νκ΅μ΄ README | π Interactive Portfolio β
20+ years architecting distributed systems across medical imaging, audio rendering SaaS, and industrial domains.
Core Impact:
- Orchestrated 10+ microservices in C++, Rust, Go, Python with RabbitMQ/Redis
- Led FDA 510(k), CE, KFDA certifications, authoring 1,200+ pages of technical documentation
- Achieved 2x throughput improvement and 50% latency reduction through microservices migration
- Built PACS, DICOM viewer, orthodontic simulation systems from scratch at IPO companies
Currently seeking opportunities in cloud-native platforms and backend infrastructure.
π View detailed achievements & projects β
| Metric | Achievement |
|---|---|
| Experience | 20+ years in distributed systems |
| Microservices | 10+ services (C++, Rust, Go, Python) |
| Performance | 2x throughput, 50% latency reduction |
| Certifications | FDA 510(k), CE, KFDA, CCC |
| Documentation | 1,200+ pages (SRS/SDS) |
| Team Leadership | Led teams of 3-11 members |
| Zero-to-One | 4+ systems built from scratch |
| IPO Experience | 2 companies (VATECH, Ray) |
AI Music Composition SaaS Startup | 75 employees
Led distributed system architecture for audio rendering SaaS platform. Orchestrated 10+ microservices in C++, Rust, Go, Python with daily release cycle.
Key Impact: RabbitMQ cluster, Redis Sentinel HA, OpenTelemetry tracing, zero-downtime CI/CD
Tech: Rust, Go, C++, AWS, RabbitMQ, Redis, OpenTelemetry, Docker, GitHub Actions
Dental Medical Imaging (Samsung Electronics Spinoff) | 300+ employees | 12 years | IPO
Built PACS server, DICOM viewer, 2D orthodontic simulation, and modality control systems from scratch.
Key Impact:
- 15 MB/s throughput on 100Mbps network (exceeds theoretical 12.5 MB/s)
- 50% latency reduction (50ms β 25ms) through async I/O pipeline
- Established IEC 62304 Class B/C processes company-wide
- Led FDA 510(k), CE, KFDA, CCC global certifications
Zero-to-One Projects: SMARTDent v3 microservices, Database Gateway, High-speed file transfer, Intraoral Sensor SDK
Tech: C++14, C#, .NET Core, ASP.NET Web API, WPF, DICOM, PostgreSQL, DCMTK
Dental X-ray & CBCT Equipment | 300+ employees | IPO
Developed DICOM viewer and modality control systems for dental X-ray/CBCT equipment.
Key Impact: Contributed to CE, FDA, KFDA certifications, first IPO experience
Tech: C++, DICOM, X-ray, CBCT, Medical Device Certification
Purplechips (POSTECH) | Lead Programmer (2022.03 - 2022.10) AI-based EDA startup - Designed AI job serving system for semiconductor design automation
VATECH E-WOO Holdings | Senior Engineer (2008.10 - 2009.07) Medical imaging software development
πΌ Detailed experience, projects & technical contributions β
Languages: C++ (14/17), C#, Rust, Go, Python Distributed Systems: Microservices, RabbitMQ, Redis Sentinel, OpenTelemetry, Docker Backend: .NET Core, ASP.NET Web API, PostgreSQL, MySQL, TCP/IP Medical Imaging: PACS, DICOM (C-STORE/C-FIND/C-MOVE), ISO 13485, IEC 62304, HIPAA Cloud & DevOps: AWS, GitHub Actions, zero-downtime deployment UI: WPF (MVVM), Qt/QML
π οΈ Complete tech stack, certifications & specializations β
Medical Device: IEC 62304 (Class B/C), ISO 13485, ISO 14971, FDA 510(k), CE, KFDA, CCC Healthcare Compliance: HIPAA Technical Safeguards, DICOM PS3.15 De-identification
Bachelor of Science in Electronic Engineering | Inje University (1997 - 2005)
English: Conversational (OPIC IM2, IELTS 6.0) | Korean: Native
Exploring opportunities in distributed systems, cloud-native platforms, and SaaS backend architecture. Open to Rust/Go infrastructure projects and medical device regulatory consulting.
π§ [email protected] πΌ LinkedIn π Interactive Portfolio
Delivering measurable impact through distributed systems architecture and regulatory compliance expertise.