Engineering and Data at Healthcare Scale

UnitedHealth Group does not maintain a public engineering blog, but the technical scale is staggering: 20,000 engineers, over 1,000 AI applications in production, more than $5 billion in annual technology spend, and access to 20+ years of claims data on 180 million individuals — likely the largest healthcare data corpus on Earth. This module gives candidates the technical context to discuss engineering culture, system scale, and the unique constraints of healthcare engineering during their interviews — even when interviewing at companies that don't publish engineering content.