Senior Android Mobile App Developer Kotlin, AI/LLMs, OS Integration (plus Flutter / React Native)

All requirements, questions and screenshots attached with job post here, You have to answer all the needs in your proposal. Looking for an experienced senior mobile developer to join a short-to-medium term project building and evolving a mobile app with strong Android/Kotlin foundations and deep experience integrating AI/LLM APIs. The role requires hands-on implementation, architecture guidance for AI features (on-device and cloud), and the ability to build/extend cross-platform modules (Flutter / React Native / Kotlin Multiplatform). This is not a pure UI-only role we need someone who can design secure LLM integrations, implement OS-level features, optimize performance, and mentor other engineers.