Gasless Transaction Integration for Payment App

Project Description: We are seeking an experienced blockchain developer to implement a solution for a critical challenge within our blockchain application. Our platform operates on the Polygon network and provides each user with a wallet to manage their digital assets, specifically focusing on the deposit and transfer of USDT (Tether), a widely-used stablecoin. The Challenge: A significant hurdle we've encountered is facilitating seamless transactions for users who may not possess MATIC, the native token of the Polygon network required for paying transaction fees (gas fees). This issue can hinder user experience and accessibility, particularly for those new to the blockchain ecosystem or those who primarily deal in stablecoins like USDT. Objective: The primary goal of this project is to implement a system that abstracts the complexities of gas fees from the end-users. This system should enable users to perform transactions (such as sending and receiving USDT) without needing to hold or spend MATIC for gas fees. This approach is often referred to as "account abstraction" and is pivotal in enhancing user experience by making blockchain transactions as seamless as traditional digital transactions. Key Deliverables: Gasless Transaction Mechanism: Develop a robust mechanism that allows users to execute transactions without requiring MATIC for gas fees. This could involve the use of meta-transactions, gas stations, or any other effective account abstraction strategy suitable for the Polygon network. Smart Contract Development: Design and deploy smart contracts on the Polygon network that support the gasless transaction system. These contracts should handle the execution of user transactions in a secure and efficient manner. Integration with Existing Wallet Infrastructure: Ensure the gasless transaction system is fully integrated with our existing wallet infrastructure, allowing for a seamless user experience when managing and transferring USDT. Testing and Documentation: Conduct thorough testing of the system to ensure its reliability and security. Additionally, provide comprehensive documentation detailing the system architecture, usage, and any relevant guides for future maintenance or upgrades.