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Rodrigo Lino da Costa

PROFILE

Rodrigo Lino Da Costa

Rodrigo contributed to Expensify’s codebase by delivering foundational improvements across Expensify/App and Expensify/expensify-common, focusing on both feature development and bug resolution. He standardized payment type representations by introducing new constants, enabling consistent analytics and vendor integrations. Rodrigo enhanced eReceipt rendering and custom field validation, aligning submodule dependencies to reduce build drift. He addressed Android telemetry crashes and stabilized ESLint configurations, emphasizing clean code and robust dependency management using JavaScript and TypeScript. In callstack-internal/Expensify-App, he optimized React component performance by refining memoization and prop handling, resulting in faster UI updates and improved maintainability in high-activity front-end workflows.

Overall Statistics

Feature vs Bugs

50%Features

Repository Contributions

20Total
Bugs
4
Commits
20
Features
4
Lines of code
17,528
Activity Months4

Work History

February 2026

4 Commits • 1 Features

Feb 1, 2026

February 2026: Expensify-App (callstack-internal) delivered performance and correctness enhancements targeted at the PureReportActionItem flow and related React components. The work focused on simplifying the component prop surface, strengthening memoization, and aligning implementations with coding standards to reduce rendering overhead and prevent UI inconsistencies during rapid updates. This included consolidation of commits to remove dead props, fix stale references, and ensure stable scroll/edit behavior across the ReportActionItem pathway. Overall, the month improved UI responsiveness, stability, and maintainability in a high-activity area of the front-end, with practical business value in faster render cycles and fewer UI glitches during report actions processing.

January 2026

8 Commits

Jan 1, 2026

Monthly summary for 2026-01 focusing on key accomplishments, business impact, and technical excellence across all repos touched this month.

September 2025

7 Commits • 2 Features

Sep 1, 2025

September 2025 monthly summary for Expensify/App: focused on stabilizing dependencies, enhancing eReceipt rendering, and hardening custom field validation. Delivered three major outcomes: 1) Submodule dependency updates aligning Mobile-Expensify and related submodules with the correct dependency versions, reducing build drift. 2) Distance eReceipt support and rendering improvements with more reliable detection and improved rendering for image sources and future PDF-based eReceipts, including cleanup. 3) Custom field validation improvements ensuring fields with defaults are not required when missing, preventing false positives. Impact includes increased build stability, improved eReceipt UX, and more reliable data validation. Demonstrated skills in multi-repo coordination, UI rendering considerations, and validation logic, using Git submodules, refactoring, and cleanup across the codebase.

December 2024

1 Commits • 1 Features

Dec 1, 2024

December 2024: Delivered foundational standardization for payment type representations across the codebase. Implemented new constants PAY_AT_HOTEL and PAY_AT_VENDOR in CONST.ts and extended the PAYMENT_TYPE object in Expensify/expensify-common to enable consistent cross-repo usage and future enhancements. This groundwork reduces ambiguity in payment handling, streamlines analytics, and supports scalable vendor integrations. No major bugs fixed this month.

Activity

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Quality Metrics

Correctness90.0%
Maintainability88.0%
Architecture86.0%
Performance90.0%
AI Usage25.0%

Skills & Technologies

Programming Languages

GitJSONJavaScriptTypeScript

Technical Skills

Constants definitionFront End DevelopmentFront-end DevelopmentFrontend DevelopmentFull Stack DevelopmentJavaScript developmentMobile DevelopmentReactReact NativeSubmodule ManagementTypeScriptclean codedependency managementfront end developmentlinting

Repositories Contributed To

3 repos

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

callstack-internal/Expensify-App

Jan 2026 Feb 2026
2 Months active

Languages Used

TypeScriptJavaScript

Technical Skills

TypeScriptclean codefront end developmentFront End DevelopmentFull Stack DevelopmentReact

Expensify/App

Sep 2025 Jan 2026
2 Months active

Languages Used

GitJavaScriptTypeScript

Technical Skills

Front-end DevelopmentFrontend DevelopmentMobile DevelopmentReact NativeSubmodule ManagementTypeScript

Expensify/expensify-common

Dec 2024 Jan 2026
2 Months active

Languages Used

TypeScriptJSONJavaScript

Technical Skills

Constants definitionJavaScript developmentdependency managementlintingpackage management

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