Jae Lim
Principal Software Engineer at Microsoft
Bellevue, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolJae Lim is a Principal Software Engineer based in Bellevue with over 20 years in the software industry and more than a decade building production-grade, object-oriented systems across mobile, desktop, server, VM and cloud environments. Currently driving Microsoft Teams on Android, he blends legacy Java support with modern Kotlin and test-driven development while mentoring engineers and shaping reusable UI/UX architectures. His background spans SDK design and CI/CD automation for Microsoft App Center (notably contributing iOS and .NET build/config automation), billing systems at GitHub, and high-performance search and telephony platforms early in his career. Comfortable across C/C++/C#/Java/Swift and cloud-native microservices, he pairs deep implementation skills with a history of teaching software engineering at the university level. Known for pragmatic refactors and build-system improvements, he often operates at the intersection of developer experience, automation, and reliable client SDKs.
9 years of coding experience
12 years of employment as a software developer
MS Computer Science, MS Computer Science at Yonsei University
English, Korean
Github Skills (19)
unit-testing10
objective-c10
ios10
react-native10
cicd10
build-automation10
powershell10
cocoapods10
appcenter10
test-automation10
macos9
swift9
githubaction-workflow8
javascript8
github-ci8
Programming languages (7)
Github contributions (5)
microsoft/appcenter-sdk-apple
Sep 2016 - Mar 2020
Development repository for the App Center SDK for iOS, macOS and tvOS.
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:2703 commits, 1650 PRs, 1785 pushes in 3 years 6 months
Contributions summary:Jae's contributions primarily focused on enhancing the App Center SDK for iOS, macOS, and tvOS. They were actively involved in the refactoring of existing code, merging branches and integrating code changes, and writing and updating unit tests to ensure the stability and correctness of the SDK. Their work covered areas such as adjusting code to work on iPads, improving authentication flows, and setting up and managing the CI/CD pipeline with build automation tools.
app-centercenteranalyticsleancloudtvos
microsoft/appcenter-sdk-dotnet
Oct 2016 - Mar 2020
Development repository for the App Center SDK for .NET platforms, including Xamarin
Role in this project:DevOps Engineer
DevOps EngineerContributions:91 commits, 28 PRs, 62 pushes in 3 years 4 months
Contributions summary:Jae's contributions primarily revolve around the build process and related infrastructure within the .NET App Center SDK repository. The commits show modifications to build scripts (build.ps1, build.cake, and build.sh), indicating a focus on automating the build and packaging procedures for different platforms. The user also made changes related to dependencies and frameworks which impacted how builds are created and executed, thus reflecting a strong emphasis on continuous integration and deployment.
app-centerdotnetuwpcenterplatforms
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