EXCEEDS logo
Exceeds
mazevedo

PROFILE

Mazevedo

Over 18 months, this developer delivered over 200 features and 70 bug fixes to the wikimedia/wikipedia-ios repository, focusing on user-facing enhancements, data integrity, and scalable architecture. They built dynamic tab navigation, integrated personalized Year in Review and Did You Know features, and modernized search and history flows. Their technical approach emphasized Swift and SwiftUI, leveraging MVVM and Coordinator patterns, Core Data for persistence, and actor-based concurrency for safe parallel data access. They improved localization, accessibility, and analytics instrumentation, while refactoring legacy Objective-C code and strengthening migration strategies, resulting in a more reliable, maintainable, and user-centric iOS application.

Overall Statistics

Feature vs Bugs

74%Features

Repository Contributions

657Total
Bugs
74
Commits
657
Features
208
Lines of code
5,423,240
Activity Months18

Work History

April 2026

24 Commits • 10 Features

Apr 1, 2026

April 2026: Delivered UI polish and reliability improvements with a focus on navigation bar UX, data access stability, typography consistency, and widget image rendering. Key outcomes include a more usable navigation experience, safer data access on the main thread, consistent typography, higher-resolution widget images, and targeted localization and crash fixes that reduce support overhead.

March 2026

67 Commits • 17 Features

Mar 1, 2026

March 2026 monthly highlights for wikimedia/wikipedia-ios. The team focused on streamlining the search UX, improving search history capabilities, applying UI polish and theming, and laying the groundwork for instrumentation and localization. Reliability and performance improvements were pursued through structured tasks and safer concurrency patterns, alongside targeted bug fixes in toasts, login flows, and presentation. Key outcomes include a cleaner search experience with the removal of in-view search bars in Explore and Article views and the addition of a dedicated search button; richer search history with embedded UI and callouts; comprehensive UI/UX refinements across typography, iconography, and navigation; instrumentation and localization groundwork to enable telemetry and pluralization; and stability improvements around toasts, login callbacks, and view-model lifecycles. These changes drive faster content discovery, more consistent UI across devices (including iPad), and better overall reliability and developer observability.

February 2026

29 Commits • 7 Features

Feb 1, 2026

February 2026 highlights for wikimedia/wikipedia-ios: Delivered a refreshed search-history UX and modernized navigation architecture, along with platform readiness and UI reliability improvements. Key outcomes include embedding the history view into search with a fetch limit and thumbnails and removing the legacy History tab; adopting container-based search VCs and an article coordinator; history view enhancements with consistent delete-key usage and a History title; iOS 17+ deployment targeting and CI workflow updates; plus UI fixes for nav-bar visibility, language bar behavior, delete-all state, and cleanup of UI props and TextKit 1 dependencies. Also added taís as a contributor.

January 2026

6 Commits • 3 Features

Jan 1, 2026

January 2026 (wikimedia/wikipedia-ios): Delivered a mix of critical data integrity fixes, developer productivity improvements, and user-facing feature refinements. Key outcomes include a migration integrity fix for saved articles, reduced development log noise for faster debugging, extension of the survey participation window, UX-focused Activity Tab refinements, and localization polish for Chinese pluralization. These efforts improved data accuracy, developer velocity, user engagement, navigation usability, and localization clarity, contributing to higher quality releases and better user experience.

December 2025

17 Commits • 5 Features

Dec 1, 2025

December 2025 delivered user-centric features, stability improvements, and richer analytics for wikimedia/wikipedia-ios. Key work included an in-app Wikipedia User Contributions Web View, Activity tab UX refinements, expanded telemetry, and curated experiment lifecycle improvements, underpinned by QA-driven refactors. These changes reduce friction for readers and contributors, improve data quality for product decisions, and strengthen app reliability.

November 2025

70 Commits • 23 Features

Nov 1, 2025

Month: 2025-11 Key Features Delivered: - Actor-based concurrency for ActivityTabDataController to enable safe parallel data access, improving stability when rendering activity data under load. (Commit: 8f4fbc47a54ecc085e65ec638c9554546c029a64) - Data layer and persistence improvements: added managed object context usage for article fetching, initialized/synced WMFData store, and incremental updates for saved article state to keep UI in sync with storage. (Commits: ca7ccbb70b5050578b96860c733e7ba0eba9383d; 31e06bf92febdfac6ad7d0e8bbeab1e1e49a5db4; 2cbf2ac8fb4e4c78fe09be82bcced111513d3736) - Activity tab and view model refactors: split read and saved view models and made child view models responsible for their own data fetching, enabling more predictable data flows. (Commits: 6edead573f665ac8b576b2af4048af6d13aa5465; 2675784ab20b6ffca2b8dbe9b5a540728c937eb3) - Saved articles data controller and migration support: introduced WMFSavedArticlesDataController, exposed saved counts and metadata (last saved date, thumbnail), plus migration flag management and reorganization of related history code. (Commits: d09ee76c3bbb19401cd12664955d01417a45c61a; 76abc2e392d19ddf3731e260e7633d34c20510b3; 4089814b9f8536d47b25392fb6893c855b91db6b; 5080f180260372eaeb048640fbd2ef47156de3e8; 6335a3448c550f2fc7612467b323cf184b4ab6d7; 3f1c51a776f94696d33833e97bf5477997339133) - Core Data / WMFData integration and migration improvements: refactored data models, decoupled contexts, background migrations, batch deletes, and a streamlined migration strategy for safer data evolution. (Commits: 5cc8392ea5a9660366c681e8e16571a19b4e49b1; 811fab01dab6e05a1f5572367f2675c233948969; bc38b39903850102e17c37170f1b43c6fe97ebb3; 29dff7a3a21a207877fcd9ec572ff5ca4d5cbf4a; 45e813dcbd8dd3bd0ca15131e171aac620d3aa26; 656b9d3c10544d9a993507149125ffa5037f9ebd; 5a5b722f8809120be42e8d535d559afa4a5af9b6; 5c08ded9dd6ef0bf81fb0e9c70e906c2531f215a; 3416542dcd1e9e94c5228bc887b97ac8b698c1a1; 8f0f87d4d95d2f631fb0f8567f5d47bd34497e13; 707b9543a1a54314ade67ea0d4c56a6c869d83a6; 39437315f2d794cabfed3ccd62466cc617c8667c; 884c7c3dbdea52e40ff8aeac410cdbb166a95fe3) - Access level and data cleanup fixes: corrected access level handling and removed pageviews with no saved data to ensure correct permissions and data integrity. (Commits: 68c3abc0fa01b45cc3c655384d157641fd11ba59; b8c7c7bf169f229e23aa57834e50e2212f16e103; 527bcaeab43ee32b51f013f4174630aa8b98d6f2) - Swift concurrency updates and resilience: migrated SavedStateMigrationManager to use detached tasks and Swift 6 concurrency patterns, aligning background tasks with the main actor and improving thread safety. (Commits: acd9c69211a6ade8ec2de2dfd8200814cabe1b91; fa188843f6a50f43e6513cb300b46d273f5479b3) - UI/UX and developer ergonomics: added overflow menu actions to Activity tab, image and symbol handling with a singleton image data controller, and performance-focused changes such as limiting image thumbnail fetch to 3 per article. (Commits: a268f7b1fe5a708096ef6b25aed8e979967874be; f4bdac40ea56d63cb1efb8b73b302f07a23663bf; 0848c097920b9d7b9386dff99eb4073f3aec5dca; 130ea0c641bcc7f27688828cb01d164ccd57aff2) - Timeline, URL, and experiment hygiene: timeline improvements with saved items, URL creation refactor with main actor adoption, and improved experiment start-date handling and gating migrations by feature flags. (Commits: 0323cc1909516fc5852ae2829884be457c544b44; 524ddf5ec2be7a0d49d3dc131d1b4a7a7f1dd400; fabee9920f3f318def15f1d26b126b2a9cf0a1f6; 701c1f4ba007e4faf451e100c3956b87e7cba176; fe4e7d3570e19a73a3f0604af8fc8c3f6ac48f21; 19567032e747dcaa3af3a68b258b494fd498b745) - Legacy migration and thread-safety: migrated legacy articles on sync, ensured main-thread execution for legacy context ops, and guarded migrations with feature flags to minimize risk. (Commits: 033e1df89098912561369d92c3b9addedd2bcf40; 47407059bd49db662fd59a5ff0ac9f64ec2b01b4; 709bda53911529354a5f8cbcaa90b495ee710b2c; 19567032e747dcaa3af3a68b258b494fd498b745) - Experimentation and toggles: added activity tab experiment with sorting and granular toggles to facilitate A/B testing. (Commit: 54404df0a814d59994df7df3f1a473f67a1ec8f8) - Global user information: introduced WMFGlobalUserInfoDataController to fetch and display global edit counts, aligning UI with network-backed metrics. (Commits: 25de9fe668f30041ae4ae12d54e62327cacd2b14; ceacc1a7e6eaea108daba31b63a541418e732767; 84f87f1ca5e93f4567f71fb4f628908b73d5209d) - Saved items in timeline: added saved items to timeline view to improve discoverability of saved content. (Commit: 0323cc1909516fc5852ae2829884be457c544b44) - Objective-C wrapper improvements and page object handling: improved logging checks and reduced unnecessary object passing for better stability and maintainability. (Commits: cddf97f309848f9e9c40e1a3e4a7e4fed380707f; cef8fce073deee9a41c168d090629d8e4a0953d5) - Additional quality and hardening: code cleanup, naming clarity improvements, and removal of obsolete comments/functions to maintain a lean codebase. (Commits: 8d71b65eef2cdb20a80fef213cf250d616ea87fd; 42a6a6f955bb29a28014daee1c44a25de1346c5c; 63fe56b89d6588a1ab469270d9ce4c99f887ac96)

October 2025

27 Commits • 7 Features

Oct 1, 2025

2025-10 monthly summary for wikimedia/wikipedia-ios: Focused on improving discovery and reliability through related content, streamlined tabs loading, UI polish, and stability fixes. Delivered a robust Related Articles and Recommendations flow with randomized recommendations, previews, sharing, and direct article opening. Consolidated and simplified the tabs loading flow by moving did-you-know and related articles fetching to the Tabs Coordinator, and triggering loads on view load. Implemented UI polish including font sizing controls and animations for faster perceived performance. Addressed scrolling stability and did-you-know gating in multi-tab scenarios, and introduced data handling fixes and test adjustments. Added Assignment Behavior Enhancement to let users keep current assignments after the deadline, aligning with UX expectations and reducing churn. Technologies: Swift, Coordinator pattern, asynchronous data handling, UI animations, font tokens, and code quality improvements.

September 2025

57 Commits • 21 Features

Sep 1, 2025

September 2025 monthly summary for wikimedia/wikipedia-ios focusing on delivering core UI features, robustness improvements, and scalable architecture. Key outcomes include deterministic A/B bucketing for fundraising banners, asset handling enhancements, Year in Review highlights (UI, data models, slides, localization, and sharing), Did You Know integration into the main app, and a concurrency architecture upgrade (MainActor-based coordination) to improve reliability and performance across tab flows. The work emphasizes business value through improved experiment reliability, asset stability, richer user-facing features, and safer, scalable code paths.

August 2025

65 Commits • 23 Features

Aug 1, 2025

Monthly summary for wikimedia/wikipedia-ios (2025-08). This month concentrated on delivering a more robust and engaging Dynamic Tabs experience, strengthening navigation, and expanding did-you-know features, while stabilizing the codebase through targeted refactors and bug fixes. The work emphasizes business value through improved user engagement with tabs, higher reliability, and expanded analytics for product experiments.

July 2025

69 Commits • 25 Features

Jul 1, 2025

July 2025 (wikimedia/wikipedia-ios) delivered key features, reliability fixes, and UX improvements that strengthen performance, accessibility, and localization while expanding dynamic tab capabilities and article navigation. Major outcomes include a scalable UI architecture with a reusable article preview component, new article tab scaffolding, consolidated localization strings, and a revamped navigation/search experience. Significant bug fixes reduced load and navigation issues, improved history loading reliability, and stabilized scroll behaviors. These efforts enhanced user value by enabling faster access to content, more accessible controls, and broader language support, while strengthening the codebase for future feature work.

June 2025

36 Commits • 13 Features

Jun 1, 2025

June 2025 performance summary for wikimedia/wikipedia-ios: Key features delivered, major bugs fixed, and overall impact. Implemented HTML link sanitization for non-English characters with tests; enhanced tab navigation UX by pre-selecting the current tab and deferring scrolling for accurate geometry; revamped history module with new view/controller and lifecycle management; added instrumentation and analytics coverage for tab events and context menu actions; UI polish including RTL adjustments, typography/color updates, and stability fixes for iPad layouts; stabilized search UI with localization and a recently searched view, including test updates and a production toggle. Also performed selective refactors and cleanup to reduce configuration debt and handle edge cases gracefully.

May 2025

18 Commits • 3 Features

May 1, 2025

May 2025 monthly summary focused on delivering user-facing enhancements for article viewing in wikimedia/wikipedia-ios, with analytics instrumentation enabling data-driven iteration and cross-device stability improvements.

April 2025

39 Commits • 9 Features

Apr 1, 2025

April 2025 performance summary focusing on delivering features, fixing critical issues, and laying groundwork for scalable experimentation and testing. Key work concentrated on async temp account status checks, authentication flow enhancements, UI/UX refinements across editor, talk pages, and Activity tab, plus robust test infrastructure and localization efforts. The team improved editor onboarding flow, security testing reliability, and release readiness while establishing groundwork for A/B experimentation and maintainable code health.

March 2025

33 Commits • 14 Features

Mar 1, 2025

March 2025 (2025-03) focused on delivering a refined article reading and sharing experience in wikimedia/wikipedia-ios, while strengthening stability and release-readiness. Key features and UX improvements were shipped for article previews, reading list saving, and sharing, complemented by UI/empty-state refinements and context menu updates. The team also implemented stability fixes, targeted refactors, added history tests, and advanced release readiness through version bump and deployment verifications. These efforts improve content discovery, save/share workflows, and overall app reliability, enabling faster time-to-value for users and a smoother path to production.

February 2025

31 Commits • 8 Features

Feb 1, 2025

February 2025: Delivered core analytics and UI improvements across wikimedia/wikipedia-ios, with a strong emphasis on business value and technical robustness. Implemented end-to-end article source tracking, refined impression logging, and expanded history data handling, while optimizing the iPad UX and refreshing UI icons. Completed essential maintenance tasks to ensure stability and test reliability (schema bump, test updates, cleanup).

January 2025

30 Commits • 6 Features

Jan 1, 2025

January 2025: Delivered key features and improvements in wikimedia/wikipedia-ios, focusing on reliability, accessibility, and privacy, with measurable business value through improved data accuracy, UX, and compliance. Major work includes YiR funnel integration with version 2.0.0, robust accessibility and Find in Page improvements, YiR Saved Articles UI/assets refresh, History day headers, and privacy-conscious changes to Profile Login. Also performed localization cleanups and UI polish to support scale and multi-language support.

December 2024

9 Commits • 2 Features

Dec 1, 2024

December 2024 monthly summary for wikimedia/wikipedia-ios: Focused on delivering personalized in-app experiences and localization improvements, complemented by maintenance work to stabilize builds and tests. Key items include: (1) Year in Review personalization and in-app experience: dynamic personalized slides for saved articles, localization-ready content, in-app navigation for related links, and gating of personalized slides to logged-in users; includes language-aware links for data usage information. (2) Learn More URLs localization for InsertMediaSettings: language-aware URLs (Special:MyLanguage) with user language code appended via uselang to ensure localized help content. (3) Maintenance and Testing Fixes: non-user-facing cleanup including build schema improvements, test data corrections for Year in Review, and a localization comment typo fix.

November 2024

30 Commits • 12 Features

Nov 1, 2024

November 2024 at wikimedia/wikipedia-ios delivered impactful Year-in-Review (YiR) enhancements, workflow improvements in Settings, and expanded localization, underpinned by solid data engineering and accessibility work. Key YiR enhancements included a redesigned UI/UX with a feature announcement frame, shareable view, profile and notification badges, updated intro copy, and a badge refresh flow after viewing YiR, plus a survey trigger after two slides and navigation guards to prevent overshooting slides. Region-based donation button visibility was introduced to tailor fundraising UI by country. In-app WebView improvements streamlined information access and focus. Internationalization and localization broadened reach with IT and ES additions, localization string updates, and a bug fix for Italian localization. Data-quality and architecture improvements were realized through Saved Articles data handling (Core Data persistence, per-period retrieval, and personalized saved count UI) and a Data Controller refactor moving count logic from the view model to the data controller. Accessibility and UI polish were enhanced (labels, tap targets), and stability gains came from test fixes and a release bump to version 7.6.3.

Activity

Loading activity data...

Quality Metrics

Correctness91.0%
Maintainability88.6%
Architecture87.0%
Performance86.8%
AI Usage21.0%

Skills & Technologies

Programming Languages

JSONJavaScriptLocalizable StringsMarkdownNoneObjective-CPlistSVGShellStrings

Technical Skills

A/B TestingA/B Testing ConfigurationAPI IntegrationAccessibilityAnalyticsAnimationAsynchronous ProgrammingAuthenticationBug FixesBuild ConfigurationBuild ManagementCachingCode CleanupCode FormattingCode Organization

Repositories Contributed To

1 repo

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

wikimedia/wikipedia-ios

Nov 2024 Apr 2026
18 Months active

Languages Used

Localizable StringsObjective-CSwiftXMLXcodestringsJavaScriptStrings

Technical Skills

AccessibilityBuild ManagementConfiguration ManagementCore DataData ManagementData Modeling