# Dawid - React Native Developer

## About
React Native Developer from Katowice, Poland, specializing in **mobile and web app development**. Extensive experience with **React Native, Expo, TypeScript, JavaScript**, and native development in **Swift, Objective-C, Kotlin, and Java**. Skilled in **performance optimization, native modules, multimedia apps, and advanced UI/graphics**.

## Services Offered

### React Native & Cross-Platform App Development
- Building and supporting **mobile apps** with React Native and Expo
- Developing **custom features** and **cross-platform solutions**
- Integration of **3rd-party APIs** and services
- Building **web apps** with Next.js, Astro, and React
- Code refactoring and architecture improvements
- Performance optimization for existing React Native applications

### Native Modules & Libraries
- Custom **native module development** for iOS and Android
- Integration of third-party services and APIs
- Languages: Swift, Kotlin, Objective-C, Java
- Examples: network operations modules, App Clip functionalities, audio/video players, speech recognition modules

### Multimedia & Interactive Apps
- Apps handling **simultaneous audio/video recording, playback, and speech recognition**
- Creating graphics, charts (data visualizations), and animations using Skia and Reanimated** 

### React Native Consultations & Architecture
- Technical architecture consulting
- Code review and best practices guidance
- Technology stack recommendations
- Project planning and development strategy
- Performance audits and optimization guidance

### Specialized Integrations
- **Expo plugins** and custom modules
- Integrating **3rd-party APIs** with mobile apps
- Device discovery and network scanning using **@dawidzawada/bonjour-zeroconf**
- App Clip and Instant Apps

## Technical Expertise
- **Primary:** React Native, TypeScript, JavaScript
- **Native Development:** Swift, Objective-C (iOS), Kotlin, Java (Android)
- **Frameworks:** Expo, vanilla React Native
- **Platforms:** iOS, Android, web
- **Specialties:** Native modules, performance optimization, multimedia apps, cross-platform solutions, fancy graphics and animations, network discovery (Bonjour/Zeroconf)

## Keywords
React Native developer, mobile app development, iOS development, Android development, TypeScript, JavaScript, native modules, app optimization, multimedia apps, Expo developer, cross-platform development, network discovery, Bonjour, Zeroconf, Katowice, Poland, freelance developer, mobile consultant

## Contact
Available for freelance React Native development projects and consultations.

- LinkedIn: https://www.linkedin.com/in/dawid-zawada/
- Twitter/X: https://x.com/dawidzawadadev
- GitHub: https://github.com/dawidzawada

## Location
Katowice, Poland (available for remote work)