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Bruno Nascimento

PROFILE

Bruno Nascimento

Bruno Nascimento developed and enhanced mobile wallet features for the stellar/freighter-mobile and MetaMask/metamask-mobile repositories, focusing on onboarding, authentication, asset management, and card functionality. He implemented cross-platform onboarding flows, secure credential storage, and multi-network support using React Native, TypeScript, and Redux. Bruno introduced internationalization, deep linking, and analytics instrumentation to improve accessibility and product insights. His work included building UI components, integrating blockchain APIs, and refining transaction history and asset management systems. He also contributed technical documentation and security architecture guides, demonstrating depth in both implementation and maintainability. The solutions addressed user experience, reliability, and scalability across platforms.

Overall Statistics

Feature vs Bugs

81%Features

Repository Contributions

71Total
Bugs
7
Commits
71
Features
29
Lines of code
100,595
Activity Months9

Work History

October 2025

14 Commits • 10 Features

Oct 1, 2025

October 2025: Delivered onboarding and card lifecycle enhancements, strengthened authentication and provisioning flows, expanded asset support, and added telemetry to enable data-driven decision making. Key outcomes include a refreshed Card onboarding experience (Welcome Screen, UI/UX tweaks, and shared components), a geolocation- and flag-driven Card button on Wallet Home with Redux-based auth integration, a new Card provisioning flow with explicit status warnings, and integrated Solana asset support with authenticated data display. Rewards analytics instrumentation now captures view, claim, and opt-in/out events with updated user traits. Reliability improvementsAddressed NaN handling in Card Home metrics and added priority Add Funds address validation to reduce error leakage. These results improve onboarding conversion, risk controls, and product telemetry, enabling faster, safer iterations across the card feature set. Technologies/skills demonstrated include React Native, Redux-based authentication, Baanx API integration, Solana asset support, UI component design (CardImage, CardWarningBox), localization, testing, and telemetry instrumentation for business decision making.

September 2025

11 Commits • 3 Features

Sep 1, 2025

September 2025 monthly performance summary focusing on delivering business value through stability, UX improvements, and cross-repo integrations. Key work concentrated on Card stability and token flow in metamask-mobile, major Perps UI/UX refinements, and the introduction of Perps deep-link navigation in metamask-extension, accompanied by analytics groundwork and end-to-end tests.

August 2025

10 Commits • 1 Features

Aug 1, 2025

August 2025 monthly summary for metamask-mobile: Card feature rollout and E2E stability improvements across the MetaMask Card initiative. Delivered end-to-end Card functionality with UI and flow enhancements, established caching for token allowances, and improved test reliability.

July 2025

5 Commits • 1 Features

Jul 1, 2025

Monthly performance summary for 2025-07 focused on MetaMask/metamask-mobile. Key feature delivered this month is the Card SDK surface and related APIs enabling card status checks, token information, and batch address checks via the Cardholder API. UI hooks were added for asset balances, allowances, and the priority card token, accompanied by translations to enable card features, token management, and internationalization. These changes advance feature readiness and reduce integration risk for card functionality.

June 2025

2 Commits • 1 Features

Jun 1, 2025

June 2025 monthly summary for stellar/freighter-mobile: Delivered comprehensive authentication flow documentation for Freighter Mobile, including a Mermaid diagram visualization of the authentication process and a thorough Markdown guide covering security architecture, authentication states and flows (sign-up, sign-in, wallet import), session management, storage details, error handling, and security considerations.

May 2025

4 Commits • 4 Features

May 1, 2025

May 2025 monthly summary for stellar/freighter-mobile focused on delivering user-centric features, multi-network capabilities, and improved transaction visibility, while updating release metadata to reflect a new product cycle. The work enhances authentication flows, network selection, and transaction insights, driving user adoption and operational clarity across mobile platforms.

April 2025

10 Commits • 3 Features

Apr 1, 2025

April 2025 focused on onboarding improvements, wallet interoperability, and asset management in stellar/freighter-mobile, complemented by UI polish and build maintenance. Delivered Import Wallet flow with recovery phrase support and a refactored authentication stack for both new and imported wallets, including secure credential storage, UI updates, error handling, and tests. Enhanced Forgot Password flow with WelcomeScreen redirection and path refinements. Launched Asset Management System enabling balances display, trustline management, and support for custom tokens, with UI refactor, testing, and framework setup. Resolved a visual edge case on BottomSheet and undertook maintenance to refresh dependencies, version codes, build configurations, and log cleanup to improve build reliability. These changes drive higher onboarding conversion, broader wallet compatibility, better asset visibility, and stronger release stability.

March 2025

13 Commits • 4 Features

Mar 1, 2025

March 2025: Focused on multi-language support, onboarding reliability, and platform modernization to enable broader reach and stronger user retention. Delivered foundational i18n groundwork across the Freighter Mobile app, expanded the UI toolkit for better input handling, completed a comprehensive onboarding and wallet creation flow, improved app stability with splash-screen behavior fixes and enhanced auth error visibility, and modernized the platform by upgrading React Native and migrating network state from Redux to Zustand. These efforts reduce onboarding friction, improve global accessibility, and establish a scalable foundation for future features.

February 2025

2 Commits • 2 Features

Feb 1, 2025

February 2025 monthly summary for stellar/freighter-mobile: Implemented two cross-platform features focused on onboarding UX and content usability, with tests and linting improvements to sustain quality and reliability. These changes enhance user onboarding flow and external linking capabilities, contributing to better engagement and developer velocity.

Activity

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Quality Metrics

Correctness92.0%
Maintainability89.2%
Architecture87.6%
Performance84.0%
AI Usage34.4%

Skills & Technologies

Programming Languages

GherkinGradleJSONJavaJavaScriptKotlinMarkdownObjective-CRubySVG

Technical Skills

API IntegrationAnalyticsAndroid DevelopmentAuthenticationBackend DevelopmentBatch ProcessingBlockchain WalletsBuild SystemsCachingCode Ownership ManagementCode RefactoringComponent ArchitectureComponent DesignComponent DevelopmentComponent Library

Repositories Contributed To

3 repos

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

MetaMask/metamask-mobile

Jul 2025 Oct 2025
4 Months active

Languages Used

JSONJavaScriptTypeScriptYAMLJavaKotlinObjective-CSVG

Technical Skills

API IntegrationBatch ProcessingCode Ownership ManagementContext APIDevOpsError Handling

stellar/freighter-mobile

Feb 2025 Jun 2025
5 Months active

Languages Used

JavaScriptKotlinRubySVGSwiftTypeScriptXMLGradle

Technical Skills

Android DevelopmentComponent DevelopmentDependency ManagementNative Module IntegrationReact NativeSplash Screen Implementation

MetaMask/metamask-extension

Sep 2025 Sep 2025
1 Month active

Languages Used

JavaScriptTypeScript

Technical Skills

Deep LinkingFront End DevelopmentJavaScriptTestingTypeScript

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