Full-stack engineer in Seoul with 8+ years of production experience. I ship systems end-to-end — from architecture and implementation through deployment and on-call operations — and I'm comfortable working across frontend, backend, mobile, and infrastructure in the same week.
What I work on
- 🔐 Security & platform engineering — attack surface management, asset discovery, graph-based relationship modeling
- 🤖 AI / LLM products — RAG pipelines, agentic workflows, code and security analysis tools built on OpenAI and self-hosted models
- 🛒 Commerce & internal platforms — 0→1 builds with payments, admin back-offices, and the boring operational glue that keeps them running
- 📱 Cross-layer full-stack — web, native mobile, and the infra underneath, owned end-to-end
Tech I reach for
TypeScript React Next.js Node.js NestJS Python FastAPI Kotlin Spring Boot Swift PostgreSQL MongoDB Neo4j AWS Terraform Docker OpenAI Ollama
How I work
I treat estimates as commitments, write clear async updates, and escalate early when something's off track. Calm in 0→1 ambiguity, opinionated about maintainability, allergic to over-engineering.
Languages
Korean (native) · English (business) · Japanese (business)
📫 hoon2585@gmail.com · LinkedIn