Scientist - AI & Machine Learning

- **Company:** Roche
- **Location:** Welwyn, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** A/B Testing, Artificial Intelligence, Data Analysis, Continuous Integration, Python (Programming Language), Machine Learning, SQL Databases, Feature Engineering, Retrieval-Augmented Generation, Generative AI, Information Technology, Machine Learning Operations
- **Published:** October 13, 2026
- **Apply:** https://dejobs.org/x/x/39B02319CA9B4EB0A9384DD6CCA3B00F/job/

## About the Role

You are a visionary technical practitioner who thrives on turning complex organizational challenges into robust, scalable data science solutions. You bring a strong analytical mindset, a collaborative spirit, and a passion for using data to improve patient outcomes.

To be successful in this role, you bring:

 * Quantitative Foundation: Master's or PhD degree in Data Science, Computer Science, Engineering, Statistics, or a related quantitative field (or equivalent practical experience).
 * Deep Data Science Expertise: Proven professional experience building, deploying, and scaling machine learning models in Python, SQL, and modern AI frameworks.
 * Advanced Causal Inference & Modeling: Proven expertise in causal inference techniques (e.g., A/B testing, propensity score matching, synthetic controls) to isolate and measure true incremental business impact.
 * Cross-Functional Leadership: Demonstrated ability to lead complex data initiatives and collaborate effectively across diverse teams.
 * Stakeholder Impact: Exceptional communication skills with the ability to translate technical concepts into business value propositions.

Together, we'll advance along the whole patient journey with the aspiration to prevent, stop, and cure diseases. Ready to make a lasting impact? Apply today and help us shape the future of healthcare!

## Description

At Roche UK, we are transforming healthcare by embedding advanced AI and machine learning into the heart of our commercial and medical strategies., * Architect Enterprise AI: Lead the end-to-end development of advanced machine learning models, from exploratory data analysis and feature engineering to production deployment.

 * Drive Next-Gen Innovation: Prototype state-of-the-art AI solutions, including Generative AI, RAG systems, and predictive models to solve complex commercial and healthcare challenges.
 * Build Scalable Pipelines: Partner with data engineers and global IT teams to ensure AI solutions are scalable, secure, and integrated with CI/CD and MLOps standards.
 * Bridge Tech and Strategy: Translate complex algorithmic outputs and statistical concepts into clear, high-impact business strategies for senior stakeholders.
 * Advance Technical Excellence: Stay at the forefront of the evolving AI landscape (GenAI, ML, NLP) to keep our organization at the cutting edge.
 * Mentor and Guide: Act as a technical subject-matter expert, providing hands-on guidance on model selection and mentoring data science colleagues.