Sergey Barbushin

United Kingdom

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Summary

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Rockstar

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Top School

Sergey Barbushin is a tech lead and architect with 13 years of experience building high‑load, failover‑ready web platforms and APIs, from payment aggregators and booking services to cryptocurrency exchanges and social networks. He consistently translates vague product requirements into robust technical specs and has hands‑on experience driving teams, CI/CD and AWS auto‑scaling environments while covering core services with extensive unit tests. A prolific open‑source maintainer, Sergey leads and hardens PHP libraries like php-imap and php-console and has contributed bug fixes and quality improvements to Matomo. He blends deep backend engineering, database/search optimizations and infrastructure automation with practical product delivery, often stepping in to design and implement features when product management is lacking. Based in the UK with an applied mathematics background, he’s particularly passionate about automation, failover strategies and pragmatic microservice design.

13 years of coding experience

15 years of employment as a software developer

BC, Applied Mathematic and Process Control, BC, Applied Mathematic and Process Control at Saint Petersburg State University

English, Russian, poland

Stackoverflow

Stats

5,235reputation

2.8mreached

44answers

13questions

Badges

mysql

top-5%

php

top-5%

recursion

top-1%

Github Skills (22)

back-end-development10

filehandle10

imap10

analytics10

refactor10

recursion10

php10

attachment10

file-handling10

refactoring10

mysql9

testing9

debug9

e-mail9

privacy8

Programming languages (7)

C#TypeScriptMakefileJavaScriptGoPHPRuby

Github contributions (5)

barbushin/php-console

Oct 2013 - Sep 2019

Handle PHP errors, dump variables, execute PHP code remotely in Google Chrome

Role in this project:

Back-end Developer

Contributions:7 releases, 115 commits, 15 PRs in 5 years 11 months

Contributions summary:Sergey focused on improving the PHP Console library. Their contributions included adding an adapter for backward compatibility with older versions, introducing a new file storage option, and fixing multiple issues related to session handling and command-line mode detection. Furthermore, the user addressed encoding conversion problems and made code style adjustments. These changes aimed to improve the library's functionality, compatibility, and stability.

phpremotelydump-variableschromegoogle-chrome

barbushin/php-imap

Dec 2012 - Sep 2019

Manage mailboxes, filter/get/delete emails in PHP (supports IMAP/POP3/NNTP)

Role in this project:

Back-end Developer

Contributions:29 releases, 148 commits, 77 PRs in 6 years 10 months

Contributions summary:Sergey primarily focused on maintaining and enhancing the `php-imap` library, a PHP library designed for managing mailboxes. Their contributions include fixing bugs related to attachments, encoding issues, and handling of mail headers. They refactored code, optimized memory usage, and added new functionalities to improve the overall robustness and usability of the library. The user's work also included addressing specific issues and implementing enhancements to the core IMAP functionalities.

mailboxesmailsmtpphpemail

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