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Carlos Díaz

PROFILE

Carlos Díaz

Over six months, contributed to Vizzuality/amazonia-360 and GlobalFishingWatch/frontend by building robust test automation, PDF reporting, and UI validation features. Delivered widget-level screenshot capture and performance optimizations for visual regression, and implemented automated PDF report generation with dynamic layouts. Migrated end-to-end testing to Playwright, expanded coverage for map and data workflows, and stabilized CI pipelines through configuration and infrastructure improvements. Enhanced frontend reliability by refactoring test suites, introducing integration authentication, and addressing flakiness in critical flows. Leveraged TypeScript, React, and Node.js to drive maintainable, scalable solutions that improved release confidence and accelerated feedback for distributed engineering teams.

Overall Statistics

Feature vs Bugs

61%Features

Repository Contributions

85Total
Bugs
17
Commits
85
Features
27
Lines of code
872,584
Activity Months6

Work History

March 2026

33 Commits • 10 Features

Mar 1, 2026

March 2026 monthly summary for GlobalFishingWatch/frontend: Focused on expanding test coverage, stabilizing test execution, and hardening map/UI flows to enable faster, safer feature delivery. Team work emphasized test automation, CI reliability, and documentation to support ongoing quality. Overall, the front-end team delivered substantial improvements in test coverage and stability across core features, with targeted optimizations to map interactions and authentication-related test infra, driving lower cycle times for releases and higher confidence in production.

February 2026

29 Commits • 9 Features

Feb 1, 2026

February 2026 — GlobalFishingWatch/frontend focused on stabilizing test runs, expanding end-to-end coverage, and optimizing CI performance to accelerate releases. Key outcomes include per-test router middleware re-instantiation for deterministic tests, expanded UI test coverage (Timebar, vessel map popup, datasets guards, and map integration tests), and reliability enhancements to CI and frontend behavior (static assets plugin with controlled parallelism, environment-based tutorial popups, and mock timing). These changes reduce flaky tests, shorten feedback loops, and improve deployment confidence while enabling faster iteration on UI features.

January 2026

12 Commits • 4 Features

Jan 1, 2026

Month: 2026-01 | GlobalFishingWatch/frontend Overview: In January 2026, focused on hardening frontend test quality, reliability, and performance. Delivered enhancements to the Timebar testing suite, stabilized end-to-end testing with Playwright, cleaned up non-essential console noise, and broadened automated test coverage for critical flows (login, map interactions, vessel profile). These efforts improved CI stability, reduced flaky tests, and accelerated feedback for UI changes, driving more dependable releases.

December 2025

7 Commits • 2 Features

Dec 1, 2025

December 2025: Strengthened quality engineering for GlobalFishingWatch/frontend by overhauling the E2E testing framework to Playwright and upgrading test infrastructure to Vitest, delivering scalable, reliable test coverage for critical user flows and improved CI speed. Reorganized the E2E test project structure and streamlined workspace configuration to support future test expansion.

October 2025

1 Commits • 1 Features

Oct 1, 2025

October 2025: Delivered a foundational PDF reporting capability for Vizzuality/amazonia-360, enabling automated, publication-ready documents that combine geospatial context with topic-specific insights. Refactored the rendering pipeline to support PDF output, and introduced layout and header containers to ensure consistent formatting across reports. Adjusted map controls and indicator displays to render accurately in exported PDFs, enabling reliable offline sharing with stakeholders. This work lays the groundwork for scalable, template-driven reporting and strengthens the product's value for clients requiring distributable summaries of geographic insights.

September 2025

3 Commits • 1 Features

Sep 1, 2025

In 2025-09, the focus was on speeding up and stabilizing visual validation for Vizzuality/amazonia-360. Delivered widget-level webshot capture with a dedicated container and performance optimizations, enabling per-widget screenshots and ~50% faster screenshot generation through networkidle navigation and removal of fixed delays. Fixed Playwright font rendering stability by disabling subpixel positioning, addressing cross-environment inconsistencies in visual tests. These changes improve CI feedback, reduce flaky UI tests, and enhance per-widget regression coverage for more reliable UI validation. Technologies demonstrated include Playwright-based test automation, performance tuning, and containerized widget rendering for scalable visual checks.

Activity

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Quality Metrics

Correctness89.2%
Maintainability86.4%
Architecture86.4%
Performance84.2%
AI Usage21.8%

Skills & Technologies

Programming Languages

CSSJSONJavaScriptMarkdownTypeScriptplaintext

Technical Skills

API IntegrationBackend DevelopmentBrowser AutomationCI/CDComponent DevelopmentCypressDevOpsFront-end DevelopmentFrontend DevelopmentFull Stack DevelopmentInternationalization (i18n)JavaScriptJotaiNext.jsNode

Repositories Contributed To

2 repos

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

GlobalFishingWatch/frontend

Dec 2025 Mar 2026
4 Months active

Languages Used

JSONJavaScriptTypeScriptplaintextMarkdown

Technical Skills

CypressDevOpsNode.jsPlaywrightReactVite

Vizzuality/amazonia-360

Sep 2025 Oct 2025
2 Months active

Languages Used

CSSJavaScriptTypeScript

Technical Skills

API IntegrationBackend DevelopmentBrowser AutomationComponent DevelopmentFront-end DevelopmentFull Stack Development