Kefei Lu
Software Engineer at Facebook
Greater Seattle Area United States
Summary
🤩
RockstarKefei Lu is a software engineer with 13 years of experience building scalable machine learning and data solutions, currently based in the Greater Seattle Area and working at Facebook. He combines backend engineering and ML engineering expertise to optimize model compilation and runtime performance for production systems. Notably, his open-source contributions to PyTorch’s AOT inductor focus on compile-time improvements, bug fixes, and caching stability—work that directly improves deployment efficiency for GPU-accelerated models. He excels at bridging low-level performance optimization with higher-level data and ML workflows. Colleagues describe him as pragmatic and detail-oriented, with a track record of turning complex compiler and runtime issues into reliable, production-ready fixes.
13 years of coding experience
Stackoverflow
17,480reputation
5.7mreached
42answers
52questions
windows
top-5%
linq
top-5%
xml
top-5%
python
top-5%
delegates
top-5%
javascript
top-5%
Github Skills (41)
code-optimization10
pytorch10
python10
machine-learning10
deeplearning-ai10
deep-learning10
aot10
compile10
autograd10
compiler10
nodejs10
induction10
linq9
debug9
javascript9
Programming languages (23)
Github contributions (5)
pytorch/pytorch
Aug 2021 - Feb 2022
Tensors and Dynamic neural networks in Python with strong GPU acceleration
Role in this project:
ML Engineer & Backend Developer
ML Engineer & Backend DeveloperContributions:11 reviews, 18 commits, 52 PRs in 5 months
Contributions summary:Kefei primarily contributed to the AOT (Ahead-of-Time) inductor within the PyTorch framework, focusing on optimizations and bug fixes related to code compilation and execution. Their work includes addressing errors in the inductor interface, enhancing code generation, improving compile time performance, and fixing caching issues. The contributions directly impact the efficiency and stability of PyTorch's AOT compiler, which is crucial for model deployment and performance improvements.
pythongpu-accelerationdeep-learninggpunumpy
kflu/multiplexer
May 2016 - Dec 2020
Sharing a server TCP connection between multiple clients
Contributions:1 release, 43 commits, 38 pushes in 4 years 7 months
tcp-servertcp-connectionsharingconnectionudp
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.