Sergey Maranchuk
Senior Python Developer at Zojax Group
Ukraine
Summary
👤
SeniorSergey Maranchuk is a Senior Python Developer with 17 years of experience building web and backend systems across Linux and Windows environments. He combines deep Python and C expertise with practical knowledge of web frameworks (Django, Pyramid), web servers, and databases including MySQL, PostgreSQL and Sybase, gained through roles at Zojax Group, Mokus.io and a long tenure as a senior sysadmin at PrivatBank. Sergey contributes to notable open-source projects such as Pyramid and the Mezzanine ecommerce cartridge, where he has fixed critical bugs, modernized code for Python 3 compatibility, and improved payment and shipping integrations. Comfortable across the stack, he also brings low-level protocol and security experience (HTTP(S), SOCKS, pentesting) and GUI toolkit work, making him effective at solving cross-domain integration challenges. Based in Ukraine, he is pragmatic, detail-oriented, and adept at modernizing legacy systems while shipping reliable production software.
17 years of coding experience
11 years of employment as a software developer
English, Russian
Stackoverflow
3,736reputation
2.7mreached
25answers
0questions
linux
top-5%
multithreading
top-5%
Github Skills (22)
unit-testing10
paypal10
python10
ecommerce10
django10
testing10
payment-integration10
unit-test10
ubuntu9
multithreading9
linux9
refactoring9
documentation8
ordereddict8
javascript7
Programming languages (10)
Github contributions (5)
Pylons/pyramid
Apr 2020 - Dec 2021
Pyramid - A Python web framework
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 reviews, 10 commits, 6 PRs in 1 year 8 months
Contributions summary:Sergey contributed to the Pyramid web framework by addressing various code issues and implementing improvements. Their work involved fixing bugs, refactoring code, and enhancing the framework's internal functionality. The user also focused on modernizing the code, such as removing unnecessary inheritances and updating deprecated methods. Furthermore, the user made changes to documentation and project structure, including migrating the IRC channel.
pythonpyramidpython-webframeworkpylons
stephenmcd/cartridge
May 2014 - Jul 2015
Ecommerce for Mezzanine
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits, 3 PRs, 4 comments in 1 year 2 months
Contributions summary:Sergey contributed to the project by fixing bugs and making improvements to the e-commerce platform. Their work included resolving quoting issues within the PayPal backend, ensuring compatibility with Python 3 in the Authorize.net integration, and removing deprecated code. Furthermore, the user made strategic changes by integrating `OrderedDict` to the codebase for improved data handling and ensuring that the shipping fields are working correctly.
ecommercemezzaninejavascriptnodejsbitbake
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