As a skilled web and mobile developer, I understand the importance of accuracy, reliability, and automation in managing multiple accounts on platforms like Binance. My proficiency in blockchain technology perfectly aligns with your project's requirements. Using the factors you provide, I can effortlessly develop a program that will automatically replicate each operation made in your main account into your desired sub-accounts. If needed, I can even extend this functionality to incorporate other exchanges like Bit2Me and YouHodler for added diversification.
With my deep understanding of modern web frameworks such as React and Vue, as well as backend technologies like Node.js, I can ensure that this solution will be fully scalable and robust. By leveraging my expertise in cloud services and database management, I'll employ the best practices for this project to guarantee not only seamless experience but also data security.
Furthermore, my experience isn't limited to just building applications but also e-commerce platforms to social media apps - which demonstrates my ability to tailor solutions perfectly to unique user needs. Let me assure you that by entrusting me with this task, you'd be guaranteed an elegant yet efficient solution that would save you both time and effort on manual account management thoroughly increasing your operational efficiency and reducing risks.