React Native • iOS • Android | Scalable & Secure Mobile Applications
Senior Mobile Developer with 8+ years of experience building production-grade mobile applications for Android and iOS, specializing in React Native. Experienced in designing scalable mobile architectures, optimizing performance, implementing security best practices, and leading mobile teams in remote and cross-functional environments.
- 8+ years of experience in mobile application development
- 5+ years of hands-on experience with React Native
- Strong expertise in iOS and Android native development (Swift, Kotlin, Java)
- Experience building secure, scalable mobile applications with modern architecture patterns
- Strong background in mobile architecture, performance optimization, and security
- Experience leading and mentoring mobile engineers
- Comfortable working with remote teams and international stakeholders
- Available for multiple time zones: UK/EU (UTC+0 to UTC+2), Australia (UTC+8 to UTC+10)
- React Native (TypeScript, JavaScript) - Primary focus
- Android: Kotlin, Java (Native development)
- iOS: Swift (Native development)
- Cross-platform mobile architecture
- Clean Architecture
- MVVM
- Modular Architecture
- Scalable State Management
- Node.js (REST APIs, backend integration)
- AWS (EC2, S3, RDS, CloudWatch)
- API Integration & Design
- Backend collaboration experience
- React (Web applications)
- Next.js (React framework, SSR, SSG)
- Vite (Build tool, development)
- Web frontend development experience
- Firebase (Crashlytics, FCM, Analytics)
- Sentry (Error Tracking & Performance Monitoring)
- Push Notifications (FCM, APNs)
- REST APIs & OAuth Authentication
- CI/CD (GitHub Actions, Bitrise)
- App Store & Google Play deployment
- Unit & Integration Testing
- SSL Pinning (Certificate & Public Key Pinning)
- Encryption (AES, RSA, Data-at-Rest & Data-in-Transit)
- Jailbreak/Root Detection (iOS & Android)
- Secure Storage & Keychain Management
- API Security & Authentication
As a Senior Mobile Developer and Lead Mobile Engineer, I have:
- Led and mentored teams of up to 5+ mobile engineers
- Built and maintained production React Native applications
- Defined mobile coding standards and best practices
- Designed scalable mobile architectures and component libraries
- Conducted code reviews and architectural discussions
- Collaborated closely with Product Managers, Designers, and Backend Engineers
- Acted as the technical owner for mobile initiatives
- Delivered mobile applications used by thousands of users
- Built scalable React Native applications with clean architecture
- Improved app performance and startup time significantly
- Reduced crash rates through better architecture and monitoring (Sentry, Firebase)
- Successfully shipped multiple apps to App Store and Google Play
- Implemented security features: SSL pinning, encryption, jailbreak detection
- Optimized mobile apps for performance and user experience
- Seeking opportunities in Australia, UK, and EU (Remote or On-site)
- Open to Remote roles (preferred)
- Open to Overseas / International opportunities
- Comfortable working across time zones (UTC+0 to UTC+10)
- Available for:
- UK: London, Manchester, Edinburgh (UTC+0/+1)
- EU: Berlin, Amsterdam, Paris, Barcelona, Dublin (UTC+1/+2)
- Australia: Sydney, Melbourne, Brisbane (UTC+8 to UTC+10)
This GitHub showcases:
- Production-quality React Native projects
- Clean Architecture examples for mobile apps
- Scalable mobile app structures and patterns
- Security implementations (SSL pinning, encryption, jailbreak detection)
- Best practices for real-world mobile applications
- Performance optimization techniques
- LinkedIn: https://linkedin.com/in/mnashrullah/
- Location: Jakarta, Indonesia (Remote-friendly)
⭐ "I build mobile applications that scale, perform, and last."