Hi, I'm Zach 👋

Data Scientist at the BHF Data Science Centre (HDR UK) and Visiting Data Scientist at the University of Leeds.

I build tools and pipelines for cardiovascular and cancer research using large-scale NHS datasets — typically working with 50M+ patient records in trusted research environments.

What I work on

• Healthcare data pipelines — PySpark, Databricks, R/dbplyr, SQL
• National Secure Data Environemnts - NHS England Secure Data Environment, SAIL in Wales.
• LLM applications — RAG systems for clinical documentation and codebase intelligence
• Data curation tools — phenotype search, metadata management, validation frameworks
• Research software engineering — making analytical code reproducible and shareable

Tech stack

Currently building

• 📊 Cardiovascular and Oncology datasets for world leading reseach.
• 🤖 Question-answering systems for healthcare documentation.

Find me elsewhere

_{🏠 Working from home in Leeds, UK}