Calvin Fei
Machine Learning Engineer II, Annapurna ML at Amazon Web Services (AWS)
Cupertino, California, United States
Summary
👤
Senior🎓
Top SchoolCalvin Fei is a Machine Learning Engineer II at AWS Annapurna Labs with nine years of experience building and optimizing large-scale LLM inference systems for specialized accelerators like Trainium and Inferentia. He combines a Cornell CS master’s background with hands-on kernel and accelerator work—CUDA, Triton, C/C++—to squeeze latency, throughput, and memory efficiency out of production workloads. Calvin partners with strategic customers to port PyTorch models, prototype benchmarking pipelines, and collaborate across compiler and hardware teams to diagnose real-world bottlenecks. His expertise spans the full LLM stack from KV-cache and speculative decoding strategies to tensor-core-aware kernel tuning and distributed inference orchestration. Prior to AWS he led LLM research and agentic workflow efforts at InfiniteScene.ai, giving him a rare mix of model-research intuition and systems-first optimization skills. Based in Cupertino, he’s quietly focused on bridging model architectures, ML systems software, and next-generation AI compute platforms to make high-performance inference practical at scale.
9 years of coding experience
Master's degree, Computer Science, Master's degree, Computer Science at Cornell University
Chinese, English
Stackoverflow
63reputation
202reached
6answers
4questions
Github Skills (50)
editor9
microsoft9
electron9
visual-studio-code9
vscode-extension9
typescript9
visual-studio9
mute9
telegram9
vscode9
static-site8
agora8
ios7
ghost7
jekyll7
Programming languages (5)
Github contributions (5)
SepCode/CF_Circle
Feb 2017 - Sep 2018
Contributions:2 commits, 2 pushes, 1 branch in 1 year 7 months
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