epam/ketcher
Dec 2025 – Jun 2026
7 Months active
Languages Used
TypeScriptJavaScriptYAMLJSON
Technical Skills
PlaywrightTypeScriptfront end developmenttest automationJavaScriptcode refactoring
Alexey Girin
PROFILE
Alexey Girin
Over seven months, contributed to the epam/ketcher repository by delivering ten features and resolving security and stability issues through targeted bug fixes and dependency upgrades. Focused on strengthening test automation and CI reliability, modernizing the Playwright-based test infrastructure, and expanding coverage for molecule editing and visualization workflows. Enhanced the Monomer Creation Wizard, improved UI elements, and refactored core logic for maintainability and performance. Applied TypeScript, JavaScript, and Node.js to streamline code reviews, enforce security best practices, and accelerate release cycles. The work emphasized automation, dependency management, and collaborative development, resulting in a more robust, maintainable, and secure codebase.
Overall Statistics
Feature vs Bugs
83%Features
Repository Contributions
23Total
Bugs
2
Commits
23
Features
10
Lines of code
34,706
Activity Months7
Your Network
233 peopleWork History
June 2026
2 Commits • 1 Features
Jun 1, 2026Month: 2026-06 | Repository: epam/ketcher Concise monthly summary focusing on business value and technical achievements for the epam/ketcher repo. Key features delivered: - Dependency upgrades to address security vulnerabilities and improve stability, including Next.js and testing environment updates. Major bugs fixed: - Security vulnerabilities mitigated through dependency upgrades, reducing CVE exposure and improving build stability. Overall impact and accomplishments: - Strengthened security posture and overall stability of the codebase. - Improved compatibility with modern Next.js versions and updated test tooling, enabling more reliable releases and faster iteration. - Established a maintainable upgrade baseline and prepared the ground for future improvements. Technologies/skills demonstrated: - Dependency management, secure upgrade practices, and package hygiene. - Refactoring to remediate vulnerabilities and align with updated tooling. - Experience with Next.js ecosystem, testing tooling, and CI alignment. Delivery details: - Commits: - 4d25340d33d3b59bb216916f9db067fc69b9ea3f: Refactor: Update packages to remove vulnerabilities (#10151) - a8efa47e4d37eb70f080df720392ecbc69c0cfe8: First draft (#10250)
2 Commits • 1 Features
Jun 1, 2026Month: 2026-06 | Repository: epam/ketcher Concise monthly summary focusing on business value and technical achievements for the epam/ketcher repo. Key features delivered: - Dependency upgrades to address security vulnerabilities and improve stability, including Next.js and testing environment updates. Major bugs fixed: - Security vulnerabilities mitigated through dependency upgrades, reducing CVE exposure and improving build stability. Overall impact and accomplishments: - Strengthened security posture and overall stability of the codebase. - Improved compatibility with modern Next.js versions and updated test tooling, enabling more reliable releases and faster iteration. - Established a maintainable upgrade baseline and prepared the ground for future improvements. Technologies/skills demonstrated: - Dependency management, secure upgrade practices, and package hygiene. - Refactoring to remediate vulnerabilities and align with updated tooling. - Experience with Next.js ecosystem, testing tooling, and CI alignment. Delivery details: - Commits: - 4d25340d33d3b59bb216916f9db067fc69b9ea3f: Refactor: Update packages to remove vulnerabilities (#10151) - a8efa47e4d37eb70f080df720392ecbc69c0cfe8: First draft (#10250)
June 2026
May 2026
4 Commits • 2 Features
May 1, 2026Monthly summary for 2026-05 (epam/ketcher) focusing on automation testing and code quality improvements. Key deliverables: - Automated Testing Enhancements for Ketcher: Upgraded test framework to Playwright v1.59; extended autotests to cover image handling, tool selection, and edge cases in molecule editing/visualization. - Bond Type Constants Refactor and Test Coverage Improvement: Refactored bond type constants for clarity and maintainability; updated tests to align with new constants; expanded bond-related test coverage. Impact and outcomes: - Increased test coverage and stability, enabling earlier detection of regressions in editing/visualization features, reducing manual QA effort and accelerating releases. - Improved maintainability of core constants, reducing future tech debt and enabling faster onboarding for contributors. Technologies/skills demonstrated: - Playwright 1.59, TypeScript/JavaScript, test automation, test coverage analysis, code refactoring, and collaborative development (co-authored commits).
May 2026
4 Commits • 2 Features
May 1, 2026Monthly summary for 2026-05 (epam/ketcher) focusing on automation testing and code quality improvements. Key deliverables: - Automated Testing Enhancements for Ketcher: Upgraded test framework to Playwright v1.59; extended autotests to cover image handling, tool selection, and edge cases in molecule editing/visualization. - Bond Type Constants Refactor and Test Coverage Improvement: Refactored bond type constants for clarity and maintainability; updated tests to align with new constants; expanded bond-related test coverage. Impact and outcomes: - Increased test coverage and stability, enabling earlier detection of regressions in editing/visualization features, reducing manual QA effort and accelerating releases. - Improved maintainability of core constants, reducing future tech debt and enabling faster onboarding for contributors. Technologies/skills demonstrated: - Playwright 1.59, TypeScript/JavaScript, test automation, test coverage analysis, code refactoring, and collaborative development (co-authored commits).
April 2026
7 Commits • 3 Features
Apr 1, 2026April 2026 monthly summary for epam/ketcher: delivered core molecule handling improvements, UI enhancements, and testing/CI improvements; resolved cross-platform build issues; increased reliability and developer velocity.
7 Commits • 3 Features
Apr 1, 2026April 2026 monthly summary for epam/ketcher: delivered core molecule handling improvements, UI enhancements, and testing/CI improvements; resolved cross-platform build issues; increased reliability and developer velocity.
April 2026
March 2026
5 Commits • 1 Features
Mar 1, 2026March 2026 Monthly Summary (epam/ketcher) Key features delivered: - Monomer Creation Wizard enhancements: enabled editing monomer structure, atom properties, and bond types; improved right-click context menus; aligned with updated autotests/spec coverage to ensure reliability of new editing flows. Major bugs fixed and build/test reliability improvements: - Stabilized autotests and developer workflow by fixing Vite server configuration, removing noisy warnings, and refactoring tests to improve reliability. Overall impact and accomplishments: - Enables faster, safer monomer design workflows for users; reduces flaky test runs, shortens feedback loops, and improves developer productivity; lays groundwork for upcoming chemistry editing features. Technologies/skills demonstrated: - React/TypeScript, Vite, Playwright-based autotests, test automation, CI/CD reliability, cross-team collaboration (co-authored commits).
March 2026
5 Commits • 1 Features
Mar 1, 2026March 2026 Monthly Summary (epam/ketcher) Key features delivered: - Monomer Creation Wizard enhancements: enabled editing monomer structure, atom properties, and bond types; improved right-click context menus; aligned with updated autotests/spec coverage to ensure reliability of new editing flows. Major bugs fixed and build/test reliability improvements: - Stabilized autotests and developer workflow by fixing Vite server configuration, removing noisy warnings, and refactoring tests to improve reliability. Overall impact and accomplishments: - Enables faster, safer monomer design workflows for users; reduces flaky test runs, shortens feedback loops, and improves developer productivity; lays groundwork for upcoming chemistry editing features. Technologies/skills demonstrated: - React/TypeScript, Vite, Playwright-based autotests, test automation, CI/CD reliability, cross-team collaboration (co-authored commits).
February 2026
3 Commits • 2 Features
Feb 1, 2026February 2026 — EPAM/ketcher: focused on strengthening test automation quality for AxoLabs format support and accelerating code reviews by streamlining PR reviewer assignment.
3 Commits • 2 Features
Feb 1, 2026February 2026 — EPAM/ketcher: focused on strengthening test automation quality for AxoLabs format support and accelerating code reviews by streamlining PR reviewer assignment.
February 2026
January 2026
1 Commits
Jan 1, 2026In January 2026, delivered a security-hardening fix for Safe SGroup dispatch in the epam/ketcher repository by validating allowed SGroup types before invoking their handlers, preventing unvalidated dynamic method calls in loadSGroup. This work directly addresses code-scanning alert #22 and improves runtime safety, robustness, and maintainability of the dispatch path. The change was implemented via commit 5c84d09ac2124e29ee861c13e5a063dd1c5af3fd and included refactoring to move constants outside function scope for security and performance reasons, with multiple contributors involved.
January 2026
1 Commits
Jan 1, 2026In January 2026, delivered a security-hardening fix for Safe SGroup dispatch in the epam/ketcher repository by validating allowed SGroup types before invoking their handlers, preventing unvalidated dynamic method calls in loadSGroup. This work directly addresses code-scanning alert #22 and improves runtime safety, robustness, and maintainability of the dispatch path. The change was implemented via commit 5c84d09ac2124e29ee861c13e5a063dd1c5af3fd and included refactoring to move constants outside function scope for security and performance reasons, with multiple contributors involved.
December 2025
1 Commits • 1 Features
Dec 1, 2025Month 2025-12: Focused on strengthening test automation for epam/ketcher by modernizing the test infrastructure and enhancing autotest capabilities. Delivered significant refactoring to improve code quality, introduced a new atom interaction method to streamline test execution, and reorganized the autotest suite for better readability and efficiency. This work reduces maintenance overhead and accelerates CI feedback, contributing to higher test reliability and faster release cycles.
1 Commits • 1 Features
Dec 1, 2025Month 2025-12: Focused on strengthening test automation for epam/ketcher by modernizing the test infrastructure and enhancing autotest capabilities. Delivered significant refactoring to improve code quality, introduced a new atom interaction method to streamline test execution, and reorganized the autotest suite for better readability and efficiency. This work reduces maintenance overhead and accelerates CI feedback, contributing to higher test reliability and faster release cycles.
December 2025
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Quality Metrics
Correctness87.0%
Maintainability85.2%
Architecture85.2%
Performance85.2%
AI Usage52.2%
Skills & Technologies
Programming Languages
JSONJavaScriptTypeScriptYAML
Technical Skills
Configuration ManagementContinuous IntegrationDevOpsGitHub ActionsJavaScriptJavaScript testingNodeNode.jsPlaywrightReactSonarQubeTypeScriptTypeScript developmentViteautomation
Repositories Contributed To
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