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Konstantin Barabanov

PROFILE

Konstantin Barabanov

Worked on the cowprotocol/cowswap repository, delivering user-focused improvements across mobile UX, UI consistency, and performance. Enhanced the mobile experience by refining menu interactions and modal behavior, while optimizing article listing speed through caching strategies. Improved internationalization by preloading locale messages for faster initial renders and standardized locale formatting. Strengthened code quality with ESLint and Prettier, updated documentation, and unified media query utilities. Upgraded end-to-end testing by migrating infrastructure from Infura to Alchemy and resolving Cypress reliability issues. Leveraged React, TypeScript, and Cypress to implement smart slippage handling, dynamic imports for bundle size reduction, and robust error management in swap functionality.

Overall Statistics

Feature vs Bugs

83%Features

Repository Contributions

19Total
Bugs
2
Commits
19
Features
10
Lines of code
3,219
Activity Months3

Work History

February 2026

1 Commits • 1 Features

Feb 1, 2026

February 2026 — cowprotocol/cowswap: Delivered preload of locale messages for faster initial render, ensuring correct i18n strings on first paint and reducing unnecessary re-renders.

January 2026

3 Commits • 3 Features

Jan 1, 2026

January 2026 performance snapshot focusing on reliability, performance, and user experience for cowprotocol/cowswap. Key deliveries include end-to-end testing enhancements with a migration from Infura to Alchemy, swap UX refinements with smart slippage and robust error handling, and bundle-size optimizations via dynamic imports and dependency updates. These efforts improved test reliability, reduced page load times, and delivered a smoother trading experience, contributing to business value and developer velocity.

December 2025

15 Commits • 6 Features

Dec 1, 2025

December 2025 (cowprotocol/cowswap): Delivered user-focused mobile UX improvements, UI polish across browsers, and performance enhancements while strengthening code quality and documentation. Key features and bug fixes include mobile UX improvements (closing network selector on outside click; stabilizing mobile menu interactions), connect wallet modal swipe reliability (fix crash when closing via swipe; improved drag-end handling and swipe animation), UI polish and cross-browser consistency (first divider visibility; Firefox scrollbar rendering fixes), performance optimization for article slugs fetching (cache getAllArticleSlugsWithDates to reduce API calls and speed listing), locale formatting standardization (force decimal dot in formatPercentage and added locale tests), SearchBar enhancements and server action guidance (transitions refinements and notes about startTransition to avoid race conditions), documentation improvements (updated README with clearer examples and testing commands), and technical maintenance and tooling improvements (eslint rules, .mts support, prettier exclusions, unify media query utilities, and related build/lint cleanups).

Activity

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Quality Metrics

Correctness95.8%
Maintainability89.4%
Architecture89.4%
Performance89.4%
AI Usage24.2%

Skills & Technologies

Programming Languages

CSSJSONJavaScriptMarkdownTypeScript

Technical Skills

API integrationCSS stylingCypressESLintFront End DevelopmentJavaScriptNode.jsPrettierReactStyled ComponentsTypeScriptUI DevelopmentVitebackend developmentcaching strategies

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

cowprotocol/cowswap

Dec 2025 Feb 2026
3 Months active

Languages Used

CSSJSONJavaScriptMarkdownTypeScript

Technical Skills

API integrationCSS stylingESLintFront End DevelopmentPrettierReact