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mateuszszczecina

PROFILE

Mateuszszczecina

Worked on the Selleo/lms-core repository over four months, delivering features that enhanced course management, authoring, and assessment workflows. Developed and refined admin interfaces for course creation and editing, implemented drag-and-drop UI for quiz and chapter management, and introduced internationalization using TypeScript, React, and Next.js. Improved backend data integrity through SQL and Drizzle ORM, while expanding end-to-end testing with Playwright to ensure robust workflows. Addressed UI/UX consistency, validation, and file handling, including image uploads and reliable thumbnail rendering. Focused on maintainable, traceable code, the work strengthened both frontend and backend, supporting scalable, global-ready learning management system features.

Overall Statistics

Feature vs Bugs

80%Features

Repository Contributions

36Total
Bugs
2
Commits
36
Features
8
Lines of code
37,529
Activity Months4

Work History

March 2025

1 Commits • 1 Features

Mar 1, 2025

March 2025 monthly summary for Selleo/lms-core: Delivered essential text lesson form validation to enforce non-empty and properly formatted title and description inputs, boosting data integrity for lesson creation. The work is tracked under commit 965e977a086a715285524639959b6dec34837eb5 with message 'feat: add missing validation in text lesson (#404)'. No major bugs fixed this period. Focused on feature delivery, code quality, and aligning with validation standards, delivering measurable business value through more reliable data and smoother user submissions.

January 2025

21 Commits • 4 Features

Jan 1, 2025

January 2025 monthly summary for Selleo/lms-core: Delivered four core initiatives—internationalization rollout, quiz data model/UI refinements, course creation/editing UX improvements, and expanded end-to-end testing—with 21 commits. These efforts enhance global usability, instructor productivity, and release quality, reducing time-to-market for localized courses and lowering regression risk.

December 2024

11 Commits • 2 Features

Dec 1, 2024

December 2024 monthly summary for Selleo/lms-core: Delivered key features to accelerate course authoring and enhance assessment capabilities, fixed data integrity issues, and improved thumbnail reliability. Focused on business value: faster content creation, richer learner assessments, and more reliable media rendering, while strengthening data correctness and maintainability.

November 2024

3 Commits • 1 Features

Nov 1, 2024

November 2024 monthly summary for Selleo/lms-core focusing on Admin Course Management enhancements and related UI improvements. Delivered end-to-end course lifecycle capabilities including create/edit workflows, image uploads, and category selection; backend schema and routes adjusted; introduced pricing and status views to enhance course configurability; implemented UI refinements such as removing the splash screen navigation and updating default tabs to streamline admin workflows. A targeted UI bug fix to remove the splash screen sidebar was shipped, improving admin UX and navigation reliability.

Activity

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Quality Metrics

Correctness86.8%
Maintainability83.6%
Architecture77.4%
Performance77.2%
AI Usage22.2%

Skills & Technologies

Programming Languages

CSSHTMLJavaScriptSQLSVGTypeScript

Technical Skills

API DevelopmentAPI IntegrationBackend DevelopmentComponent DevelopmentCourse ManagementDatabase DesignDatabase ManagementDrag and Drop UIDrizzle ORMEnd-to-End TestingFile UploadsForm HandlingForm ValidationFront End DevelopmentFront-end Development

Repositories Contributed To

1 repo

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

Selleo/lms-core

Nov 2024 Mar 2025
4 Months active

Languages Used

JavaScriptSVGTypeScriptCSSHTMLSQL

Technical Skills

API IntegrationComponent DevelopmentForm HandlingFrontend DevelopmentNext.jsReact