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Linh

PROFILE

Linh

Over six months, Vovan Linh contributed to Expensify/App and callstack-internal/Expensify-App by delivering 46 features and resolving 14 bugs, focusing on authentication, UI/UX, and code maintainability. He migrated identity handling from email to login-based IDs, centralized secure token management, and improved accessibility and onboarding through targeted documentation in facebook/react-native-website. Using TypeScript, JavaScript, and React Native, Vovan refactored core flows for testability, enhanced state management, and expanded automated test coverage. His work emphasized code hygiene, naming clarity, and lifecycle simplification, resulting in more robust, maintainable codebases and streamlined development processes across both frontend and full stack environments.

Overall Statistics

Feature vs Bugs

77%Features

Repository Contributions

135Total
Bugs
14
Commits
135
Features
46
Lines of code
5,461
Activity Months6

Work History

March 2026

46 Commits • 21 Features

Mar 1, 2026

March 2026 monthly summary for callstack-internal/Expensify-App: Focused on improving code quality, refactor for testability, lifecycle simplification, and expanding test coverage while delivering reliable backend changes and bug fixes. The work laid groundwork for safer evolution and faster iteration with clear business value across reporting, transactions, and user flows.

February 2026

13 Commits • 3 Features

Feb 1, 2026

February 2026 performance summary for callstack-internal/Expensify-App. Focused on stabilizing core flows, hardening security around authentication tokens, improving accessibility, and increasing maintainability through targeted refactors and tests. Deliverables reduced runtime crashes, improved lifecycle handling, and established patterns for safer token handling and URL composition.

January 2026

71 Commits • 18 Features

Jan 1, 2026

January 2026 performance summary focused on strengthening identity handling, API simplification, cross-repo parity, test coverage, and maintainability across Expensify/App and callstack-internal/Expensify-App. The work progressed key identity migrations, API cleanup, and quality improvements that reduce future friction and enable faster feature delivery.

October 2025

2 Commits • 1 Features

Oct 1, 2025

Concise monthly summary for Oct 2025 focused on improving safe handling of card expenses and maintainability within margelo/expensify-app-fork. The work emphasizes policy-compliant deletion behavior, thoughtful refactoring, and clear commit traceability to support ongoing development and risk reduction.

September 2025

2 Commits • 2 Features

Sep 1, 2025

In September 2025, delivered targeted UI improvement and code readability enhancements for margelo/expensify-app-fork, aligning with business value goals of improved user guidance and maintainable code. Implemented Money Request Confirmation Tooltip UX Enhancement by anchoring the educational tooltip to ButtonWithDropdownMenu in MoneyRequestConfirmationList, ensuring contextual help appears directly above the related button and reducing user confusion. Completed a boolean semantics refactor by renaming isCardTransactionCanBeDeleted to canCardTransactionBeDeleted, improving readability without altering behavior. These changes enhance user guidance, decrease potential support inquiries, and strengthen code maintainability for faster future iterations. Demonstrated skills include UI/UX refinement, precise commit-driven changes, and naming discipline in a React/TypeScript codebase.

August 2025

1 Commits • 1 Features

Aug 1, 2025

Delivered targeted documentation update for TextInput lineBreakModeIOS prop in the facebook/react-native-website repo. This clarifies enum values and the iOS default behavior, reducing misusage and supporting developers in implementing accurate text formatting.

Activity

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Quality Metrics

Correctness95.2%
Maintainability92.0%
Architecture91.8%
Performance91.6%
AI Usage21.0%

Skills & Technologies

Programming Languages

JSONJavaJavaScriptMarkdownNoneTypeScript

Technical Skills

Android DevelopmentCode HygieneCode ReadabilityDevOpsDocumentationESLintESLint configurationFront End DevelopmentFrontend DevelopmentFull Stack DevelopmentJavaJavaScriptJestLintingNone

Repositories Contributed To

4 repos

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

callstack-internal/Expensify-App

Jan 2026 Mar 2026
3 Months active

Languages Used

JavaScriptNoneTypeScriptJavaMarkdownJSON

Technical Skills

JavaScriptNoneReactTypeScriptVersion Controlfront end development

Expensify/App

Jan 2026 Jan 2026
1 Month active

Languages Used

JavaScriptNoneTypeScript

Technical Skills

Front End DevelopmentJavaScriptNoneReactState ManagementTypeScript

margelo/expensify-app-fork

Sep 2025 Oct 2025
2 Months active

Languages Used

JavaScriptTypeScript

Technical Skills

Code ReadabilityFrontend DevelopmentReact NativeRefactoringCode HygieneFull Stack Development

facebook/react-native-website

Aug 2025 Aug 2025
1 Month active

Languages Used

Markdown

Technical Skills

Documentation