epam/ketcher
Nov 2024 – Oct 2025
10 Months active
Languages Used
PNGTypeScriptCSSJavaScriptLessketMarkdownMolfile
Technical Skills
Snapshot TestingTestingFront-end DevelopmentMacromolecule EditorTypeScriptUI Development
Kristina
PROFILE
Kristina
Kristina Kasyanovskaya developed and enhanced advanced macromolecule editing features for the epam/ketcher repository, focusing on robust UI/UX, chemical data integrity, and export fidelity. She engineered solutions for RNA/DNA sequence editing, monomer alias management, and context menu consistency, using TypeScript, React, and CSS. Her work included keyboard-driven workflows, drag-and-drop improvements, and visual feedback mechanisms, all supported by comprehensive testing and snapshot validation. By refactoring core components and stabilizing state management, Kristina reduced regression risk and improved editor reliability. Her contributions addressed complex bioinformatics requirements, ensuring accurate chemical representations and a seamless user experience for scientific diagramming and export.
Overall Statistics
Feature vs Bugs
47%Features
Repository Contributions
47Total
Bugs
19
Commits
47
Features
17
Lines of code
13,520
Activity Months10
Your Network
175 people
Work History
October 2025
10 Commits • 3 Features
Oct 1, 2025October 2025 monthly summary for epam/ketcher focused on delivering robust monomer editing features, improving UX and stability, and enhancing export fidelity. The work demonstrates strong collaboration between UX, core editing, and rendering subsystems, with a clear emphasis on business value: faster editing, fewer crashes, and more reliable exports.
10 Commits • 3 Features
Oct 1, 2025October 2025 monthly summary for epam/ketcher focused on delivering robust monomer editing features, improving UX and stability, and enhancing export fidelity. The work demonstrates strong collaboration between UX, core editing, and rendering subsystems, with a clear emphasis on business value: faster editing, fewer crashes, and more reliable exports.
October 2025
September 2025
5 Commits • 1 Features
Sep 1, 2025September 2025, epam/ketcher: Delivered UI/UX refinements and critical editor stability improvements. Key features delivered: UI consistency improvements in the Structure Library and ensuring Save to SDF button visibility on the Salts and Solvents tab; refined Right-click context menu visuals for consistency and safer delete actions. Major bugs fixed: Undo/redo selection restoration after cancelling monomer creation; preserved aliasHELM for unknown monomers to ensure accurate HELM exports; development-mode error 'Cannot update a component' addressed by migrating state initialization and menu updates to useEffect. Overall impact and accomplishments: Enhanced user workflow in the Structure Library, more reliable editor behavior and export accuracy, reduced edge-case errors, and improved dev stability. Technologies/skills demonstrated: React hooks (useEffect) for stable state management, UI/UX polish and layout tuning, state handling for editor operations, and robust HELM export support.
September 2025
5 Commits • 1 Features
Sep 1, 2025September 2025, epam/ketcher: Delivered UI/UX refinements and critical editor stability improvements. Key features delivered: UI consistency improvements in the Structure Library and ensuring Save to SDF button visibility on the Salts and Solvents tab; refined Right-click context menu visuals for consistency and safer delete actions. Major bugs fixed: Undo/redo selection restoration after cancelling monomer creation; preserved aliasHELM for unknown monomers to ensure accurate HELM exports; development-mode error 'Cannot update a component' addressed by migrating state initialization and menu updates to useEffect. Overall impact and accomplishments: Enhanced user workflow in the Structure Library, more reliable editor behavior and export accuracy, reduced edge-case errors, and improved dev stability. Technologies/skills demonstrated: React hooks (useEffect) for stable state management, UI/UX polish and layout tuning, state handling for editor operations, and robust HELM export support.
August 2025
10 Commits • 5 Features
Aug 1, 2025August 2025 (epam/ketcher): Delivered UX enhancements, stability fixes, and maintainability improvements across the editor, delivering business value for chemistry diagramming and macromolecule workflows. Key features include a Ruler Input Tooltip for quicker context, drag-and-drop improvements for sequence canvas, and centralized macromolecule hotkeys that ignore active inputs. Major fixes addressed area selection reliability when repositioning bonds/atoms, accurate rendering of leaving-group atoms for expanded monomers, and clearer code maintainability. Additional docs and micro-mode adjustments improve discoverability and editor control for users.
10 Commits • 5 Features
Aug 1, 2025August 2025 (epam/ketcher): Delivered UX enhancements, stability fixes, and maintainability improvements across the editor, delivering business value for chemistry diagramming and macromolecule workflows. Key features include a Ruler Input Tooltip for quicker context, drag-and-drop improvements for sequence canvas, and centralized macromolecule hotkeys that ignore active inputs. Major fixes addressed area selection reliability when repositioning bonds/atoms, accurate rendering of leaving-group atoms for expanded monomers, and clearer code maintainability. Additional docs and micro-mode adjustments improve discoverability and editor control for users.
August 2025
July 2025
4 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for epam/ketcher focusing on macromolecules UI stability and toolbar enhancements. Delivered key UI fixes, introduced About/Help in macromolecules mode, and improved loading behavior and test coverage.
July 2025
4 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for epam/ketcher focusing on macromolecules UI stability and toolbar enhancements. Delivered key UI fixes, introduced About/Help in macromolecules mode, and improved loading behavior and test coverage.
June 2025
7 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for epam/ketcher: Focused on stabilizing core chemistry calculations, enhancing UI consistency, and expanding ruler capabilities. Delivered 5 high-impact items across bug fixes and features, with strong emphasis on reliability, accuracy, and user experience. All changes accompanied by tests and snapshot updates to ensure regressions are prevented and business value is realized promptly.
7 Commits • 2 Features
Jun 1, 2025June 2025 monthly summary for epam/ketcher: Focused on stabilizing core chemistry calculations, enhancing UI consistency, and expanding ruler capabilities. Delivered 5 high-impact items across bug fixes and features, with strong emphasis on reliability, accuracy, and user experience. All changes accompanied by tests and snapshot updates to ensure regressions are prevented and business value is realized promptly.
June 2025
May 2025
3 Commits • 1 Features
May 1, 2025May 2025 Monthly Summary for epam/ketcher focused on strengthening the macromolecule editing workflow, improving UI stability during initial sequence edits, and ensuring data integrity during paste operations. The work delivered reduces editing errors, improves user confidence, and supports faster, more reliable RNA construction and macromolecule editing.
May 2025
3 Commits • 1 Features
May 1, 2025May 2025 Monthly Summary for epam/ketcher focused on strengthening the macromolecule editing workflow, improving UI stability during initial sequence edits, and ensuring data integrity during paste operations. The work delivered reduces editing errors, improves user confidence, and supports faster, more reliable RNA construction and macromolecule editing.
February 2025
2 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for epam/ketcher focused on sequence-mode enhancements, UI accuracy, and test coverage. Delivered a keyboard-driven phosphate insertion workflow and resolved a visual alignment bug for modified phosphates, strengthening editing reliability and reducing manual corrections in complex sequence representations.
2 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for epam/ketcher focused on sequence-mode enhancements, UI accuracy, and test coverage. Delivered a keyboard-driven phosphate insertion workflow and resolved a visual alignment bug for modified phosphates, strengthening editing reliability and reducing manual corrections in complex sequence representations.
February 2025
January 2025
4 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for epam/ketcher: Delivered stability improvements and feature enhancements for RNA/DNA handling and sequence editing. Key results include fixes to sequence integrity when editing ambiguous bases in RNA Builder, corrected color rendering for RNA Library peptides in the Favorites tab, validation to prevent adding attachment points to monomer-connected microstructures, and the introduction of antisense chain support with Uracil/Thymine differentiation to robustly represent both RNA and DNA sequences. These changes reduce data corruption risk, improve usability and test coverage, and broaden platform capabilities for nucleic acid workflows.
January 2025
4 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for epam/ketcher: Delivered stability improvements and feature enhancements for RNA/DNA handling and sequence editing. Key results include fixes to sequence integrity when editing ambiguous bases in RNA Builder, corrected color rendering for RNA Library peptides in the Favorites tab, validation to prevent adding attachment points to monomer-connected microstructures, and the introduction of antisense chain support with Uracil/Thymine differentiation to robustly represent both RNA and DNA sequences. These changes reduce data corruption risk, improve usability and test coverage, and broaden platform capabilities for nucleic acid workflows.
December 2024
1 Commits • 1 Features
Dec 1, 20242024-12 Monthly Summary for epam/ketcher: Delivered Macromolecule Editor Visual Feedback for Modified Monomers in both flex and snake editing modes, introducing on-canvas markers to indicate modified monomers and updating test snapshots to reflect the visuals. This enhancement improves editing feedback, reduces potential editing errors, and speeds design iterations in macromolecule editing workflows. Emphasized front-end canvas rendering and UI state signals, with tests adjusted to ensure visual fidelity. Overall, this work strengthens product usability and reliability in the editor while maintaining a tight feedback loop with QA.
1 Commits • 1 Features
Dec 1, 20242024-12 Monthly Summary for epam/ketcher: Delivered Macromolecule Editor Visual Feedback for Modified Monomers in both flex and snake editing modes, introducing on-canvas markers to indicate modified monomers and updating test snapshots to reflect the visuals. This enhancement improves editing feedback, reduces potential editing errors, and speeds design iterations in macromolecule editing workflows. Emphasized front-end canvas rendering and UI state signals, with tests adjusted to ensure visual fidelity. Overall, this work strengthens product usability and reliability in the editor while maintaining a tight feedback loop with QA.
December 2024
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for epam/ketcher focusing on features and test automation around the Macromolecule Editor. Delivered targeted snapshot test updates to align with changes to the Polymer Bond Tool and Sequence Mode, ensuring correct rendering and behavior through updated test assets. Aligned test coverage with the new amino-acid colour scheme introduced in the latest commit, reinforcing UI consistency across editor workflows.
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for epam/ketcher focusing on features and test automation around the Macromolecule Editor. Delivered targeted snapshot test updates to align with changes to the Polymer Bond Tool and Sequence Mode, ensuring correct rendering and behavior through updated test assets. Aligned test coverage with the new amino-acid colour scheme introduced in the latest commit, reinforcing UI consistency across editor workflows.
Activity
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Quality Metrics
Correctness89.8%
Maintainability88.4%
Architecture85.4%
Performance83.0%
AI Usage21.2%
Skills & Technologies
Programming Languages
CSSJSONJavaScriptLessMarkdownMolfilePNGSVGTypeScriptket
Technical Skills
Algorithm OptimizationBioinformaticsBug FixingCSSCSS/LessChemical DrawingChemical Drawing SoftwareCode DocumentationCode RefactoringComponent DevelopmentContext MenusData SerializationDocumentationFront End DevelopmentFront-end Development
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