Alexander Zaitsev
Staff Software Engineer at N-able
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolAlexander Zaitsev is a Staff Software Engineer based in Warsaw with 12 years of experience building resilient, production-grade backend and observability systems. He blends hands-on backend development, DevOps, and security-minded architecture to prevent supply-chain and operational incidents—"SolarWinds-like" risks are a particular focus. His open-source contributions include performance and reliability work on Vector (observability pipeline) and practical enhancements to projects like Tesseract OCR and zip-rs, showing attention to both infrastructure and low-level code quality. Having served as CTO and solution architect roles, he pairs strategic leadership with code-level execution across cloud-native stacks. Trained in physics, mathematics and software development, he brings a methodical, systems-thinking approach to hard reliability problems and observability engineering.
12 years of coding experience
9 years of employment as a software developer
Physics & Mathematics, Physics & Mathematics at Брестский областной лицей им. П.М. МашероваБакалавр, Разработка программного обеспечения, Бакалавр, Разработка программного обеспечения at Белорусский государственный технологический университет
Russian, English
Stackoverflow
31reputation
1kreached
0answers
2questions
Github Skills (36)
c-language10
observability10
qt10
back-end-development10
compress10
ocr10
prometheus10
ocra10
cplus10
compression10
error-handling10
rust10
cpp10
cprogramming-language10
pulsar9
Programming languages (38)
Github contributions (5)
zip-rs/zip-old
Oct 2020 - Jan 2023
Zip implementation in Rust
Role in this project:
Back-end Developer
Back-end DeveloperContributions:32 reviews, 69 commits, 57 PRs in 2 years 3 months
Contributions summary:Alexander primarily contributed to the `zip-rs/zip-old` repository by implementing features and fixing bugs related to the ZIP file format. Their work included adding Zstandard compression support, improving error handling, and addressing Clippy warnings to enhance code quality. They also focused on improving the time-related features, ensuring proper bounds checking, and fixing various issues within the codebase. These changes involved modifications to core functionalities such as reading and writing ZIP archives.
rust
manisandro/gImageReader
Oct 2017 - Mar 2018
A Gtk/Qt front-end to tesseract-ocr.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:69 commits, 19 PRs, 91 pushes in 5 months
Contributions summary:Alexander primarily refactored and improved the Qt-based front-end of the `gimagereader` repository. Their work involved replacing deprecated Qt functions with standard C++ equivalents, adding support for DJVU documents, and introducing features like encrypted PDF handling and PDF version selection. Further contributions included code refactoring, improved error messaging, and enhancements to the PDF export functionality, demonstrating a focus on code quality and user experience.
frontendgtkocrqttesseract
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