EXCEEDS logo
Exceeds
Aleksandr Tanas

PROFILE

Aleksandr Tanas

Worked on the epam/ketcher repository over three months, delivering core features and stability improvements for RNA editing workflows and UI flexibility. Addressed sequence integrity by refactoring fragment insertion logic and implemented robust undo/redo history for the editor. Enhanced user experience with keyboard support and UI refinements in the RNA editor, while introducing popup and duo view modes through updated build configuration and Vite routing. Fixed asynchronous initialization issues using React hooks and improved security by correcting .gitignore handling for sensitive files. The work demonstrated proficiency in JavaScript, TypeScript, and React, with a focus on maintainable code and reliable editing workflows.

Overall Statistics

Feature vs Bugs

57%Features

Repository Contributions

9Total
Bugs
3
Commits
9
Features
4
Lines of code
3,242
Activity Months3

Work History

February 2025

5 Commits • 2 Features

Feb 1, 2025

February 2025 monthly summary for EPAM repositories focusing on delivering core features, stabilizing initialization flows, and hardening security. Key outcomes include enabling RNA monomer replacement with cross-module sequence updates, introducing multi-view UI (popup/duo) with updated build configuration, and stabilizing asynchronous initialization of StructServiceProvider. Also addressed security by correcting .gitignore to protect GnuPG-related files. These efforts improve RNA editing workflows, UI deployment flexibility, app reliability, and data security across the codebase.

January 2025

3 Commits • 2 Features

Jan 1, 2025

In Jan 2025, delivered key editor stability and UX improvements for the epam/ketcher project, focusing on Canvas editing reliability and RNA editor usability. These changes strengthen core editing workflows, reduce regression risk, and enable faster feature delivery with higher quality code and tests.

December 2024

1 Commits

Dec 1, 2024

December 2024 — Focused on stabilizing core editing workflow in the epam/ketcher repository. Implemented a robust fix for SequenceMode fragment insertion stability by refactoring the operation order to delete the bond to the next node only after confirming a connection with the previous node. This preserves sequence integrity, prevents unintended disconnections, and improves editing reliability for chemical sequences. The work is tied to a single critical commit and aligns with PR/issue references for traceability and QA review.

Activity

Loading activity data...

Quality Metrics

Correctness90.0%
Maintainability84.4%
Architecture77.8%
Performance80.0%
AI Usage22.2%

Skills & Technologies

Programming Languages

CSSGitHTMLJavaScriptLessTypeScript

Technical Skills

Asynchronous ProgrammingBug FixingCSS/LessCode RefactoringEvent HandlingFront End DevelopmentFront-end DevelopmentFrontend DevelopmentFull Stack DevelopmentJavaScriptMonomer ManagementRNA EditingReactReact RouterRedux

Repositories Contributed To

2 repos

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

epam/ketcher

Dec 2024 Feb 2025
3 Months active

Languages Used

TypeScriptJavaScriptLessCSSHTML

Technical Skills

Front-end DevelopmentTypeScriptBug FixingCSS/LessCode RefactoringEvent Handling

epam/cloud-pipeline

Feb 2025 Feb 2025
1 Month active

Languages Used

Git

Technical Skills

Version Control