I'm Jaemin Lee, a software engineer. I care about writing code that's fresh and clean.

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, or find inspiration listening to jazz.

Currently working as a Frontend Developer at PublicAI in Seoul.

2026

• NTS E-Filing Consultation — Chatbot for National Tax Service, built service pages with Tanstack 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 100+ 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 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)