Manish Vasani
Principal Software Engineer at Microsoft
India
Summary
🤩
Rockstar🎓
Top SchoolManish Vasani is a Principal Software Engineer with 12 years of experience largely focused on the Roslyn .NET compiler and developer tooling at Microsoft, now working on the PROSE team to bring AI/Copilot enhancements to Visual Studio. He has deep expertise in C# and VB compiler internals, developer productivity features, and telemetry-driven UI improvements, with a track record of shipping refactors, diagnostics, and background analysis enhancements that improve IDE performance and reliability. His open-source contributions to high-profile repos like dotnet/roslyn and vscode-csharp show hands-on work fixing build issues, tightening analyzer tests, and extending compiler and extension functionality. Manish combines strong academic roots—a Columbia MS in Computer Science concentrating on compilers and theory—with long-tenured Microsoft engineering and test experience dating back to VC++ and Phoenix code analysis work. He tends to surface pragmatic, testable fixes that align code quality with analyzer rules, demonstrating an engineer who balances deep technical rigor with developer ergonomics. Based in India, he brings continuity across compiler, IDE, and productivity stacks, making him a go-to technical lead for complex tooling challenges.
12 years of coding experience
17 years of employment as a software developer
SNKMS Computer Science, MS Computer Science at Columbia EngineeringBE CSE, BE CSE at RV College Of Engineering
Github Skills (21)
unit-testing10
testing10
net10
c-compiler10
dotnet-new10
dotnet10
vba10
vscode-extension10
asp-net10
code-analysis10
source-code-analysis10
dotnet-core10
compiler10
refactoring10
csharp10
Programming languages (8)
Github contributions (5)
dotnet/roslyn-analyzers
Nov 2015 - Jan 2023
Role in this project:
Back-end Developer
Back-end DeveloperContributions:34 releases, 1683 reviews, 2685 commits in 7 years 3 months
Contributions summary:Manish's commits focus on modifying tests related to code quality analyzers. They are primarily working on code refactoring, adding tests and addressing violations in code quality and other guidelines. The commits include changes to test cases that have a clear impact on the testing of the analyzer's functionality. The changes show a focus on refactoring to match the analyzer rules and ensure testability.
dotnet/roslyn
Oct 2014 - Jan 2023
The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
Role in this project:Backend Developer
Backend DeveloperContributions:1410 reviews, 2250 commits, 1897 PRs in 8 years 4 months
Contributions summary:Manish's commits primarily involve code modifications within the dotnet/roslyn repository, focusing on the .NET compiler. They've contributed to features like fixing build-related issues, adding support for features like code refactoring, and addressing issues related to diagnostic messages and error handling. These changes demonstrate a focus on improving the functionality and reliability of the C# compiler by enhancing code style features.
roslyndotnetf-sharpcompilervisual-basic
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