Zhongkai Zhao
Machine Learning System Engineer at ByteDance
Shanghai, Shanghai, China
Summary
🤩
Rockstar🎓
Top SchoolZhongkai Zhao is a machine learning systems engineer with seven years of experience focusing on efficient training and inference for video generation models. Currently at ByteDance and pursuing a Master of Computing (AI) at the National University of Singapore, he blends production ML engineering with rigorous academic research. His papers have appeared in top venues (FSE 2023, BMVC oral, and co-authored OOPSLA 2025), reflecting strengths at the intersection of systems and research. A top-ranked graduate from Tongji University and a visiting student at UC Berkeley, he brings strong theoretical grounding and practical optimization skills. He has moved between research labs and high-throughput industry environments, delivering ML systems work that scales to real-world video workloads. Known internally as "mlsys" on GitHub, he combines low-level systems thinking with applied ML to speed up model turnaround.
7 years of coding experience
3 years of employment as a software developer
Visiting Student, 4.0 / 4.0, Visiting Student, 4.0 / 4.0 at University of California, BerkeleyBachelor's degree, Computer Science, 4.78 / 5.0 (Achieved 5.0 for three consecutive semesters, Overall rank: 1 / 120), Bachelor's degree, Computer Science, 4.78 / 5.0 (Achieved 5.0 for three consecutive semesters, Overall rank: 1 / 120) at Tongji UniversityMaster of Science - MS, Master of Computing, AI Specialization, Master of Science - MS, Master of Computing, AI Specialization at National University of Singapore
Github Skills (35)
transformers10
pytorch10
python10
machine-learning-models10
machine-learning10
inference10
hpc10
multimodal10
large-scale10
distributed-computing10
llm10
audio10
data-parallelism10
deep-learning10
ai10
Programming languages (2)
Github contributions (5)
KKZ20/ColossalAI
Sep 2023 - Apr 2024
Making large AI models cheaper, faster and more accessible
Contributions:10 PRs, 113 pushes, 16 branches in 6 months
ai
KKZ20/C-compiler
Apr 2021 - Jun 2021
Contributions:15 commits in 2 months
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