Sergey Cherepanov
Berlin, Germany
Summary
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RockstarSergey Cherepanov is an experienced app developer based in Berlin with 15 years building backend systems and leading engineering teams across gaming, streaming, and productivity startups. He has progressed from web and backend developer roles to lead backend developer and senior project lead, and today drives app development at Anytype, blending hands-on coding with product-focused delivery. Sergey contributes to open-source Go tooling—adding time-left, formatting, and proxy-reader features to a popular console progress bar—showing attention to developer ergonomics and I/O integration. He combines deep backend expertise with practical feature design, making him effective at shipping reliable, developer-friendly components in distributed systems.
15 years of coding experience
Stackoverflow
96reputation
10kreached
1answer
0questions
Github Skills (6)
terminal-emulator10
go10
progress-bar10
terminal-application10
io9
text-formatting8
Programming languages (4)
Github contributions (5)
cheggaaa/pb
Dec 2012 - Jul 2022
Console progress bar for Golang
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 reviews, 242 commits, 104 PRs in 9 years 8 months
Contributions summary:Sergey contributed to the development of a console progress bar library written in Go. Their work primarily involved fixing bugs and improving the functionality of the progress bar. They introduced features such as time-left support, prefix/postfix options, and the ability to customize the bar's format, including byte formatting. Additionally, they added a proxy reader to integrate the progress bar seamlessly with other I/O operations.
golangprogress-bargoterminal
anyproto/any-sync
Jul 2023 - Jul 2026
An open-source protocol enabling high-performance, local-first, peer-to-peer, end-to-end encrypted collaborative apps.
Contributions:223 reviews, 178 PRs, 280 pushes in 3 years
peer-to-peeranytypee2eelocal-firstp2p
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