hkjc-football-modelGH ↗
Football over/under ML pipeline — walk-forward validated, production-deployed.
+4.408 mean log growth · 10/10 folds · 5 arXiv papers
HKU BEng Data Science & Engineering · Minor in Digital Health · Class of '27
I turn noisy signals into decisions.
XIE Jintao — Hong Kong. Production trading systems, LLM agents, and health-data models — open-source and statistically honest.
CAREER TRACE — SIGNAL LOCKED2023 → NOW
Every spike is a choice. Existence precedes essence — this line is what I chose to become.
- 2023HKU BEng start — Data Science & Engineering
- 2024Eng Recognition · HKAE pitch winner
- 2025AlGreen freelance · IIQE I & III
- 2026InsurPrime · football 10/10 folds · EEG · memory-os
- NOWOpen — quant · actuarial · AI · health-data
0Screening participantsMentalTap · zero-shot
0Sharpe ratioUS equity AFML · p=0.0033
0Mean log growthHKJC football over/under
0Top global rankInsurPrime · premiums
0Engineered featuresBTC platform · live pipeline
0Statistical testsone suite · 6 categories
Before you read the record, try the job.
Let's talkWhy I build
Existence precedes essence.
Sartre's claim — we are not born with a fixed nature; we become through what we do. These pages are the record of that becoming.
Medicine
The body, read as signal — EEG, PPG, health cohorts. The physiology of being.
Finance
The market, read as a mind — risk, edge, decision under uncertainty. Being, priced.
Arts
The signal, drawn as feeling — this artwork is the record of that.
Engineering
The making itself. To exist is to act; to act is to make.
"Man is nothing else but what he makes of himself."— Jean-Paul Sartre
"He who has a why to live for can bear almost any how."— Friedrich Nietzsche
Engineering makes innovation. Innovation makes impact.
The career trace is my answer — not a summary of what I am, but the record of what I chose to become.
The signal
One operator, four channels.
Pick a channel — it plays live. Every claim is on the record, linked to the open-source work that backs it.
Recorded instruments
us_stock_fundamentalGH ↗
AFML factor strategy for the S&P 500 — weekly rebalancing, VIX regime switching.
Sharpe 1.77 · p=0.0033 · significant excess return
EKFDMD_trading_BinanceGH ↗
End-to-end live BTC trading platform — ingestion to live execution, 4 exchange markets.
170+ features · 20+ statistical tests · 30-second decision loop
memory-osGH ↗
Hierarchical memory system for LLM agents — cognitive-science-inspired consolidation.
hot · warm · cold · hybrid retrieval scoring
HKJC_Horse_v2GH ↗
Benter-style exotic-pool model — win odds fused with fundamentals, robust Kelly sizing.
Harville / Plackett-Luce · q05 Kelly
alphagen_cryptoGH ↗
Reinforcement-learning discovery of formulaic alpha factors for crypto.
RL-generated · formulaic alpha
All projects on github.com/jintaoxie02 — every one open-source and documented. ↗
The proof
Validated, not vibes.
Every number on this page is from a real, open-source project. The chart is the walk-forward record — 10 out-of-sample folds, every one profitable.
OUT-OF-SAMPLE VALIDATION · 10 FOLDS10 / 10 PROFITABLE
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hkjc-football-model · 16,886 matches · 113 leagues · +4.408 mean log growth · 5 arXiv papers implemented.
0Matches validated113 leagues · all folds profitable
0Folds profitablewalk-forward · out-of-sample
0arXiv papers implementedprobability · calibration
0Open-source reposall documented
The index
Skills, mapped to the proof.
Search or click any skill — every project that uses it, with the evidence and the repo.
No matches on the record. Try "python", "Kelly", or "walk-forward".
Ask the record
Interview this site.
Ask a question and get an answer grounded in my own verified record — answered live by an AI model, with on-page retrieval as a fallback.
ASK · GROUNDED IN THE RECORDlive AI answer
Hi — I'm an assistant over XIE Jintao's verified record. Ask about projects, exams, skills, or availability. answers are grounded in the record · live AI when configured, on-page retrieval otherwise
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The paper trail
Credentials, in writing.
Education
2023 – 2027BEng Data Science & Engineering, Minor in Digital Health
The University of Hong Kong · Year 4, graduating 2027
The University of Hong Kong · Year 4, graduating 2027
Experience
Jan 2026 – nowResearch — EEG computational psychiatry
HKU Innovation Wing, Faculty of Engineering
HKU Innovation Wing, Faculty of Engineering
Jul – Sep 2025Programmer (Freelance) — AlGreen
Arduino · ESP32 control software · Hong Kong
Arduino · ESP32 control software · Hong Kong
Awards
2024 – 25Winner — HKAE Pitch Competition
2024 – 25HKU Engineering Recognition Ceremony
Credentials
SOA Exam PProbability · passed · Nov 2020
IIQE Paper IPrinciples & Practice of Insurance · Sep 2025
IIQE Paper IIILong Term Insurance · Sep 2025
Skills
LanguagesPython (primary) · R · SQL · TypeScript
ML & statsPyTorch · scikit-learn · LightGBM · XGBoost · CatBoost · statsmodels
AI & agentsLangChain · ChromaDB · Next.js · RAG · function calling
InfraDuckDB · ccxt · Git · GitHub Actions · Telegram
Languages
SpokenCantonese (native) · Mandarin (native) · English (fluent)
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