Anton Lapounov
Senior Software Development Engineer at Microsoft
Kirkland, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolAnton Lapounov is a Senior Software Development Engineer with 10+ years focused on runtimes, compilers, and low-level performance engineering at Microsoft, where he contributes to .NET, .NET Native and ahead-of-time toolchains. With an MS in Mathematics and Computer Algebra from MSU, he brings a formal, algorithmic approach to real-world systems like CoreRT and crossgen2, including ARM64 support and GC/locking optimizations. He has a track record of fixing subtle runtime issues—GC heap corruption, exception-allocation avoidance, and debugger integration—while also improving assembly-level and platform-specific code. Based in Kirkland, WA, Anton combines deep theoretical training with hands-on assembly and systems work, making him a go-to engineer for squeezing predictable performance out of complex managed runtimes.
10 years of coding experience
Кировский физико-математический лицей (школа №35)Lomonosov Moscow State University
Github Skills (23)
arcgisruntime10
runtimes10
multithreading10
net10
locking10
run-time10
dotnet10
collector10
asp-net10
low-level-programming10
code-generation10
garbage10
dotnet-core10
arm10
g10
Programming languages (7)
Github contributions (5)
dotnet/corert
Jan 2016 - Jun 2020
This repo contains CoreRT, an experimental .NET Core runtime optimized for AOT (ahead of time compilation) scenarios, with the accompanying compiler toolchain.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:64 commits, 10 PRs, 3 pushes in 4 years 5 months
Contributions summary:Anton contributed to the CoreRT runtime, focusing on low-level aspects of the .NET environment. Their work involved modifications to GC info format, ARM architecture-specific assembly macros, and the system library used to build MRT100.dll. The user also made improvements to lock performance and debug code for ICorDebugThread4::GetBlockingObjects support. Additionally, the user addressed code quality issues like fixing typos and avoiding allocations while handling exceptions.
dotnetcompilationahead-of-timeruntimetoolchain
dotnet/runtime
Nov 2016 - Sep 2022
.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
Role in this project:Back-end Developer
Back-end DeveloperContributions:209 reviews, 91 commits, 151 PRs in 5 years 11 months
Contributions summary:Anton contributed to the `.NET runtime` repository by implementing and optimizing features related to cross-platform compilation and code generation, specifically focusing on the `crossgen2` tool. Their work included adding options for specifying JIT library paths and enhancing support for ARM64 architecture within the compilation process. They also addressed GC heap corruption issues and fixed issues in R2RDump.
dotnetruntimelinuxcsharpxamarin
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