David Xu
Chief Technology Officer at Toptal
Denver, Colorado, United States
Summary
👤
Senior🎓
Top SchoolDavid Xu is a seasoned technology executive and hands-on CTO with 11+ years building scalable, cloud-native platforms and SaaS products, currently leading WhereTo from Denver. He combines deep engineering chops across Node.js, TypeScript, Go, Scala, C/C++ and mobile (iOS/Android/React Native) with operational expertise in AWS, Docker, and large-scale data stacks. A former competitive programmer with ACM‑ICPC and AIOC medals, he brings rigorous algorithmic thinking to product and infrastructure decisions. David has founded and led multiple startups and consultancies, shipping resilient systems for millions of users and guiding teams from prototype to acquisition. Outside work he’s a pragmatic tinkerer who stays active—often walking his dogs Chickita and Banana—bringing the same discipline to fitness as to systems design.
11 years of coding experience
12 years of employment as a software developer
Incomplete Bachelor's Degree (Dropped Out) Computer Science, Incomplete Bachelor's Degree (Dropped Out) Computer Science at The University of Western AustraliaDuncraig Senior High School
Chinese, English, javascript, c++, go, python, rust, swift, java, scala, kotlin
Github Skills (150)
windows10
bottomsheetbehavior10
loopback10
bundler10
google-maps10
floatingactionbutton10
javascript10
nestedscrollview10
linux10
compiler10
js10
soap-client10
json10
cross-platform10
rocket10
Programming languages (11)
Github contributions (5)
bgdavidx/node-protobuf
Dec 2018 - Sep 2019
Google Protocol Buffers wrapper for Node.js
Contributions:8 commits, 4 PRs, 15 pushes in 9 months
protocol-buffersgoogle-protocol-buffersprotobufnode-jsbuffers
wherefortravel/minhash-node-rs
Apr 2019 - Sep 2021
MinHash and LSH index written in Rust for Node.js
Contributions:1 release, 8 commits, 5 pushes in 2 years 5 months
clilshminhashindexnode-js
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