Yuchen Dai - Software Engineer at Uber

Yuchen Dai

Software Engineer at Uber

San Jose, California, United States

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Summary

🤩

Rockstar

🎓

Top School

Yuchen Dai is a software engineer with 13 years of experience building high-performance networking, proxy, and distributed systems, now based in San Jose. He has driven production-facing work at Uber and Google, contributing deep Envoy and Istio expertise—authoring features like a heap profiler and filter-chain refactors and improving build/release workflows for complex C++/Bazel stacks. His background spans edge systems (Apache Traffic Server), cluster schedulers, and near-real-time analytics, reflecting a strong cross-cutting focus on performance, observability, and deployability. Comfortable across backend development and DevOps, he routinely addresses tech debt and automates build pipelines to make large projects more maintainable. Notably, his open-source contributions touch two flagship cloud-native projects (Envoy and Istio), demonstrating both low-level systems skill and collaboration in major community-driven codebases. He combines rigorous academic training from Tsinghua and Santa Clara with practical experience shipping resilient infrastructure at scale.

13 years of coding experience

10 years of employment as a software developer

Master of Engineering (M.Eng.), Computer Engineering, Master of Engineering (M.Eng.), Computer Engineering at Santa Clara University

Bachelor of Engineering (B.E.), Computer Science, Bachelor of Engineering (B.E.), Computer Science at Tsinghua University

English, Chinese

Github Skills (27)

env10

service-mesh10

kubernetes10

c-language10

envoyproxy10

proxy10

iptables10

http-proxy10

go10

bazel10

proxies10

build-automation10

kubernetes-pods10

cprogramming-language10

devops10

Programming languages (13)

SmartyJavaC++RustMakefileTeXGoHTML

Github contributions (5)

envoyproxy/envoy

Mar 2019 - Apr 2022

Cloud-native high-performance edge/middle/service proxy

Role in this project:

Back-end Developer & DevOps Engineer

Contributions:713 reviews, 130 commits, 201 PRs in 3 years 1 month

Contributions summary:Yuchen primarily focused on enhancing Envoy's functionality through code contributions. Their work involved implementing features like a heap profiler for the global admin endpoint, which required modifications to the admin's source and test files. Additionally, they made improvements to the filter chain management, including refactoring and adding support for in-place updates, preparing for the deployment of feature discovery. They also addressed various tech debt issues, such as code cleanups and fixes to improve code quality.

nanoservicesmore-catsgolangcontainersproxy

istio/proxy

Apr 2019 - Jun 2022

The Istio proxy components.

Role in this project:

Backend & DevOps Engineer

Contributions:61 reviews, 37 commits, 36 PRs in 3 years 2 months

Contributions summary:Yuchen contributed to the Istio proxy, primarily focusing on build and release processes, and the integration of external dependencies. They modified build configurations (Bazel), build scripts, and release pipelines to streamline the build process. The user also worked on integrating and managing the v8 build process within the overall build workflow, suggesting a focus on improving the proxy's compilation and deployment efficiency. Additionally, they added configurations for extensions.

sidecarproxylyft-envoydiscoveryistio

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