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  • University of Pretoria
  • Seoul

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younghwan91/README.md

Younghwan Chae, Ph.D. · 채영환

PhD in Mechanical Engineering  —  Mathematical Optimization  ·  ML & Perception Engineer @ Doosan Robotics
Mathematical optimization is the through-line — numerical optimization, surrogate modeling & state estimation, carried from theory into 3D perception, sensor fusion, and production systems.

LinkedIn Gmail Résumé (PDF)


🧠 Background

  • 🎓 PhD in Mechanical Engineering — all degrees Cum Laude
  • 🤖 ML & Perception Engineer @ Doosan Robotics (prev. bitsensing) — 3D perception, sensor fusion & robotics AI across camera · radar · LiDAR
  • 🏭 Shipped multi-sensor perception to mass production — 200+ deployments across 8 countries, −51% fusion error · 10 patents · 6 peer-reviewed papers
  • 📈 On the side, I build a full open-source quant stack — market-data APIs, a collection pipeline, and research & backtesting engines
  • 🛰️ Every sensor, every modality — RGB/stereo/structured-light cameras, 4D imaging radar, LiDAR, IMU/GPS, point clouds & RF signals, 3D scans, video, and financial time-series; few data types I haven't shipped with

🔭 Open-source

Market-data APIs feed a collection pipeline into TimescaleDB that the research layer reads — plus a standalone crypto engine fed straight from exchange APIs.

flowchart TD
    K["🔌 kiwoom-rest-api"] --> AF
    F["🔌 krx-fundamentals-api"] --> AF
    NW["🔌 krx-news-rest-api"] --> AF
    AF["🗄️ kr-quant-airflow"] --> DB[("TimescaleDB")]
    DB --> Q["🧪 kr-quant"]
    DB --> O["🧪 opt_portfolio"]
    DB --> AT["🧪 automated-stock-<br/>trading-systems"]
    EX["🔌 Exchange APIs"] --> CR["₿ quantbox-engine<br/>backtest ↔ live"]
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Project What it is
kiwoom-rest-api Kiwoom Securities REST API wrapper — 207 endpoints + real-time WebSocket
quantbox-engine Crypto futures backtest & execution engine — zero lookahead, backtest↔live parity
kr-quant-airflow Airflow pipeline collecting Korean market data into TimescaleDB
krx-fundamentals-api Korean corporate fundamentals API (DART + KRX + Naver)
krx-news-rest-api Korean market news & disclosure collection API (FastAPI + Redis)
kr-quant KOSPI/KOSDAQ alpha research — walk-forward, trade-level distributions & random null controls enforced as guardrails
opt_portfolio VAA-based tactical asset allocation
automated-stock-trading-systems Backtester for Bensdorp's 7 non-correlated systems

🔒 Also private — equity screeners (Wyckoff accumulation · Minervini + VCP), a statistical-arbitrage crypto engine, and live trading systems. Available on request.

🛠️ Tech

Python C++ PyTorch CUDA TensorRT OpenCV pandas PostgreSQL TimescaleDB Airflow Docker

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  1. quantbox-engine quantbox-engine Public

    Strategy-agnostic crypto futures backtest & execution engine — zero lookahead, backtest↔live parity (public extract of a live trading system) · 암호화폐 선물 백테스트·실행 엔진

    Python 1

  2. opt_portfolio opt_portfolio Public

    VAA-based Portfolio Management System

    Python 2 1

  3. kiwoom-rest-api kiwoom-rest-api Public

    Python wrapper for the Kiwoom Securities REST API — 207 Korean-equity endpoints + real-time WebSocket · 키움증권 REST API Python 래퍼

    Python 9 2

  4. krx-fundamentals-api krx-fundamentals-api Public

    REST API for Korean corporate fundamentals — financial statements, valuation metrics, dividends, major shareholders, stock screening (DART + KRX + Naver) · 국내 기업 펀더멘탈 데이터 API

    Python 1 2