Andrey Zhadchenko
Software Engineer at Virtuozzo
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolAndrey Zhadchenko is a software engineer with a decade of experience specializing in Linux, virtualization, and embedded graphics stacks. Currently at Virtuozzo, he works on QEMU/KVM IO performance and backup solutions for containers and VMs, and previously contributed to a company fork of CRIU and upstream Linux kernel features for container functionality. His background includes porting X11 and adapting DRM/device-tree/Mesa layers for a custom SoC GPU at SRISA RAS, and earlier research on malware detection at Acronis. A frequent open-source contributor, he has fixed bugs and added tests to the widely used CRIU checkpoint/restore project, improving socket handling and filesystem correctness. Based in Berlin with an M.S. from MIPT, he combines system-level rigor with practical experience across kernel, userland, and embedded environments. Notably, he has experience spanning both low-level kernel drivers and higher-level virtualization orchestration—bridging gaps few engineers do.
10 years of coding experience
6 years of employment as a software developer
Master's degree, Applied mathematics and physics, Master's degree, Applied mathematics and physics at Moscow Institute of Physics and Technology (State University) (MIPT)
Github Skills (12)
c1710
linux10
container10
socket10
criu10
filesystem10
checkpoint10
recover10
re-store10
c1110
checkpointing10
testing8
Programming languages (2)
Github contributions (5)
checkpoint-restore/criu
Jul 2020 - Mar 2022
Checkpoint/Restore tool
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 review, 12 commits, 4 PRs in 1 year 9 months
Contributions summary:Andrey primarily contributed to the CRIU project by fixing bugs and implementing new features related to checkpoint/restore functionality. Their work included addressing issues in socket handling, specifically fixing malloc size and improving socket filter implementation. The user also added new test cases for the ZDTM testing framework, focusing on unix sockets and file operations. Furthermore, they refactored code related to file system operations, ensuring correct path handling during the checkpoint/restore process.
containerszero-downtimesuspendcheckpointcriu
azhadchenko/criu
Jul 2020 - Apr 2022
Checkpoint/Restore tool
Contributions:4 PRs, 21 pushes, 4 branches in 1 year 9 months
checkpointrestore
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