I'm Jaemin Lee, a software engineer who values fresh & clean code.
I like the saying, "Perfection is achieved when there's nothing left to remove." That's why I aim for minimal duplication and sensible structure.
Beyond just solving problems, I think about ways to boost productivity. I enjoy improving developer and user experience through type automation, caching, and performance optimization.
I work with React and TypeScript, and I'm drawn to declarative data fetching like GraphQL.
In my free time, I learn new technologies, play games, and find inspiration listening to jazz.
Currently working as a Frontend Developer at PublicAI in Seoul.
2026
- NTS E-Filing Consultation — National Tax Service chatbot; built service pages with TanStack Query and admin pages with Relay (React, TypeScript)
2025
- RAG Stack — Internal RAG chatbot platform; architected GraphQL with PostGraphile + Relay (React, TypeScript)
- RAMP — Hyundai ML research platform; established internal GraphQL + Relay standards (React, TypeScript)
- Gimje Smart Farm — Smart farm management platform; automated API types with Orval + TanStack Query (React, TypeScript)
2024
- Seaweed Biomass Prediction App — Pulmuone R&D; mobile-optimized webview; ranked 1st in R&D project (React, TypeScript)
- DMMBS — Military Medical Direct Billing System; full redesign of legacy webview (React, TypeScript)
2024
- Anipod — Abandoned animal protection platform; selected as a promising startup team (Flutter, Dart)
2023
- Umate — Dankook University student community; official Student Council app (Flutter, Dart)
2022
- Plantory — Plant care management app; DKU hackathon Excellence Award (Flutter, Dart)
2019
- Got a plan — Drag-based scheduling app; 10,000+ downloads (Android, Kotlin)