Ziyuan Guan
Building data infrastructure and systems for clinical AI — ETL pipelines, EHR data wrangling, and embedding models into production. Leading data and systems cores across multiple NIH-funded projects.
Featured Projects
AI agents for real clinical workflows — ambient documentation, smart orders, and prior authorization automation.
Deny-by-default policy engine with SHA-256 audit trail for AI agent governance in clinical environments.
Health Asset Value & Exchange Network — patient data sovereignty protocol with consent, provenance, and value tracking.
Patient Scenario Definition Language — deterministic, portable language for clinical decision support and research scenarios.
Experience
Lead Data Systems Architect across multiple NIH-funded initiatives (Bridge2AI-ChoRUS, MEnD-AKI, Intelligent-ICU, XAI-IDEALIST). Manages cloud resources (Azure, AWS), HPC allocations, and data pipelines for 14M+ encounter datasets.
Distributed Linux systems with UF Health IT. EHR ETL pipelines with Python, Spark, Kafka. Built React + Flutter web/mobile apps for MySurgeryRisk.
MySurgeryRisk platform — PHP/JS frontend, Java RESTful APIs, Spark/Kafka AI engine. 1000% caching improvement via Memcache/Redis.