👋 Hi, I'm Jinkyung (Zen) Choi

💻 Healthcare-focused Full-Stack Engineer (5+ years)
🩺 Specialized in PACS, DICOM, and Medical Imaging Systems
☁️ Building scalable cloud-based healthcare applications

---

🚀 About Me

• Experienced in designing and developing DICOM Web Viewer & PACS systems
• Built and deployed cloud-based medical imaging platforms used in 120+ hospitals
• Strong background in healthcare interoperability (DICOM, HL7, FHIR)
• Passionate about improving clinical workflows through technology

---

🛠️ Tech Stack

Frontend

• Vue 3, React, Next.js, TypeScript

Backend

• Node.js, REST API, Microservices

Healthcare

• DICOM, PACS, HL7, FHIR

Cloud & DevOps

• AWS (EC2, S3, ELB)
• Docker, CI/CD

Database

• MySQL, MSSQL, Oracle, PostgreSQL

---

📊 Key Experience

• Led cloud migration of a DICOM Web Viewer (SaaS) supporting 120+ hospitals
• Developed real-time medical imaging platform for clinical use
• Built interoperability interfaces (DICOM, HL7, FHIR) across healthcare systems
• Optimized large-scale data platforms (up to 2GB datasets, 30% performance improvement)

---

🧠 Featured Projects

🩻 DICOM Web Viewer

• Real-time medical imaging viewer using Cornerstone.js
• Supported RT Structure, RT Dose, RT Plan visualization
• Multi-tenant architecture with secure access control (RBAC)

📡 Healthcare Integration Platform

• Implemented HL7 / FHIR-based interfaces
• Designed API-driven workflows for clinical data exchange

---

🌱 Currently

• Exploring cloud-native healthcare architectures
• Expanding into integration engineering & system design

---

📫 Contact

• Email: jinkyung.dev@gmail.com
• LinkedIn: (https://www.linkedin.com/in/jinkyung-choi/)