Develop Custom WhatsApp Automation Script / Tool for Contact Messaging -- 2

Looking for an experienced developer to create a custom WhatsApp automation script or tool. Ability to send broadcast or automated reminder messages to a list of contacts/groups efficiently. Clean and user-friendly setup (Python, Node.js, or WhatsApp Business API integration)... (Budget: ₹600 - ₹1500 INR, Jobs: ASP, PHP, Social Networking, Test Automation, Web Scraping, Web Search, Web Security, Website Testing, Windows Desktop)