GeezerVison is showing www.mcodex.dev — mCodex | Full-Stack Developer & React Native Specialist

Full-Stack Developer & React Native Specialist

Building High-Performance Next-Gen Digital Solutions.

Passionate about creating exceptional mobile and web experiences with React Native, React.js, and Node.js. Building scalable applications and contributing to open source since 2015.

React Native
React.js
Node.js
TypeScript
Next.js
Rust
Mobile

1,258+ GitHub Stars

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Core Infrastructure

Architectural Specializations

React Native Specialist

Cross-platform mobile experiences with near-native performance, deep integration with device APIs, and seamless UX across iOS and Android.

Full-Stack Architecture

End-to-end engineering of scalable Node.js microservices, REST/GraphQL APIs, and real-time systems that handle thousands of concurrent users.

React Ecosystems

Sophisticated, state-driven frontends built with Next.js, React Server Components, and modular design systems focused on clean code.

Portfolio

Open Source & Featured Projects.

Tools and libraries used by thousands of developers worldwide. 1,258+ total GitHub stars.

1071

react-native-sensitive-info

🔐 React Native secure storage, rebuilt with Nitro Modules ⚡️ Biometric-ready, StrongBox-aware, and metadata-rich for modern mobile apps

react-native-sensitive-info
android
ios-keychain
ios

react-native-inappbrowser-nitro

🚀 Lightning-fast in-app browser for React Native powered by Nitro Modules. Direct JSI bindings for native performance with Safari View Controller (iOS) & Chrome Custom Tabs (Android). Zero bridge overhead, TypeScript-first, with React hooks support.

android
custom-tabs
ios
nitro-modules

react-native-rooster

High-performance, fully-customizable and accessible toast notifications for React Native. WCAG 2.2 AA compliant, fully typed, zero config.

react-native
toast
typescript
android

react-native-sized-webview

📏 React Native WebView that auto-sizes itself, trims CMS fluff, observes images/iframes/videos, and keeps your parent scroll buttery smooth—no timers, no flicker, just reliable height updates everywhere.

android
expo
expo-go
ios

react-native-nitro-sfsymbols

🍎 Render Apple's beautiful SF Symbols natively on iOS with React Native. Zero-bridge overhead, fully typed, production-ready.

ios
nitro-modules
react-native
sf-symbols

react-native-plugpag-nitro

High-performance React Native library for PagSeguro PlugPag payment terminals with TypeScript-first hooks API, real-time events, and 10x faster performance using Nitro Modules

android
nitro-modules
pagbank
react-native

View All Projects on GitHub

Core Infrastructure

Architectural Expertise & Technical Mastery.

Deep specialization across the full application lifecycle, from mobile-first frontends to scalable backend systems.

Frontend & Mobile

Next.js & React

SSG/SSR architecture, App Router mastery, and complex state synchronization.

React Native

Cross-platform performance optimization, Nitro Modules, and native module integration.

TypeScript

Type-safe architectures, generics, and advanced pattern matching.

CSS Architecture

Modular design systems, CSS Modules, Sass, and responsive layouts.

Backend & DevOps

Rust

Memory-safe, high-concurrency systems for performance-critical services and CLI tooling.

Node.js

High-throughput APIs, event-driven microservices, and real-time systems.

PostgreSQL

Query optimization, migrations, and relational data modeling.

Docker

Multi-stage builds, container orchestration, and CI/CD pipelines.

GitHub Actions

Automated CI/CD pipelines, custom runners, and matrix testing.

Featured Flagship

Featured Case Study

Wupi: Smart URL Shortener

A free URL shortener that generates short links and QR codes in under a second. Wupi also offers SmartLinks — a single short URL that redirects visitors to different destinations based on their geolocation.

Instant Short Links

Paste any long URL and get a short wupi.me link in less than one second — no sign-up required.

QR Codes & SmartLinks

Generate ready-to-share QR codes and geo-aware SmartLinks that route visitors to the nearest destination.

Built-in Analytics

Track clicks, countries, devices, and traffic sources from a clean dashboard — completely free.

Explore Wupi

Featured Project

Timestamper: UNIX Epoch Converter

A real-time UNIX epoch converter that streams the current timestamp live. Convert between epoch and human-readable dates instantly, with contextual details like day of year, leap year status, and relative time.

Live Epoch Stream

Watch the UNIX timestamp tick in real time — copy the current epoch with a single click.

Epoch Converter

Convert any UNIX timestamp to human-readable dates or vice versa, with ISO 8601 and local timezone output.

Contextual Info

See relative time, day of year, and leap year status at a glance alongside every conversion.

Explore Timestamper

Featured Project

Results Oriented

Building systems that prioritize user experience and business outcomes over tech hype.

Clean & Professional

Codebases that act as documentation with strict architectural patterns and standards.

Open Source First

Contributing tools and libraries used by thousands of developers worldwide.

A Commitment to Digital Excellence.

Strategic Insight: Bridging the gap between complex engineering requirements and exceptional user experiences.

Modern Stack: Deep expertise in React Native, React.js, Node.js, and TypeScript for today's modern landscape.

Open Source: Dedicated to uplifting the community through high-quality libraries and knowledge sharing.

Available for Partnerships

Let's Build the Future Together.

Currently focused on React Native and full-stack development. Open to strategic engineering roles and technical partnerships.

Current Engagement Status

Open for freelance & consulting opportunities.

Professional network & industry updates.

Connect

GitHub

Explore my open-source contributions.

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Direct Inquiry

The fastest way to discuss technical partnerships.

[email protected]

Ready to Architect
the Future?

Currently accepting freelance consulting and senior-level technical leadership engagements. Let's discuss your roadmap.

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