Android Social Media App Build

I need an experienced Android developer to create a full-featured social media application. The build is strictly for Android, and the core experience must revolve around three pillars: real-time messaging, smooth photo/video sharing, and rich user profiles that users can edit and personalize. The flow I have in mind is simple: users sign up, set up a profile, connect with others, exchange messages instantly, and post or browse multimedia content without lag. A clean Material Design interface is important, but efficiency and stability come first. Please choose the most appropriate tech stack—Kotlin or modern Java for the client side, and any reliable backend combination (Firebase, Node.js, or equivalent) that supports real-time data syncing, secure file storage, and push notifications. Deliverables • Production-ready APK plus full source code in a Git repo • All three core features—Messaging, Photo/Video Sharing, User Profiles—fully functional on Android 10 and above • Basic analytics and crash reporting integrated • Clear build/run instructions and brief API documentation Acceptance criteria The app installs cleanly, launches in under two seconds on a mid-range device, sends/receives messages in real time, uploads a 15 MB video in under 30 seconds on Wi-Fi, and stores user profile edits persistently. If this scope fits your skills and you can commit to timely, transparent communication, I’m ready to get started right away.