Jeffrey Robinson
Principal Software Engineer at Microsoft
Lake Stevens, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolJeffrey Robinson is a Principal Software Engineer at Microsoft with 11 years of experience building and optimizing cloud and edge infrastructure, currently focused on Azure Edge. He brings deep systems and performance expertise demonstrated by impactful contributions to flagship .NET projects like MSBuild and Roslyn, where he reduced memory allocations, improved thread-safety, and refactored core components for maintainability. His trajectory through Azure Stack and compute resource providers to a principal role reflects strong domain knowledge in distributed compute and platform reliability. Jeffrey pairs a rigorous academic background in computer science (including PhD work) with practical production experience, and quietly strengthens developer tooling that powers large-scale .NET builds and compiles. Located in Lake Stevens, WA, he blends research-level problem solving with hands-on optimization that yields measurable performance and stability improvements.
11 years of coding experience
6 years of employment as a software developer
MS Computer Science, MS Computer Science at Armstrong State UniversityDoctor of Philosophy (Ph.D.) Computer Science, Doctor of Philosophy (Ph.D.) Computer Science at The University of Alabama
Github Skills (16)
net10
asp-net10
build210
dotnet10
roslyn10
csharp10
performance-optimization10
multithreading10
msbuild10
dotnet-core10
compiler-design9
language-features8
language-extensions8
language-ext8
visual-studio7
Programming languages (6)
Github contributions (5)
dotnet/msbuild
Jul 2022 - Jul 2023
The Microsoft Build Engine (MSBuild) is the build platform for .NET and Visual Studio.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 reviews, 3 PRs, 20 comments in 1 year
Contributions summary:Jeffrey focused on optimizing and refactoring the Microsoft Build Engine (MSBuild) code, specifically within the logging and task factory components. Contributions include optimizing string handling to reduce allocations and improve performance, as well as refactoring to enhance maintainability and code generation. The user also addressed multi-threading issues within the TaskFactoryWrapper, ensuring thread-safe access to internal data structures. These changes directly impact the performance and stability of the build process.
dotnetbuild-enginesqfmsbuildcsharp
dotnet/roslyn
Nov 2020 - Nov 2024
The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
Role in this project:Back-end Developer
Back-end DeveloperContributions:13 reviews, 3 PRs, 13 comments in 4 years 1 month
Contributions summary:Jeffrey focused on optimizing and improving the performance of the Roslyn compiler. Their contributions involved reducing memory allocations in core components such as `ArrayBuilder` and `MergedNamespaceSymbol`. They also addressed inefficiencies by updating the code to import a solution service once instead of querying it repeatedly, contributing to improved efficiency. Furthermore, they added and refined test utilities by adding a stub of `IVsService_SVsSolution`, demonstrating a focus on testability.
roslyndotnetf-sharpcompilervisual-basic
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