Contact person: Business Client

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Location: Allahabad, India

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"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" (client-provided description)