Fengkai Liu
Senior Infrastructure Engineer at 字节跳动
Beijing, United States
Summary
👤
Senior🎓
Top SchoolFengkai Liu is a Senior Infrastructure Engineer with 13 years of experience specializing in compilers, backend infrastructure, and distributed storage/database systems. Based in Beijing and currently at ByteDance, he has driven compiler and VM innovations for Dart and Flutter—designing a TransformerTemplate pipeline, cross-version syntax compatibility, and a compile-time AOP hook that are used across 20+ internal teams. His work spans app rendering frameworks, dynamicization that runs arbitrary Dart programs under AOT, and static optimization for C#/Unity builds, demonstrating both low-level VM expertise and practical production impact. Early roles at Alibaba and Dashbase sharpened his focus on high-performance expression engines and log/index search proxies, and he has contributed fixes and optimizations back to the open-source Dart VM. Not obvious from titles alone: he blends systems-level compiler design with product-facing infra, repeatedly turning research-grade techniques into widely adopted engineering solutions.
13 years of coding experience
7 years of employment as a software developer
本科生, 软件工程, 本科生, 软件工程 at 大连理工大学
Chinese, Chinese
Github Skills (43)
nextjs10
notion10
react10
docker-image9
fabric9
subnet9
docker8
network8
coredns8
markdown8
kubernetes7
wechat7
flannel7
vercel7
go6
Programming languages (5)
Github contributions (5)
KDF5000/kdf5000.github.io
Jul 2015 - Dec 2020
Contributions:299 pushes, 2 branches in 5 years 5 months
KDF5000/ICTAuth
Nov 2016 - Mar 2018
Contributions:11 commits, 7 pushes, 2 branches in 1 year 4 months
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