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ianlyoo/README.md

Hi, I'm Youngin (Ian) Lyoo

I'm an AI/AX Workflow Automation Engineer focused on LLM Integration & Agentic Workflows — building MCP servers, RAG pipelines, and evaluation automation with Python/FastAPI (UC Irvine CE, on leave). I learn by shipping small, useful systems that connect real data to clear user workflows.

Current Focus

  • AI/AX workflow automation — MCP servers, RAG pipelines, evaluation automation
  • LLM Integration & Agentic Workflows for repetitive research, reporting, and operations
  • Finance tooling — stock screening, brokerage dashboards, research packets (grounded generation)
  • Local-first apps simple enough for non-developers to run

Building reliable systems first, then extending into LLM evaluation and RAG operations — the two new tracks below complement the existing data and API work.

Projects

Project What it is
K-invest Read-only investment-data MCP server (Toss, KIS, SEC EDGAR, yfinance, Binance) for web LLMs
llm-eval-pipeline Offline LLM evaluation harness: synthetic data → rule/proxy + optional LLM judge → error analysis
rag-ops-console RAG operations sandbox: Chroma VectorDB + LangGraph + feedback monitoring
signal-foundry Stock-screening engine that emits PDF research packets for people and MCP for agents
koreainv-dashboard Personal KIS account dashboard across desktop, web, and Android

Other Projects

Project What it is
zoomcheck Zoom attendance dashboard that auto-matches and queues only ambiguous cases
margin-ta Technical analysis engine for margin and trend signals
sat-qbank-exporter Local-first exporter that turns the College Board question bank into printable PDF sets

Stack

Python · JavaScript/TypeScript · C# · Kotlin · FastAPI · Electron · ASP.NET Core · Android

Pinned Loading

  1. K-invest K-invest Public

    Read-only investment data MCP server for web LLMs — Toss Securities, KIS, SEC EDGAR, yfinance, Binance Futures

    Python 1

  2. llm-eval-pipeline llm-eval-pipeline Public

    Offline Self-Evolve pipeline: synthetic data → Rule+LLM Judge → lm-eval harness before/after

    Python

  3. rag-ops-console rag-ops-console Public

    Online RAG Ops console: Chroma VectorDB + LangGraph 5 nodes + RAGAS + Sheets feedback loop

    Python

  4. koreainv-dashboard koreainv-dashboard Public

    Korea Investment Securities dashboard

    Python 1

  5. latebris latebris Public

    Android location spoofing research tool for GPS, Wi-Fi, and cell-signal simulation

    Kotlin 3 1

  6. zoomcheck zoomcheck Public

    Zoom attendance dashboard with roster matching, review queue, and webhook-ready backend

    C# 1