At Virgin Media O2 UK, I rebuilt service layers for a new Node.js backend architecture while keeping existing clients running, and created a React Native app for over 25 million UK users.
At Aer Lingus, I proved a write-once model for iOS, Android, and web in an 8-week POC, then continued shipping customer-facing features through shared cross-platform components. My work spans fintech, healthcare, aviation, telecoms, and government, including a HIPAA-compliant, FDA-signed-off app at Renalytix PLC and a configurable React UI for financial-crime software at BAE Systems Applied Intelligence.

