Full-Stack Developer for AI SMS Booking Platform

We need an experienced developer or small team to build a web-based MVP for mass SMS outreach, AI conversations, appointment booking, and agent distribution. This is a focused platform, not a full CRM. Key features include lead list import with validation and suppression, campaign creation, SMS delivery tracking, AI-managed conversations, calendar integration, appointment booking, and role-based dashboards. Experience with SaaS, SMS webhooks, OpenAI/LLMs, calendar APIs, PostgreSQL, A2P 10DLC, and opt-out compliance is strongly preferred. The system must be modular, documented, scalable, and delivered with full source-code ownership. To apply, start with “SMS Booking Platform” and include similar work, recommended stack, timeline, milestone plan, and fixed-price estimate.