Sergey Kupletsky
Engineering Manager at Kaufland e-commerce
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolSergey Kupletsky is an Engineering Manager based in Berlin with ~15 years in web engineering and a strong full-stack background (React, PHP, Node.js) who balances hands-on technical depth with predictable, outcome-driven delivery. He has built and led cross-functional teams from scratch, shipping platform products like SSO/IAM, internal component libraries, and compliance tooling while improving developer experience through CI/CD, automation, and pragmatic DevSecOps. Sergey has a track record of turning monoliths into scalable microservices and optimizing costs and performance—examples include scaling a push-notification platform to millions of requests per minute and halving infrastructure spend. He treats engineering culture and developer experience as core levers for velocity, establishing skill matrices, promotion criteria, and documentation to keep delivery stable through team turnover. An active mentor and open-source contributor, he shares practical DevEx and CI/CD practices in talks and posts, and contributed early work on the material-design-iconic-font project. He combines a product mindset with data-driven decision making to help teams focus on valuable outcomes and engineer ownership.
11 years of coding experience
14 years of employment as a software developer
National University of Science and Technology "MISIS" (Moscow Institute of Steel and Alloys)
Russian, English
Stackoverflow
62reputation
4kreached
4answers
0questions
Github Skills (10)
html10
css10
ui-design9
git6
material-design6
continuous-deployment6
javascript6
firebase-cloud-messaging6
continuous-integration6
webpush6
Programming languages (11)
Github contributions (5)
zavoloklom/material-design-iconic-font
Oct 2014 - Apr 2022
Material Design Iconic Font and CSS toolkit
Role in this project:
Front-end Developer
Front-end DeveloperContributions:7 releases, 216 commits, 15 PRs in 7 years 7 months
Contributions summary:Sergey appears to have been involved in the initial setup and development of the project, creating essential files such as the main CSS and HTML files. Their contributions primarily focused on establishing the fundamental structure and styling of the project, specifically creating the material-design-iconic-font.css file with the font-face and class definitions. They were responsible for implementing the core visual elements and ensuring the project's basic functionality.
cssmaterial-design
zavoloklom/yii2-ektp
Oct 2016 - Nov 2016
Contributions:126 pushes in 1 month
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