Cross-Platform Mobile App Development

I need an experienced software developer to create a mobile application that works on both iOS and Android platforms. The app should also have a Windows desktop version.

Key Requirements:
- Experience in developing mobile applications for iOS and Android.
- Proficiency in Windows desktop application development.
- Strong understanding of cross-platform development tools and frameworks.
- Ability to design a user-friendly interface and ensure a seamless user experience across all platforms.
- Knowledge of backend integration and database management.

Ideal Skills:
- Expertise in programming languages such as Swift, Kotlin, and C#.
- Experience with development tools like React Native or Flutter.
- Strong problem-solving skills and attention to detail.
- Good communication skills for regular project updates.

Please share your portfolio and relevant project experience.