Former ICU nurse and Special Forces platoon leader, now building software where reliability is not optional.
In the last 90 days I shipped 30+ projects, taught myself backend and AI orchestration beyond my bootcamp curriculum, and built a full clinical decision support platform from scratch - then rebuilt it in Ruby on Rails over a weekend to compare architectures. I learn fast because I spent a decade in environments where slow learning has real consequences.
A full-stack clinical intelligence platform with multi-model AI orchestration, RAG-powered evidence retrieval, and real-time FHIR data integration.
Next.js Demo | Rails Demo | GitHub Monorepo
- AI Orchestration: Model fallback chain (Gemini 2.5 > Flash Lite > Gemma 3) with automatic 429/503 recovery for continuous uptime
- RAG Pipeline: Semantic search using Supabase pgvector with 768-dim embeddings and custom chunking for clinical documents
- FHIR Integration: Live HL7 FHIR R4 data explorer pulling from HAPI FHIR servers
- Security: Zod schema validation, Upstash Redis rate limiting, structured audit logging
- Evidence Grounding: PubMed API integration to cross-reference AI output with peer-reviewed literature
| Project | What it does | Stack |
|---|---|---|
| FHIR Pulse | Clinical interoperability dashboard with real-time vitals via Express/AWS proxy | Next.js, Node.js, AWS, HL7 FHIR |
| Skinstric | AI biometric capture with MediaPipe BlazeFace and 36-segment face positioning (internship) | React, Next.js, Firebase |
| API Security Linter | Static analysis tool enforcing OpenAPI 3.0 security rules, integrated as CI/CD gate | Python, GitHub Actions |
| Summarist | Full-stack SaaS audiobook platform with Stripe payments (internship) | Next.js, Firebase, Stripe |
| 3D Storefront | Interactive 3D product visualization with custom shaders | Three.js, WebGL |
Frontend: React, Next.js, TypeScript, Tailwind CSS, Three.js Backend: Node.js, Express, Ruby on Rails, PostgreSQL, Firebase AI & Data: Vercel AI SDK, Gemini/Gemma, Supabase pgvector, PubMed API Infrastructure: AWS (App Runner, EC2, S3), Redis, GitHub Actions, Fly.io Domain: HL7 FHIR R4, HIPAA-compliant architecture, clinical workflow systems
As an ICU nurse I watched bad software create alert fatigue that put patients at risk. As a Special Forces leader I learned that systems need to work under pressure, not just under test conditions. I build software with that same standard - if it cannot handle the 3AM edge case, it is not ready to ship.
Portfolio | LinkedIn | grcodes@outlook.com Dual US/Greek citizen | US-based LLC | Available for remote roles immediately