Yunqiu Xu
Machine Learning Engineer at TikTok
Sydney, New South Wales, Australia
Summary
👤
Senior🎓
Top SchoolYunqiu Xu is a machine learning engineer based in Sydney with 10 years of technical experience and 5+ years focused on applied ML across recommendation systems, NLP, computer vision, and cybersecurity. Currently working on Live Trust & Safety at TikTok, Yunqiu applies LLM reasoning, multi-modal models, RAG, and test-time scaling to tackle misinformation and extreme-risk moderation. Prior roles include improving relevancy and upsell/payment recommendations at Rokt and an academic track record as a UTS PhD and postdoctoral researcher with multiple publications. Comfortable bridging research and product, Yunqiu rapidly prototypes state-of-the-art ideas into scalable pipelines and communicates results to cross-functional teams. A polymath background spanning polymer chemistry to reinforcement learning hints at uncommon breadth and a persistent appetite for mastering new domains.
10 years of coding experience
6 years of employment as a software developer
Doctor of Philosophy - PhD, Polymer Chemistry and Physics, Doctor of Philosophy - PhD, Polymer Chemistry and Physics at Zhejiang UniversityMaster's degree, Information Technology, WAM 86, High Distinction, Master's degree, Information Technology, WAM 86, High Distinction at UNSW AustraliaDoctor of Philosophy - PhD, Reinforcement Learning, Natural Language Processing, and Intelligent TransportationSystem, Doctor of Philosophy - PhD, Reinforcement Learning, Natural Language Processing, and Intelligent TransportationSystem at University of Technology SydneyData61 5th International Optimisation Summer School
Chinese, English
Stackoverflow
149reputation
16kreached
0answers
6questions
Github Skills (39)
mahjong9
q-learning8
reinforcement-learning8
solve8
algorithms8
nethack8
20487
game-ai7
interaction6
openai6
neural-network6
deep-learning6
mujoco6
anaconda6
statistics6
Programming languages (5)
Github contributions (5)
YunqiuXu/UNSW
Jul 2017 - Jun 2018
Course materials
Contributions:12 commits, 11 pushes, 1 branch in 10 months
YunqiuXu/my_notes
Aug 2016 - Aug 2018
Are you afraid :D
Contributions:107 commits, 106 pushes, 1 branch in 2 years
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.