Andrii Leonov
Backend Engineer at AMO
Lower Silesian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolAndrii Leonov is a backend engineer with a decade of experience building everything from small business sites to high-traffic applications used by millions. As a core team member in pdfFiller at airSlate and now at AMO, he focuses on feature delivery, cost optimization, and stabilizing complex systems while working across PHP, Lua, SQL, and containerized cloud platforms. He has driven measurable efficiencies—upgrading PHP 7→8, cutting inter-service traffic by 20%, trimming code by 5%, and reducing DB footprint by 4%—and has integrated major APIs (Google, Facebook, Amazon) and 20+ payment providers. Comfortable with CI/CD, Kubernetes, and cross-repo platform work, he routinely supports and modernizes large codebases and automation pipelines. With a Master’s in Artificial Intelligence Systems and hands-on freelance roots, he combines algorithmic training with practical product delivery and an eye for cost-conscious engineering.
10 years of coding experience
11 years of employment as a software developer
Master's degree, Artificial Intelligence Systems, Master's degree, Artificial Intelligence Systems at Donetsk National Technical University
Ukrainian, English, Russian
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (20)
backend9
queue8
redis7
lua7
php6
uploading6
fill4
drive4
google4
api4
dropbox3
laravel-package3
signature3
onedrive3
laravel3
Programming languages (1)
Github contributions (5)
pdffiller/clouduploader-sdk
Jun 2020 - Mar 2023
Library for uploading files to GoogleDrive, OneDrive, Box, DropBox
Contributions:1 release, 5 PRs, 6 pushes in 2 years 8 months
dropboxgoogledriveboxgoogleonedrive
Slatch/AwsStatisticParserPublic
Apr 2024 - May 2024
Contributions:58 pushes, 4 branches in 1 month
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