With your world-wide voting system requiring tremendous technical finesse, my extensive skills in Flutter Development and creating scalable architectures, such as MVC and MVVM design patterns, make me the ideal match. My experience with managing databases utilizing SQLs like PostgreSQL, MySQL and NoSQL databases like Firebase and MongoDB means I'm well-versed in handling the vast amount of data that such a system would generate.
Moreover, my expertise in integrating APIs for third-party platforms ensures a seamless connection with WhatsApp, Telegram, and email, enabling convenient participation for your users. Throughout my illustrious career, I have published several apps on the Play Store, including social media apps with real-time push notifications and analytics which aligns perfectly with your requirement for live vote calculation during campaigns.
In conclusion, choosing me would mean opting for a reliable professional who values high-quality deliverables and knows how to handle a world-wide voting system with multiple simultaneous campaigns. Let's discuss further so I can provide you with a detailed FRD encompassing data management, server handling, user registration processes, and more. Thank you!