Hank Duan
Principal Software Engineer at Snowflake
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolHank Duan is a Principal Software Engineer and seasoned tech leader with 12 years of experience building petabyte-scale, high-throughput infrastructure and large distributed test platforms. He led the design and growth of Snap’s test orchestration and analytics platform from prototype to a fleet executing millions of daily tests, enabling bisection, flakiness detection, and owner attribution across hundreds of teams. Previously he architected OCI’s logging ingestion and search at Oracle and drove fleet automation at AWS EBS, demonstrating deep expertise in Kafka-based pipelines, Elasticsearch at scale, and resilient distributed systems. An early contributor and co-author of Protractor at Google, he has hands-on experience improving end-to-end test frameworks and performance tooling in major open-source projects like Angular. Based in Seattle, Hank balances technical leadership with entrepreneurship as CEO of an events platform and co-founder of a fast-food franchise, showing an uncommon mix of applied product instincts and systems-level engineering. He is known for turning ambiguous reliability problems into measurable, automated solutions that drive operational confidence.
12 years of coding experience
13 years of employment as a software developer
Bachelor’s Degree Computer Science with minor in Applied Math, Bachelor’s Degree Computer Science with minor in Applied Math at Cornell University
English, Chinese
Stackoverflow
6,014reputation
490kreached
92answers
8questions
protractor
top-1%
selenium
top-5%
selenium-webdriver
top-5%
javascript
top-5%
angularjs
top-5%
testing
top-1%
Github Skills (26)
javascript10
protractor10
firefox-webextension10
browser-extension10
testing10
typescript10
firefox-addon10
typescript-types10
web-framework10
webextension10
typescripts10
angular10
test-automation10
webdriver9
selenium9
Programming languages (7)
Github contributions (5)
angular/protractor
Apr 2014 - Dec 2015
E2E test framework for Angular apps
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:108 commits, 76 PRs, 54 pushes in 1 year 7 months
Contributions summary:Hank contributed to the Protractor testing framework for Angular applications. Their work included bug fixes related to jasmine-wd, and protractor, addressing issues related to timeout, angular-bootstrap, and navigation. The user also added a new locator `by.exactBinding` and implemented the `reduce` and `filter` functionalities for ElementArrayFinder to improve the testing framework's capabilities. They made changes to the existing tests to reflect the new functionalities and ensure the functionality worked as expected.
end-to-endtestingjavascripttest-frameworke2e-test
angular/angular
May 2015 - Jan 2016
Deliver web apps with confidence 🚀
Role in this project:Frontend Developer & Test Automation Engineer
Frontend Developer & Test Automation EngineerContributions:18 commits, 25 PRs, 3 pushes in 7 months
Contributions summary:Hank's contributions primarily focused on enhancing the testing infrastructure and supporting the Firefox extension within the Angular project. They implemented and refined end-to-end tests using Protractor, ensuring the Firefox extension functioned correctly. The user added features to the performance testing framework and resolved a flake in the existing tests, thereby enhancing the project's reliability and test coverage. The user also refactored existing test code and incorporated the latest version of the test framework.
reactjavascriptpwanodejsweb-developer
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