Building What Matters, Powered by AI.
Hi, I'm Harold. I view technology not as a moat or a barrier, but as a wrench to fix what's broken. I use AI to automate the repetitive, allowing me to focus on solving my own challenges—and then helping those facing the same problems.
Instead of narrowing cognitive gaps in large hierarchies, I choose to spend my energy on rapid creation and crafting
seamless experiences.
TOEFLAIR
Your AI-powered TOEFL speaking tutor. Practice anytime, anywhere with real-time feedback and scoring based on official rubrics.
RedActFlow
AI-powered PDF redaction platform. Detect sensitive data automatically, review with human-in-the-loop, and redact with precision.
ByteDanceByteDance
TikTok
PlaudPlaud · AI Agent Engineer2025.07 · Beijing
Building developer platform, voice agents, and vertical industry Agent solutions.
TikTok · Backend Engineer · Global Live2024.05 · Singapore
Global LIVE infrastructure iteration, maintenance, and performance optimization.
2023.09 · Singapore
National University of Singapore, Class of 2024.
ByteDance · Backend Engineer · E-Commerce Marketing2021.10 · Shanghai
Interactive marketing systems and campaign delivery platform.
ByteDance · Backend Engineer · Education2020.10 · Beijing
Building and iterating account systems and user information infrastructure.
2016.09 · Beijing
Beijing University of Posts and Telecommunications, Class of 2020.
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