ZOHO CRM RCS Messaging Integration

I need my ZOHO CRM instance to trigger rich, native messages the moment a contact enters or moves through specific stages of our pipeline. The goal is full-fledged automated messaging—welcome, follow-up,... (Budget: $750 - $1500 USD, Jobs: API Integration, Automation, CRM, PHP, Salesforce.com, Software Architecture, Twilio, Zoho)