As an experienced full-stack developer specializing in Javascript MVC frameworks like React Native and Angular, I believe I am uniquely qualified for your mobile app project. My 5+ years of significant expertise in web and hybrid mobile app development has endowed me with a deep understanding of efficient code structure, scalable architectural designs, and effective problem solving. Your specific requirements for compatibility with both iOS and Android, a user-friendly interface for task management, push notifications system, data encryption, and secure storage perfectly align with my skillset.
Moreover, I have a solid comprehension of database management and cloud integration, which are paramount to seamless syncing across devices that you seek. My broad experience in utilizing other libraries such as D3.js and FabricJS proves my adaptability and ability to incorporate various functionalities into your app elegantly.
At the core of my practice is client satisfaction - timeliness, attention to detail, and ongoing communication are values I hold dear. Please feel free to view my portfolio or request more information about previous projects similar to yours. Let's work together to create a powerful tool that enhances users' productivity within a secure framework.