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Marcos Luis Delgado

PROFILE

Marcos Luis Delgado

Over three months, this developer delivered four features across Telefonica’s mistica-web and webview-bridge repositories, focusing on front-end improvements, accessibility, and DevOps automation. They enhanced desktop modal sheets in mistica-web by refining CSS layouts and z-index management, introduced accessibility improvements to ButtonLink components using React and TypeScript, and implemented automated visual regression testing. In webview-bridge, they added a tagging feature to sheet components and fully automated the release workflow with semantic-release, OIDC npm publishing, and CI/CD enhancements using Node.js and GitHub Actions. Their work improved UI reliability, accessibility, release consistency, and laid foundations for future analytics and automation.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

5Total
Bugs
0
Commits
5
Features
4
Lines of code
2,969
Activity Months3

Work History

June 2026

1 Commits • 1 Features

Jun 1, 2026

June 2026: Delivered a fully automated release workflow for the Telefonica/webview-bridge repository, significantly improving release accuracy, security, and speed. Implemented semantic-release-based publishing with OIDC-trusted npm publishing, ensuring automated, verifiable releases. Enforced Conventional Commits via PR title linting to drive correct versioning and changelogs. Added safeguards to prevent local publishing and aligned CI to support the new flow (Node upgrade to 24). Updated documentation to codify the automated flow and contribution standards. This work, anchored by commit fb8bc4adb30a69fd44fd462f27b16c6e2f85f253, reduces release toil and positions the package for reliable production deployments.

March 2026

1 Commits • 1 Features

Mar 1, 2026

Month: 2026-03 — Key focus: delivering the Sheet Tagging Feature for LIST and SINGLE_SELECTION sheets in Telefonica/webview-bridge. Introduced a tag property on SheetRowItem, updated bottom sheet tests, and prepared release/docs. No major bugs fixed this month; minor test enhancements and documentation improvements were performed. Business impact: improves data organization and UI tagging capabilities, enabling better user workflows and laying the groundwork for future analytics tagging. Technologies/skills demonstrated: TypeScript/data modeling, test coverage, release/docs updates, and cross-team collaboration.

June 2025

3 Commits • 2 Features

Jun 1, 2025

June 2025 monthly summary for Telefonica/mistica-web: Key features delivered include (1) Desktop Sheets Visual Fixes and Scrolling Behavior: resolved desktop modal sheets visual issues by adjusting z-index for close buttons, sticky titles, and sticky action buttons; updated body content styling to ensure proper scrolling on larger screens; added screenshot tests to lock in visuals. Commit: 2aafa78aa58cc7cf4cfd0ec150af432592fb3889. (2) ButtonLink Fake Button Support and Accessibility Enhancements: added a 'fake' prop to render ButtonLink as a fake button with accompanying type tests; removed incorrect role/aria attributes from fake buttons to fix accessibility and ensure semantic correctness. Commits: 2dd60ec28c91b6d7f0fa4dd66af27ba37111b566, f089329804396e6f3c21155e0617fdb0ddfeb5ec. Overall Summary of Impact: - Major UI improvements on desktop: visual consistency for modal sheets and reliable scrolling on large viewports. - Accessibility improvements: semantic ButtonLink rendering and removal of misleading ARIA attributes. - Added automated visual regression tests to prevent future UI drift. Technologies/Skills Demonstrated: - CSS/Layout and z-index management for complex modals - Accessibility best practices (ARIA roles, semantic HTML) - TypeScript/React component patterns and testing (prop-based rendering, type tests) - Automated visual regression testing (screenshot tests) for UI confidence Business Value: - More reliable desktop UI, reduced visual regressions, and improved accessibility, leading to faster QA cycles and better user experience for Mistica Web users.

Activity

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Quality Metrics

Correctness84.0%
Maintainability84.0%
Architecture80.0%
Performance84.0%
AI Usage24.0%

Skills & Technologies

Programming Languages

CSSJavaScriptReactTypeScriptYAML

Technical Skills

AccessibilityCI/CDCSSDevOpsFront-end DevelopmentGitHub ActionsNode.jsReactReact ComponentsTypeScriptUI/UXfront end development

Repositories Contributed To

2 repos

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

Telefonica/mistica-web

Jun 2025 Jun 2025
1 Month active

Languages Used

CSSJavaScriptReactTypeScript

Technical Skills

AccessibilityCSSFront-end DevelopmentReactReact ComponentsTypeScript

Telefonica/webview-bridge

Mar 2026 Jun 2026
2 Months active

Languages Used

TypeScriptJavaScriptYAML

Technical Skills

TypeScriptfront end developmentCI/CDDevOpsGitHub ActionsNode.js