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Cedric van Putten

PROFILE

Cedric Van Putten

Cedric contributed to the Expo and React Native ecosystems by building and refining developer tooling, focusing on reliability and maintainability. On the mrousavy/expo and facebook/metro repositories, Cedric improved end-to-end test infrastructure, standardized environment variable management with a modular TypeScript API, and resolved Android Hot Module Replacement issues over HTTPS proxies. He addressed Metro Bundler’s ESM import resolution using JavaScript and Node, enhancing module graph accuracy. Cedric also fixed navigation compatibility in expo/examples, ensuring stable integration with legacy libraries. His work emphasized documentation-driven releases, robust configuration, and targeted bug fixes, demonstrating depth in Android development, CLI tooling, and front-end testing.

Overall Statistics

Feature vs Bugs

43%Features

Repository Contributions

10Total
Bugs
4
Commits
10
Features
3
Lines of code
356
Activity Months6

Work History

September 2025

1 Commits

Sep 1, 2025

September 2025 monthly summary for the expo/examples team focused on stabilizing user-facing example code by addressing compatibility with legacy libraries and improving maintainability.

May 2025

2 Commits

May 1, 2025

May 2025 monthly summary for facebook/metro focusing on key accomplishments, major bug fixes, overall impact, and technologies demonstrated. The month centered on stabilizing module graph construction and dependency collection via targeted Metro Bundler fixes and strengthened test coverage.

March 2025

1 Commits

Mar 1, 2025

March 2025: Focused on reliability and documentation around the Expo URI scheme CLI. Delivered a targeted bug fix for escaping special characters in the npx uri-scheme open <url> workflow and prepared release notes for v1.4.0. The change is documentation-driven and does not alter runtime behavior, reinforcing CLI predictability for developers. Release included a single commit and updated changelog to reflect the new version.

January 2025

3 Commits • 1 Features

Jan 1, 2025

January 2025 performance summary focusing on delivering business value and technical excellence across Expo and React Native repos. Key accomplishments include publishing @expo/env v1.0.0 with a modular API refactor for environment variable management, and fixing Android HMR connectivity over HTTPS proxies to align with iOS behavior. These efforts reduce configuration complexity, improve maintainability, and decrease dev-time friction for mobile apps built with Expo and React Native.

December 2024

2 Commits • 1 Features

Dec 1, 2024

December 2024: Delivered enhancements to the Expo CLI end-to-end (E2E) test infrastructure to improve reliability, observability, and onboarding for developers. The work focused on standardizing the E2E test setup, enhancing logging, and aligning Jest configuration across the repository to reduce churn and improve test predictability.

November 2024

1 Commits • 1 Features

Nov 1, 2024

November 2024 monthly summary for expo/eas-cli: Focused on release hygiene and documentation accuracy. Delivered a version bump to v13.0.1 and updated README.md with links reflecting the new version tag, ensuring docs align with the codebase. The change is backed by commit 9e55fcbe7c87256cb79ada5bc375c7f8f5dedff8 (v13.0.1) which updates the version in the README and source references.

Activity

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Quality Metrics

Correctness96.0%
Maintainability92.0%
Architecture90.0%
Performance88.0%
AI Usage32.0%

Skills & Technologies

Programming Languages

JavaJavaScriptMarkdownTypeScript

Technical Skills

Android DevelopmentBabelCLI DevelopmentConfigurationDocumentationHot Module ReplacementJavaScriptMetro bundlerNavigationNodePackage ManagementReact NativeRelease ManagementTestingTypeScript

Repositories Contributed To

5 repos

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

mrousavy/expo

Dec 2024 Mar 2025
3 Months active

Languages Used

JavaScriptTypeScriptMarkdown

Technical Skills

CLI DevelopmentConfigurationTestingPackage ManagementRelease ManagementDocumentation

facebook/react-native

Jan 2025 Jan 2025
1 Month active

Languages Used

Java

Technical Skills

Android DevelopmentHot Module ReplacementReact Native

facebook/metro

May 2025 May 2025
1 Month active

Languages Used

JavaScript

Technical Skills

BabelJavaScriptMetro bundlerNodefront end developmenttesting

expo/eas-cli

Nov 2024 Nov 2024
1 Month active

Languages Used

Markdown

Technical Skills

DocumentationVersion Control

expo/examples

Sep 2025 Sep 2025
1 Month active

Languages Used

TypeScript

Technical Skills

NavigationReact NativeTypeScript

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