I need an experienced developer to build a full-featured social media application for Android. The core idea is similar to mainstream platforms—users create accounts, post updates, follow friends, like or comment on content, and receive real-time notifications—but I want the interface and flow to feel uniquely ours. Main tasks include: • Designing a clean, intuitive UI that follows current Material Design guidelines. • Implementing user authentication, profile management, a feed that supports text, images, and short videos, and a basic chat or direct-message component. • Setting up the backend (Firebase or another modern stack you prefer) so data syncs quickly and securely. • Delivering a tested APK along with full, well-commented source code. If you have shipped Android social apps before and can show live examples, that will help me decide quickly. Let me know your estimated timeline, the tech stack you plan to use, and any requirements you have from my side (logo, color palette, server credentials, etc.). I’m ready to get started as soon as we agree on the scope.