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Chia-Yu Chiang · 江家寓
Indie Medical Software Developer
Summary
Biomedical Engineering senior at Ming Chuan University (Class of 2026). Solo-designed and shipped a medical software ecosystem — ClinCalc (consumer), ExClinCalc (clinic CDSS), clinconvert (FHIR interop research), plus the cross-domain Kaizei personal-finance OS. End-to-end ownership from system architecture, database authorization and zero-knowledge encryption to edge deployment and CI/CD. Engineering stance: privacy first, rules over LLMs, security at the database layer.
Highlights
Selected Work
Consumer health self-check & multimodal interpretation platform
Helps everyday users understand lab reports with trustworthy, explainable interpretation.
Clinical Decision Support System (CDSS) for primary clinics
Full workflow loop: registration → SOAP charting → prescription check → pharmacist dispensing.
FHIR R4 interoperability research POC
Research proof-of-concept: structuring Excel medical records into HL7 FHIR R4 Bundles.
Personal Finance OS (desktop app)
The same engineering approach, carried across domains — medical-grade security thinking applied to personal finance.
Experience
- Designed and shipped a clinic CDSS: 6-role RBAC, 14 tables / 29 PostgreSQL RLS policies, TOTP MFA and a complete audit trail; ran a STRIDE threat model (24 threats).
- Built a consumer platform with real-time interpretation of 45 lab indicators (incl. KDIGO 2024 staging) and a "rules-first, then LLM" privacy architecture keeping raw data local.
- Deployed entirely on the Cloudflare Workers + Supabase free tier at $0/month run cost; automated CI/CD via GitHub Actions.
- Carried medical-grade security thinking into personal finance: a zero-knowledge vault (PBKDF2 + AES-256-GCM, server physically unable to decrypt), OS keychain integration, Electron sandbox.
- Double-entry ledger + TW/US stock integration; TypeScript strict, Dependabot supply-chain monitoring.
- Built a student-roster and daily-management web app (Vite + Firebase) for internal use at the after-school program where I worked.
Skills
Languages
Frontend
Backend / Data
Security
Domain
DevOps
Education
Started in Computer & Communication Engineering, transferred to BME in sophomore year. Capstone: the ClinCalc / ExClinCalc medical information systems.