Development of a Comprehensive Scratch-Card Lottery Management System

We are seeking experienced development teams or freelancers to build a complete Scratch-Card Lottery Management System for a new lottery operation launching in Liberia. The system must be robust, scalable, and secure, capable of managing over 1,000,000 scratch cards and supporting more than 400 active agents simultaneously.Key components and functionalities required include:Backend API: Secure activation and prize validation. Comprehensive scratch card and game management. Robust reporting capabilities.Databases: Main operational database. Dedicated hidden-code security database. Detailed logging for all transactions and activities.Web Portals: Admin Web Portal for overall system configuration, user management, and oversight. Supervisor Web Portal for managing agent activities, inventory, and localized reporting.Android Agent Application: Functionality to scan QR codes on scratch cards. Process card sales. Validate prizes securely. Support for offline mode to ensure continuous operation in varying network conditions.Core System Features: Advanced prize engine with automated win/lose logic. Full anti-fraud and audit trail system to ensure integrity and prevent illicit activities. Comprehensive inventory tracking for scratch cards. Detailed reporting dashboards for operational insights.Deliverables: Complete source code. Detailed technical documentation. Deployment assistance. 3-6 months of post-launch technical support.Preferred Technologies: Backend: Node.js, Laravel, Java, or .NET. Database: PostgreSQL. Cloud Hosting: AWS, DigitalOcean, or Azure.We are looking for vendors who can commence work immediately to meet our launch timeline in Liberia.