Cloud, security and data infrastructure at enterprise scale.

220M+ users. One of the world's largest crypto wallets. Every transaction needs to be observable in seconds, not days.

Designed and built a production-grade data lakehouse on Databricks and Delta Lake, unifying on-chain transactions, user analytics and behavioural signals.

Real-time fraud detection and ML-driven product intelligence at wallet scale.

Mid-pandemic. Records covering ~69M patients across England on legacy on-prem. The platform feeding national vaccine research and COVID response could not go down.

Led the migration of the NHS Secondary Uses Service to AWS with zero-downtime data patterns, coordinating multiple suppliers under high political and public visibility.

National healthcare data flowing securely to clinicians and researchers throughout the COVID response.

A regulated bank's data estate, freshly migrated to AWS, but spread across teams and partner sources. Marketing analysts, risk modellers and forecasters were each re-deriving the same ground from scratch.

Built a production-grade serverless data platform on AWS for Sainsbury's Bank Datalabs, integrating cross-sector datasets behind one governed surface and shipping ML/AI pipelines as versioned, audited products.

A single trusted substrate behind marketing intelligence, fraud and risk modelling, and operational forecasting inside a regulated bank.

Particle physics at the Large Hadron Collider, ~1 PB/day to permanent storage and ~90 PB/year to a ~1 EB tape archive after triggers throw away ~99.99% in real time. The GAIA spacecraft mapping a billion stars. The science only works if the data does.

Designed and operated the data processing and storage infrastructure at the Royal Observatory Edinburgh: 20+ mission-critical servers, secure networks, and capacity planning across long mission lifecycles.

Reliable data pipelines feeding two of the most demanding scientific programmes in the world.