Project Title: Build a Real-Time Skill-Based Tap Reaction Game App (Full Stack – Android + Backend) Project Summary: We are building TapWar — a real-time, reaction-based mobile game where users compete by tapping a button as fast as possible when prompted. The fastest tap wins. The app must be legally compliant in India, bot-proof, and scalable for mass adoption. We need a full-stack developer who can build the entire system end-to-end: mobile app (Android), backend server, wallet logic, and admin control panel. Scope of Work: Mobile App (Android) • User registration via OTP • Wallet screen (balance, add money, withdraw) • Game lobby with countdown • Tap challenge screen with randomized trigger • Result screen showing tap time, rank, reward • Game history & leaderboard • UPI withdrawal integration • Basic UI/UX (clean, fast, responsive) Backend Server • Secure tap time capture (server-side only) • Bot fallback logic (solo mode with adjustable bot speed) • Winner selection logic • Wallet management (entry fee deduction, reward credit) • UPI payout API integration • Game logs, result audit trail • Anti-cheat system (tap speed validation, device fingerprinting, TLS spoofing block) Admin Panel (Web) • Set entry fee, reward pool, number of winners • View game-wise profit, user stats, flagged accounts • Control bot difficulty, payout ratio • Monitor real-time game logs and user activity Security Expectations: • No client-side tap time manipulation • APK tampering protection • Rooted/emulated device detection • TLS fingerprinting and session replay protection • Basic bot detection logic Deliverables: • Android APK (production-ready) • Backend server (Node.js / Python / Go preferred) • Admin panel (React / Angular / Vue) • Database setup (MongoDB / PostgreSQL) • API documentation • Deployment guide (Firebase / AWS / VPS) Who Should Apply: • Full-stack developer with experience in real-time games or skill-based apps • Strong backend security knowledge (anti-cheat, bot protection) • Experience with wallet systems and UPI integration • Able to deliver clean, modular, scalable code • Bonus: Experience with Indian gaming apps or fintech Timeline: • MVP delivery: 3–4 weeks • Full system with admin panel: 6–8 weeks How We’ll Work: • You build the system end-to-end • I will handle backend configuration, game logic tuning, and business operations • Clear milestones, weekly check-ins, and code reviews