instructure/canvas-lms
Apr 2025 – Jul 2025
4 Months active
Languages Used
JavaScriptJSXHTMLRubyTypeScript
Technical Skills
Front End DevelopmentJavaScriptjQueryAccessibilityReactAPI Development
Sleyder Zuleta
PROFILE
Sleyder Zuleta
Sleyder Zuleta contributed to the instructure/canvas-lms repository by delivering four accessibility-focused features over four months, emphasizing maintainable code and user experience improvements. He enhanced rubric dialog accessibility by refining focus management and implementing robust focus trapping, ensuring keyboard navigation and screen reader compatibility. Sleyder modularized the Accessibility::Issue model using Ruby on Rails and JavaScript, enabling scalable issue generation and streamlined controller logic for pages, assignments, and attachments. He also improved the Accessibility Checker with explanatory tooltips, dynamic undo text, and rule-based validation. His work demonstrated depth in frontend and backend development, code organization, and accessibility tooling, supporting compliance and maintainability.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
7Total
Bugs
0
Commits
7
Features
4
Lines of code
2,016
Activity Months4
Your Network
352 peopleSame Organization
@instructure.com184
Ahmed NaguibMember
Ádám MátéMember
Adam_MikulasMember
Adam MolnarMember
Nagy AdamMember
Adam SzaboMember
Adrian GruberMember
akemenyMember
Akos HermannMember
Shared Repositories
168
Ádám MátéMember
Adam_MikulasMember
Adam MolnarMember
Adam SzaboMember
Adrian GruberMember
akemenyMember
Akos HorvathMember
Alexandre DosSantosMember
alvaro.talaveraMember
Work History
July 2025
4 Commits • 1 Features
Jul 1, 2025July 2025: Delivered Accessibility Checker enhancements for instructure/canvas-lms, including a Why Matters tooltip for explanations, a rule to catch adjacent links with identical URLs, dynamic undo text per rule, and reliability fixes to the Save and Next remediation flow. The changes were implemented with traceable commits: Add Question Button with Tooltip; Support adjacent links rule; Dynamic Undo Text per rule; Fix Save and Next flow. Business impact: improved accessibility compliance, faster remediation cycles, and reduced QA effort. Skills demonstrated: front-end UX improvements, rule-based validation, accessibility tooling, and reliability engineering.
4 Commits • 1 Features
Jul 1, 2025July 2025: Delivered Accessibility Checker enhancements for instructure/canvas-lms, including a Why Matters tooltip for explanations, a rule to catch adjacent links with identical URLs, dynamic undo text per rule, and reliability fixes to the Save and Next remediation flow. The changes were implemented with traceable commits: Add Question Button with Tooltip; Support adjacent links rule; Dynamic Undo Text per rule; Fix Save and Next flow. Business impact: improved accessibility compliance, faster remediation cycles, and reduced QA effort. Skills demonstrated: front-end UX improvements, rule-based validation, accessibility tooling, and reliability engineering.
July 2025
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 (instructure/canvas-lms) — Focused on improving accessibility tooling through a modular refactor of issue handling. Delivered a structured, scalable Accessibility::Issue model with new controller actions and logic to generate and update accessibility issues for pages, assignments, and attachments. This unlocks easier maintenance, quicker iteration on accessibility checks, and stronger compliance signals for users and auditors. No separate critical bugs fixed this month; the primary work was a targeted refactor aimed at reducing technical debt and accelerating future feature delivery. Commit: 052bbab03f019c802b68232e885221e63628a12c.
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 (instructure/canvas-lms) — Focused on improving accessibility tooling through a modular refactor of issue handling. Delivered a structured, scalable Accessibility::Issue model with new controller actions and logic to generate and update accessibility issues for pages, assignments, and attachments. This unlocks easier maintenance, quicker iteration on accessibility checks, and stronger compliance signals for users and auditors. No separate critical bugs fixed this month; the primary work was a targeted refactor aimed at reducing technical debt and accelerating future feature delivery. Commit: 052bbab03f019c802b68232e885221e63628a12c.
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for instructure/canvas-lms focused on accessibility improvements for rubric modals. Delivered a robust focus trapping mechanism to ensure keyboard focus remains within rubric-related dialogs and integrated a focus region manager to activate/deactivate containment as modals open/close. This enhances keyboard navigation, screen reader compatibility, and overall user experience for instructors and learners interacting with rubrics.
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for instructure/canvas-lms focused on accessibility improvements for rubric modals. Delivered a robust focus trapping mechanism to ensure keyboard focus remains within rubric-related dialogs and integrated a focus region manager to activate/deactivate containment as modals open/close. This enhances keyboard navigation, screen reader compatibility, and overall user experience for instructors and learners interacting with rubrics.
May 2025
April 2025
1 Commits • 1 Features
Apr 1, 2025Concise monthly summary for 2025-04 focusing on feature delivery, impact, and technical excellence in instructure/canvas-lms.
April 2025
1 Commits • 1 Features
Apr 1, 2025Concise monthly summary for 2025-04 focusing on feature delivery, impact, and technical excellence in instructure/canvas-lms.
Activity
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Quality Metrics
Correctness91.4%
Maintainability91.4%
Architecture87.2%
Performance87.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
HTMLJSXJavaScriptRubyTypeScript
Technical Skills
API DevelopmentAPI IntegrationAccessibilityBackend DevelopmentCode OrganizationFront End DevelopmentFrontend DevelopmentJavaScriptModel-View-Controller (MVC)ReactRefactoringRuby on RailsState ManagementUI/UXjQuery
Repositories Contributed To
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