Sergei Kot
Software Engineer Technical Lead, Billing Financial Tools Department at Yandex
Belgrade, Central Serbia
Summary
👤
Senior🎓
Top SchoolSergei Kot is a software engineer and technical lead with 11 years of experience designing and operating billing and financial tooling at scale. At Yandex he progressed from junior developer to technical lead, building cloud services, distributed ClickHouse clusters, and reliable reconciliation and reporting systems while mentoring interns and taking on on-call responsibilities. He is fluent in Python and Go, has hands-on experience with async processing, SQS-style background tasks, Kubernetes, OLAP stores and payment APIs, and has improved legacy-to-microservice integrations without disrupting production. Sergei combines pragmatic engineering with data-savvy problem solving—rewriting MVPs, improving test suites, and tuning memory- and load-related issues in production. He keeps meticulous personal knowledge in Obsidian using Zettelkasten and has integrated it into a RAG-style LLM interface to query his notes in natural language. Based in Belgrade, he’s effective at turning complex financial data requirements into auditable, maintainable systems.
11 years of coding experience
2 years of employment as a software developer
Engineer's degree, Industrial Electronics Technology/Technician, Engineer's degree, Industrial Electronics Technology/Technician at National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
English, Russian, Serbian
Github Skills (20)
python9
infrastructure9
remote-execution8
zeromq8
docker8
salt8
saltstack8
scale8
iot8
configuration-management8
infrastructure-management8
package-repository8
devops7
infrastructure-as-code7
automation7
Programming languages (2)
Github contributions (5)
srg91/YellowRectangleCyanCircle
Jul 2020 - Aug 2020
A small application that makes one game easier
Contributions:1 release, 37 commits, 2 PRs in 28 days
android
srg91/OGLHook
Jan 2017 - Feb 2017
Contributions:3 releases, 37 commits, 47 pushes in 1 month
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