Sergei Vizel
R&D at Modera
Tallinn, Harju County, Estonia
Summary
👤
Senior🎓
Top SchoolSergei Vizel is an R&D software engineer based in Tallinn with 14 years of experience building reliable production systems across startups and consultancies. He progressed from software developer roles into senior engineering and now R&D work at Modera, combining long-term product delivery with hands-on implementation. Sergei is an active open-source contributor, notably improving argument handling, help output, testing, and ESM import behavior in the widely used commander.js CLI library. He brings full-stack instincts to developer tooling and backend features, often focusing on practical improvements that aid both users and maintainers. Colleagues value his steady technical ownership and the way he turns small refinements into clearer, more robust developer experiences.
14 years of coding experience
14 years of employment as a software developer
TalTech – Tallinn University of Technology
Github Skills (10)
command-line-interface10
nodejs10
javascript10
command-line10
testing10
typescript-types9
typescript9
typescripts9
esmodules8
documentation7
Programming languages (8)
Github contributions (5)
tj/commander.js
Nov 2017 - Apr 2021
node.js command-line interfaces made easy
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:6 reviews, 5 commits, 10 PRs in 3 years 5 months
Contributions summary:Sergei primarily contributed to the `commander.js` project, a Node.js command-line interface library. They focused on improving the argument handling capabilities of the library by adding functionality for argument descriptions and refining the help information display. The user also addressed a configuration oversight related to output and expanded the testing framework. Moreover, the user provided enhancements regarding ESM imports.
command-line-toolnode-jsjavascriptnodejsinterfaces
cravler/flask-twisted
Apr 2015 - Jan 2017
Simple integration of Flask and Twisted
Contributions:4 commits, 1 PR, 3 pushes in 1 year 9 months
flaskpythonflask-api
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