Write a desktop software & mobile software to send signal from mobile app to desktop app for placing & deleting bets on betfair exchange through desktop app with zero lag tolerance

I am looking for a skilled developer to create a desktop software and mobile software that will allow me to send signals from a mobile app to a desktop app. The purpose of this software is to place and delete bets on the Betfair exchange through the desktop app with zero lag tolerance.

Operating System Compatibility:
- The desktop software should be compatible with Windows.

Mobile Platform Compatibility:
- The mobile software should be compatible with both Android and iOS platforms.

Key Features:
- The mobile and desktop applications should have live updates, allowing for real-time information on bets and exchanges.
- The user interface should be user-friendly, making it easy for users to navigate and place bets.
- High security measures should be implemented to ensure the safety and protection of user information and transactions.

Ideal Skills and Experience:
- Experience in developing desktop and mobile applications.
- Proficiency in programming languages such as Java, C++, or Swift.
- Knowledge of Betfair exchange and betting systems.
- Strong understanding of data synchronization and real-time updates.
- Attention to detail and ability to create a seamless user experience.