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Konstantin Tsoy

PROFILE

Konstantin Tsoy

Worked on core infrastructure for facebook/folly and facebook/fbthrift, focusing on cross-platform build stability, codebase hygiene, and mobile optimization. Addressed build failures in fbthrift by resolving newline discrepancies between Windows and Unix, and optimized the zlib build process to improve CI reliability using CMake and build system configuration. In folly, removed unused header dependencies and updated BUCK files to streamline builds and support maintainability. Delivered a feature enabling quic::QuicSocketAddress for mobile builds, introducing type aliasing and configuration updates to align mobile and server behaviors. Demonstrated proficiency in C++, build system management, and mobile development across multiple repositories.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

3Total
Bugs
1
Commits
3
Features
2
Lines of code
77
Activity Months3

Your Network

3848 people

Shared Repositories

836

Work History

June 2026

1 Commits • 1 Features

Jun 1, 2026

June 2026: Delivered mobile-optimized QUIC socket addressing in folly. Key feature: Activate quic::QuicSocketAddress for mobile builds by aliasing quic::SocketAddress to quic::QuicSocketAddress for mobile, updating mvfst-config-mobile.h and BUCK targets to export the new type while preserving server-style builds using folly::SocketAddress. Additional changes include updates to constants so non-ARVR mobile builds see AddressRange alias aligned with quic::SocketAddress, and introduction of QuicTypealiasesMobile.h and QuicTypealiasesSocketAddressMobile.h. ARVR/mobile config was intentionally excluded to keep Avalanche/OpenXR server QUIC code on server-safe types. Reviewed by jbeshay (D106696593).

February 2025

1 Commits • 1 Features

Feb 1, 2025

February 2025 monthly summary for facebook/folly: Focused on dependency hygiene and build cleanliness. Delivered a code cleanup by removing an unused folly/Optional.h header and updated BUCK to reflect the change. No behavioral changes introduced. Commit: 27f765a9bf34a06f7b25bf40895258212a377b24. Impact: reduces unnecessary dependencies, shortens build times, and improves maintainability, supporting safer refactors and onboarding. Technologies: C++, BUCK, header management, codebase hygiene.

October 2024

1 Commits

Oct 1, 2024

October 2024 monthly summary for facebook/fbthrift: Focused on stabilizing the OSS build across Windows and Unix platforms and optimizing dependencies. Implemented Cross-Platform FBThrift OSS Build Stabilization to address newline-induced build failures, and streamlined the zlib library build by removing unnecessary static library creation. These changes improve CI reliability, reduce time-to-build, and stabilize artifact generation. Commit reference included: 2a432900f23bd6f4111fb1b3af3d52d779ab9d9b.

Activity

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Quality Metrics

Correctness100.0%
Maintainability86.6%
Architecture86.6%
Performance86.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++CMake

Technical Skills

Build System ManagementC++ developmentCMakeCode Cleanupbuild configurationbuild system configurationcross-platform developmentmobile development

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

facebook/folly

Feb 2025 Jun 2026
2 Months active

Languages Used

C++

Technical Skills

Build System ManagementCode CleanupC++ developmentbuild configurationmobile development

facebook/fbthrift

Oct 2024 Oct 2024
1 Month active

Languages Used

C++CMake

Technical Skills

CMakebuild system configurationcross-platform development