Work

Building the machinery behind intelligence.

9 years across consumer AI, post-training, and agentic infrastructure.

Post-training & alignmentAgentic systems & tool useEvaluation infrastructureSynthetic data pipelines3 US patents1B+ device scale

Career Trajectory

Apple

Senior ML Engineer

2024 –

Siri Core Modeling

Post-training loops, agentic execution, red-teaming, meta-prompting self-improvement, and the eval regimes that decide what ships to a billion devices.

ML Engineer II

2021 – 2024

Agentic Reasoning & Planning

Tool retrieval and the synthetic-data loops that became Apple Intelligence. Forecasting that smooths every iOS update; predictive display control that fires on every Always-On Display screen lock.

ML Engineer

2020 – 2021

CoreOS

Privacy-preserving on-device ML that runs every time an iPhone charges. Background scheduling that unlocked ProRes video on iPhone 13 Pro and Pro Max.

Before That

Game Software Engineer Intern

2019

Tencent Holdings Ltd.

Unity editor tools for titles with 2M+ DAU.

Research Assistant

2017 – 2019

HKU

Four labs in two years: legal-AI for criminal sentencing, VR cities for navigation cognition, persistent-memory systems, Bayesian sleep models.

Technology Analyst

2018

J.P. Morgan

Monitoring infra and an LSTM alerting model for predictive alerts.

Data Analyst Intern

2017

CLP Power Hong Kong

ARIMAX over three years of grid data. Cable-fault anomaly detection across 14 districts. Dashboards 2,400 field engineers actually opened.

“ Do the difficult while it is easy; do the great while it is small. ” — Lao Tzu