Andrey Girin developed and maintained core features and automated testing infrastructure for the epam/ketcher repository, focusing on macromolecule editing, monomer creation, and chemical structure representation. He expanded the autotest suite using TypeScript, JavaScript, and Playwright, introducing robust end-to-end and visual regression tests that improved reliability and accelerated release cycles. Andrey modernized the codebase through refactoring, enhanced UI workflows for sequence and monomer editors, and implemented CI/CD improvements to streamline test execution. His work addressed test flakiness, improved code quality, and broadened format compatibility, resulting in a maintainable, well-tested platform for chemical drawing and macromolecule modeling.
October 2025 monthly summary for epam/ketcher. Focused on advancing the monomer creation workflow, strengthening code quality and test robustness, and expanding test coverage for AxoLabs concurrency. Delivered user-facing UI improvements for attachment points, core refactors to modernize code and improve safety, and enhanced autotest reliability, resulting in a more maintainable codebase and broader compatibility with external formats.
October 2025 monthly summary for epam/ketcher. Focused on advancing the monomer creation workflow, strengthening code quality and test robustness, and expanding test coverage for AxoLabs concurrency. Delivered user-facing UI improvements for attachment points, core refactors to modernize code and improve safety, and enhanced autotest reliability, resulting in a more maintainable codebase and broader compatibility with external formats.
Month: 2025-09 | Repositories: epam/ketcher. Delivered focused testing and library expansion work that enhances reliability of monomer workflows and broadens structure support, enabling faster release cycles and richer structure analysis.
Month: 2025-09 | Repositories: epam/ketcher. Delivered focused testing and library expansion work that enhances reliability of monomer workflows and broadens structure support, enabling faster release cycles and richer structure analysis.
Month: 2025-08 — Delivered three major areas: STAR Atom Addition and Integration, Internal Test Framework Improvements and Code Quality, and Comprehensive Autotests for Embedded IE Popup Mode. The STAR atom feature extended the data model and updated canvas rendering with integration-tested workflows. Test framework improvements focused on reliability and maintainability (readonly fields, safer nullish coalescing refactor, presets, and snapshot cleanup). The IE popup mode autotests provide end-to-end coverage for core interactions (bond creation, save, undo/redo, overlaps, rendering).
Month: 2025-08 — Delivered three major areas: STAR Atom Addition and Integration, Internal Test Framework Improvements and Code Quality, and Comprehensive Autotests for Embedded IE Popup Mode. The STAR atom feature extended the data model and updated canvas rendering with integration-tested workflows. Test framework improvements focused on reliability and maintainability (readonly fields, safer nullish coalescing refactor, presets, and snapshot cleanup). The IE popup mode autotests provide end-to-end coverage for core interactions (bond creation, save, undo/redo, overlaps, rendering).
July 2025 monthly summary for epam/ketcher: delivered stability-focused autotest improvements, extended macromolecule capabilities, and test infrastructure cleanup, resulting in faster release cycles and higher confidence in macromolecule workflows.
July 2025 monthly summary for epam/ketcher: delivered stability-focused autotest improvements, extended macromolecule capabilities, and test infrastructure cleanup, resulting in faster release cycles and higher confidence in macromolecule workflows.
June 2025 focused on strengthening the autotest framework and expanding test coverage for Ketcher. Key enhancements included new page objects for settings and monomer library, expanded HELM loading tests, amino acid modification tests, macro mode sequence export tests, hydrophobicity graph tests, and test configuration/import organization fixes. Multiple autotest stability fixes improved reliability of the test suite, contributing to higher quality and faster feedback for releases.
June 2025 focused on strengthening the autotest framework and expanding test coverage for Ketcher. Key enhancements included new page objects for settings and monomer library, expanded HELM loading tests, amino acid modification tests, macro mode sequence export tests, hydrophobicity graph tests, and test configuration/import organization fixes. Multiple autotest stability fixes improved reliability of the test suite, contributing to higher quality and faster feedback for releases.
May 2025: Delivered major autotest stability and infrastructure improvements for epam/ketcher, with expanded coverage for macromolecule features and exports. The work focused on stabilizing the automated testing suite, refactoring test infrastructure for maintainability, and extending coverage to critical macromolecule workflows, enabling faster and more reliable releases.
May 2025: Delivered major autotest stability and infrastructure improvements for epam/ketcher, with expanded coverage for macromolecule features and exports. The work focused on stabilizing the automated testing suite, refactoring test infrastructure for maintainability, and extending coverage to critical macromolecule workflows, enabling faster and more reliable releases.
April 2025 performance summary for epam/ketcher: Delivered core editor overhauls to accelerate chemistry modeling workflows and improved test automation reliability. Major features include a Monomer library and RNA builder overhaul, macromolecule editor enhancements with sense/antisense chain recognition, and autotest framework modernization with new page objects and utilities to boost reliability and coverage. Business impact: improved user experience for RNA/macro-molecule workflows, reduced regression risk, and faster iteration cycles for feature delivery.
April 2025 performance summary for epam/ketcher: Delivered core editor overhauls to accelerate chemistry modeling workflows and improved test automation reliability. Major features include a Monomer library and RNA builder overhaul, macromolecule editor enhancements with sense/antisense chain recognition, and autotest framework modernization with new page objects and utilities to boost reliability and coverage. Business impact: improved user experience for RNA/macro-molecule workflows, reduced regression risk, and faster iteration cycles for feature delivery.
March 2025 (2025-03) — Epam/ketcher: Major expansion of the autotest suite and CI improvements focused on bug-fix coverage. The work strengthens regression safety across core workflows, micro/macromolecule mode behaviors, and sequence editor features, while enabling faster feedback on fixes through robust Playwright-based tests and artifact-enabled CI pipelines.
March 2025 (2025-03) — Epam/ketcher: Major expansion of the autotest suite and CI improvements focused on bug-fix coverage. The work strengthens regression safety across core workflows, micro/macromolecule mode behaviors, and sequence editor features, while enabling faster feedback on fixes through robust Playwright-based tests and artifact-enabled CI pipelines.
February 2025 focused on strengthening Ketcher sequence mode regression testing by expanding coverage with new snapshot tests for peptides and RNA. This work ensures more robust visual regression testing and accurate representation of sequences, supporting higher quality releases in the macromolecule editor. Key commit reference: 12c34ea414d7e84a709533398b70cb1474a90db5 (Autotests: #6517; autotests update the representation of sense and antisense chains in sequence mode 12 (#6555)).
February 2025 focused on strengthening Ketcher sequence mode regression testing by expanding coverage with new snapshot tests for peptides and RNA. This work ensures more robust visual regression testing and accurate representation of sequences, supporting higher quality releases in the macromolecule editor. Key commit reference: 12c34ea414d7e84a709533398b70cb1474a90db5 (Autotests: #6517; autotests update the representation of sense and antisense chains in sequence mode 12 (#6555)).
January 2025: Delivered process standardization, expanded automated testing, and CI reliability improvements for epam/ketcher. Key outcomes include standardized issue templates for Bug/Feature/Autotest Task, expanded autotests for the Macromolecule editor covering all 16 bond types and core workflows, CI/test infrastructure improvements to reduce flakiness and streamline test execution, and a UI enhancement adding Ctrl+B to toggle scrollbars in the Macromolecules editor integrated with screenshot tooling. Note: no explicit bug fixes were logged in the provided data; focus remained on quality, testing coverage, and developer productivity. Business value: faster triage, more reliable releases, and better editor UX.
January 2025: Delivered process standardization, expanded automated testing, and CI reliability improvements for epam/ketcher. Key outcomes include standardized issue templates for Bug/Feature/Autotest Task, expanded autotests for the Macromolecule editor covering all 16 bond types and core workflows, CI/test infrastructure improvements to reduce flakiness and streamline test execution, and a UI enhancement adding Ctrl+B to toggle scrollbars in the Macromolecules editor integrated with screenshot tooling. Note: no explicit bug fixes were logged in the provided data; focus remained on quality, testing coverage, and developer productivity. Business value: faster triage, more reliable releases, and better editor UX.
December 2024 monthly summary focusing on strengthening test automation for the macromolecule editor, stabilizing autotests, and improving test coverage for critical editor features. Key work includes consolidation of autotest improvements across antisense chain creation/deletion/modification/export, base pairing, layout verification with hydrogen bonds, and display validation for modified amino acids and monomers. Also encompasses stabilization improvements for autotest reliability (timeouts, page reloads, and test artifacts) and refactoring of undo/redo test utilities to improve consistency. Commit activity highlights include multiple autotest-related changes that enhanced coverage and reliability.
December 2024 monthly summary focusing on strengthening test automation for the macromolecule editor, stabilizing autotests, and improving test coverage for critical editor features. Key work includes consolidation of autotest improvements across antisense chain creation/deletion/modification/export, base pairing, layout verification with hydrogen bonds, and display validation for modified amino acids and monomers. Also encompasses stabilization improvements for autotest reliability (timeouts, page reloads, and test artifacts) and refactoring of undo/redo test utilities to improve consistency. Commit activity highlights include multiple autotest-related changes that enhanced coverage and reliability.
November 2024: Focused on expanding test coverage for macromolecules in Ketcher, delivering autotests across editing modes, hydrogen bonding validation, sequence import/export, and zoom behavior to improve reliability and cross-mode compatibility. These efforts reduce regression risk, enable faster iteration, and demonstrate strong QA and tooling skills.
November 2024: Focused on expanding test coverage for macromolecules in Ketcher, delivering autotests across editing modes, hydrogen bonding validation, sequence import/export, and zoom behavior to improve reliability and cross-mode compatibility. These efforts reduce regression risk, enable faster iteration, and demonstrate strong QA and tooling skills.
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