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Fedi Rajhi

PROFILE

Fedi Rajhi

Fedir worked on Expensify/App and callstack-internal/Expensify-App, delivering robust card assignment and company card management features over three months. He enhanced data security by integrating encrypted card number handling and improved reliability through advanced error management and state handling in React and TypeScript. His work included refactoring data models, optimizing loading states, and expanding test coverage to ensure maintainability and edge-case resilience. Fedir also streamlined API surfaces, improved internationalization, and introduced custom hooks for bank connection flows. The depth of his contributions is reflected in thoughtful code quality improvements, comprehensive testing, and a focus on maintainable, scalable frontend and full stack solutions.

Overall Statistics

Feature vs Bugs

83%Features

Repository Contributions

98Total
Bugs
5
Commits
98
Features
24
Lines of code
5,929,533
Activity Months3

Work History

March 2026

45 Commits • 13 Features

Mar 1, 2026

March 2026 monthly summary for callstack-internal/Expensify-App focused on accelerating card-related workflows, improving bank/ Plaid connection reliability, and enhancing internationalization and maintainability. The month delivered a refined direct card feeds experience, robust bank connection management via a new hook-based approach, and smoother card assignment with explicit refresh state handling. In addition, core readability improvements and maintenance work reduced technical debt and improved test coverage across the card feed and connection flows.

February 2026

10 Commits • 2 Features

Feb 1, 2026

February 2026 monthly summary for callstack-internal/Expensify-App focused on delivering business-value improvements through enhanced policy card data workflows and robust card data modeling, while simplifying the API surface.

January 2026

43 Commits • 9 Features

Jan 1, 2026

January 2026 focused on security, reliability, and maintainability for the card assignment and company cards experiences across Expensify/App and callstack-internal/Expensify-App. Delivered encryption-enabled card number handling in the card assignment flow, strengthened failure handling, and undertook substantial refactors to improve data models, tests, and UI reliability. Implemented loading optimizations for the company cards UI and aligned naming conventions, while enabling additional flexibility with optional domainAccountID in assignment logic.

Activity

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Quality Metrics

Correctness90.6%
Maintainability87.8%
Architecture87.2%
Performance86.8%
AI Usage23.6%

Skills & Technologies

Programming Languages

JavaScriptTypeScript

Technical Skills

API DevelopmentAPI integrationCode ReviewCustom HooksData SecurityESLintFront End DevelopmentFrontend DevelopmentFull Stack DevelopmentJavaScriptLocalizationNode.jsPerformance OptimizationReactReact Native

Repositories Contributed To

2 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

JavaScriptTypeScript

Technical Skills

ESLintReactTypeScriptcode qualityfront end developmenttesting

Expensify/App

Jan 2026 Jan 2026
1 Month active

Languages Used

JavaScriptTypeScript

Technical Skills

API DevelopmentData SecurityFrontend DevelopmentJavaScriptReactTypeScript