An engineer’s notebook
The writing press.
Technical essays on distributed systems, AI engineering, healthcare APIs, and what breaks when software meets production. Published slowly. Written to be read in one sitting.
FHIR in Production Is Nothing Like FHIR in the Spec
After processing 50,000+ daily FHIR requests at Cerner, I can tell you: the spec describes an ideal world. Production describes the one where two hospitals encode blood pressure differently and DocumentReference has 47 optional fields.
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How I Built a PII Detection Engine with LLMs
The architecture behind an ML-powered system that continuously scans codebases, databases, and SaaS integrations for sensitive data.
Zero-Downtime Database Migration at Scale
Two million documents. One month. Zero downtime. Here's how we migrated healthcare documents from Cloudinary to AWS S3.
Event-Driven Architecture Wasn't a Buzzword — It Was a Fix
How we moved wallet monitoring from batch processing to event-driven architecture — and why the architectural shift matters beyond the performance numbers.