AI Automation SaaS Platform Development (LLMs, AI Agents & Workflow Automation)

We are looking for an experienced development team to build a scalable AI Automation SaaS platform that helps businesses automate workflows using AI agents and LLMs. Key Requirements:-- AI-powered workflow automation AI agents and chatbot interface Third-party API integrations (OpenAI, Slack, Gmail, WhatsApp, etc.) User authentication, subscriptions, and multi-tenant architecture Admin dashboard and analytics Cloud-native, secure, and scalable architecture Preferred Stack: React/Next.js, Node.js or Python, PostgreSQL/MongoDB, AWS, Docker, and vector databases. Please share: Similar AI SaaS projects you've built Recommended tech stack and architecture Estimated timeline and cost We're looking for a long-term development partner with proven experience in AI-powered SaaS solutions.