Yi Liu
Shanghai, China
Summary
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RockstarYi Liu is a Principal Data and Applied Scientist Manager at Microsoft in Shanghai with 16+ years of experience building search, ranking, and NLP systems across Bing Ads and core Bing relevance teams. He combines deep research roots in information retrieval with hands-on engineering, having progressed from research software engineer to principal leader while shipping ranking signals, prediction models and ad relevance features. Yi leads teams that bridge ML research and production systems, focusing on rich ads and NLP-driven relevance for large-scale search products. He is also an active backend contributor to high-profile open-source work such as the Azure SDK for Java, improving AAD authentication and B2C support for Spring Boot integrations. Known for turning IR research into robust, test-covered production code, he brings a pragmatic balance of scientific rigor and engineering discipline.
6 years of coding experience
Github Skills (10)
javas10
azuread10
authentication10
active-directory10
azure-active-directory10
authorization10
java10
spring-boot10
auth10
unit-testing9
Programming languages (12)
Github contributions (5)
Azure/azure-sdk-for-java
May 2020 - Jan 2023
This repository is for active development of the Azure SDK for Java. For consumers of the SDK we recommend visiting our public developer docs at https://docs.microsoft.com/java/azure/ or our versioned developer docs at https://azure.github.io/azure-sdk-for-java.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 417 reviews, 207 commits in 2 years 8 months
Contributions summary:Yi's commits primarily revolve around modifications within the `azure-sdk-for-java` repository, specifically related to the Spring Boot AAD integration. The commits focus on enhancing the AAD authentication filter by addressing authentication issues, and also migrating and expanding support for AAD B2C scenarios. The changes involve Java code modification and test code updates to improve the functionality and test coverage of Azure Active Directory integration within Spring Boot applications.
azureazure-sdkjavaazure-servicesazure-resources
Azure-Samples/java-migration-copilot-samples
Mar 2025 - Feb 2026
Sample projects that can be used to demonstrate the Java migration Copilot extension.
Contributions:5 reviews, 33 PRs, 52 pushes in 11 months
java
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