Sergey Kopylov
Founder at Command Line
Serbia
Summary
🤩
Rockstar🎓
Top SchoolSergey Kopylov is a founder and web developer with 14 years of experience building product-focused web platforms and developer tools, currently leading Command Line to turn natural language commands into actionable automation for digital adoption and customer service. He combines a rigorous physics background (MSc and PhD-level training) with deep hands-on engineering, having launched and led multiple startups from no-code app builders to privacy-focused cloud compute and automated code review engines. Sergey has led engineering teams and shipped full-stack marketplaces, CRM-driven marketing engines, and document management systems for NGOs, often rebuilding legacy systems from the ground up. As a practical open-source contributor, he improved rendering and code quality in the popular apexcharts.js library, showing attention to front-end performance and maintainability. Comfortable moving between product strategy and low-level code, he blends entrepreneurial grit with a researcher's precision to solve complex UX and data-processing problems. Based in Serbia, he favors pragmatic, reusable architectures that accelerate adoption and automation across sales, education, and civic-tech domains.
14 years of coding experience
13 years of employment as a software developer
Master of Science (MSc), Theoretical and Mathematical Physics, Master of Science (MSc), Theoretical and Mathematical Physics at Moscow Institute of Physics and Technology (State University) (MIPT)PhD, Physics, PhD, Physics at Lancaster University
English, Russian, French, Serbian
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (8)
data-visualizations10
graph10
javascript10
data-visualisation10
data-visualization10
svg10
charts10
eslint9
Programming languages (3)
Github contributions (5)
apexcharts/apexcharts.js
Dec 2019 - Nov 2020
📊 Interactive JavaScript Charts built on SVG
Role in this project:
Front-end Developer
Front-end DeveloperContributions:32 commits, 4 PRs, 5 pushes in 11 months
Contributions summary:Sergey primarily contributed to the `apexcharts.js` repository by updating and refactoring the charting library's source code. Their work involved modifications to existing chart components, specifically `RangeBar.js`, `Bar.js`, and `CandleStick.js`, likely to improve functionality or address bugs. The user also polished the `pathTo` and `pathFrom` usage, indicating work related to the internal rendering logic of the charts, and removing unused variables, indicating code cleanup and optimization efforts. Additionally, they renamed a file and added ESLint rules to enforce code style.
chartschartsvgjavascriptjavascript-charts
basys/basys
Jan 2018 - Jun 2018
Contributions:12 releases, 116 commits, 2 PRs in 5 months
vue-jsjs-frameworkfull-stackjavascriptframework
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