Skip to content
View minwoo-data's full-sized avatar

Block or report minwoo-data

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
minwoo-data/README.md

Hi, I'm Minwoo Park 👋

AI Engineer building agentic, multi-agent tooling and the data systems underneath it. MISM (Business Intelligence & Data Analytics, AI Management concentration) at Carnegie Mellon University, Aug 2026 to Dec 2027.

Most recently the sole engineer on a production AI expense platform at Accuver America (Python, Flask, SQLite, Docker): receipt OCR, statement matching, 729 merged PRs, a 5,100+ test suite behind CI gates, and a Gemini-to-Claude fallback chain benchmarked against a 90-receipt golden set.

What I Work With

  • LLM / AI: RAG, prompt caching, structured output, multi-agent orchestration, LLM evaluation and golden-set benchmarking, LangChain, Anthropic / OpenAI / Gemini APIs, MCP, ChromaDB, OCR extraction, Text-to-SQL
  • Data & Engineering: Python (Flask, pytest, pandas, scikit-learn), SQL (SQLite, MySQL, DuckDB, PostgreSQL / Supabase), R (caret, glmnet), Java, Docker, GitHub Actions, Playwright, Streamlit, React, Power BI (DAX), process mining (ProDiscovery)
  • Certifications: AWS Certified AI Practitioner, AWS Certified Cloud Practitioner, Lean Six Sigma Yellow Belt

Recent Work

  • AI Expense Platform (Accuver America, 2026): receipt OCR, statement parsing, receipt-to-statement matching and exception flagging that cut reconciliation time 90%+; benchmarked 7 LLMs, cut LLM cost ~90% with prompt caching, shipped nine schema migrations on the live database with rehearsed drills
  • Weekly finance tooling (Accuver America): rolling sales forecast automation (about 6 hours of weekly manual work to a one-minute run), a DuckDB + Streamlit revenue-forecast comparison tool with a guarded Text-to-SQL assistant, and a Salesforce pipeline change tracker
  • 5G-domain RAG prototype (Accuver America): LangChain + ChromaDB + Claude over 7 standards whitepapers (~700 chunks) with a Streamlit UI
  • Sustainability data audit (Andersen Corporation, 2025): Python + Power BI data-integrity audit across 50+ sites and 20+ vendors that surfaced $20K+ in duplicate billing and weighing errors
  • Process mining (PuzzleData, 2024): 3M+ funnel log rows on a life-insurance engagement whose recommendations lifted final-stage conversion 5%; led a procurement proof of concept (1,200+ events, ~80-85% conformance)

Featured Projects

  • Sharday: collaborative 2-4 person travel planner (React 19, Supabase with RLS, Edge Functions, realtime sync, Cloudflare Pages); 251 commits, 19 migrations, used by 5 people
  • Walmart Purchase Prediction: regression model comparison in R (linear, ridge, lasso, RF, GBM) on 550K+ transactions; log-linear best at R² 0.74
  • Process Mining Portfolio: procure-to-pay event log from three systems, discovery and conformance checking (~80-85%)
  • 보다 (boda): vision OCR (Gemini to Claude) that turns receipt images into structured expense data and Excel

Claude Code Tooling

Seven open-source plugins for Claude Code, used throughout the 729-PR Accuver codebase and adopted by the successor engineer:

Parallel workflow

  • ddaro: worktree-based parallel workflow with deletion-aware staging, crash-recoverable context, and CI-orchestrated merges

Multi-model review

  • prism: multi-angle code review, 5 parallel agents plus a singleton verifier pass
  • triad: 3-perspective deliberation (clarity, longevity, comprehension) until consensus
  • mangchi: cross-model code hardening, Claude writes while Codex CLI critiques one axis at a time
  • prism-devil: single-agent attacker-mindset review with auto-loaded checklists

Deep research as verified RAG

  • batchim (받침): verification-gated research with an isolated verifier, 3-panel entailment checks, code-enforced span/number anchors, and a sha256-signed run ledger

Receipts

  • boda (보다): the vision OCR pipeline above, packaged as a plugin

Technique cards (not counted above)

How I Work

I treat AI coding as an engineering system, not a single chat:

  • Parallel, isolated branches: worktrees keep concurrent work from colliding (ddaro)
  • Cross-model review gates: Claude and Codex critique each other before anything merges (prism, triad, mangchi)
  • Verification before trust: research and retrieval must cite, anchor, and pass entailment checks, not just sound right (batchim)
  • Distill what works: recurring solutions become reusable technique cards (galmuri to knowledge)

Contact

Popular repositories Loading

  1. mangchi mangchi Public

    Agentic code-hardening plugin for Claude Code. Multi-model AI review loop -- Claude writes and decides, Codex CLI critiques one axis at a time (correctness / security / performance / readability / …

    1

  2. minwoo-data minwoo-data Public

    Main portfolio repository highlighting machine learning, optimization, and process mining projects for data-driven decision systems.

  3. walmart-sales-forecasting walmart-sales-forecasting Public

    Customer purchase amount prediction using regression and ML models in R (caret), including feature engineering and model evaluation.

    R

  4. process-mining-portfolio process-mining-portfolio Public

    Process mining & analytics portfolio: procurement workflow optimization using Python & ProDiscovery (~80%+ conformance achieved).

  5. boda boda Public

    보다 (Boda) — see your receipts. Vision OCR (Gemini→Claude) turns receipt images into structured data + Excel.

    Python

  6. career-ops career-ops Public

    Forked from career-ops-hq/career-ops

    AI-powered job search system built on Claude Code. 14 skill modes, Go dashboard, PDF generation, batch processing.

    JavaScript