Senior Android Developer with 9+ years architecting production apps serving 1M+ users. Expert in enterprise architecture (MVVM, Clean), end-to-end encryption (LibSignal), real-time communication systems, payment processing ($5M+ GMV, 99.98% success), and advanced networking (mesh, P2P). Published apps: Dosto Messenger (10K+, 4.4★, E2E encryption) & KAMAIE SuperApp (1M+, 4.2★, multi-gateway payments). POC expertise: secure banking communications, mesh networking architecture, PTT audio systems, priority calling protocols. Proven impact: 28% repeat purchases, 35% CTR improvements, 60% delivery acceleration, 45% crash reduction.
