AI Automation & AI Sales Agent Developer

We already have a working AI agent we need an expert to take it from "functional" to "best-in-class." We've built the foundation of an AI-powered sales & automation agent and it's already running. We're now looking for an experienced AI Automation / AI Agent Developer to enhance, optimize, debug, and level up the existing system — not to build from scratch. The core is in place; you'll refine it into a polished, reliable, production-grade agent. What's already built (the base):A functioning AI sales agent / conversational workflow that handles lead interactions and automated responses. The architecture and core logic exist we want you to make it faster, smarter, and more robust. What we need you to do (the enhancement work): Review the current AI agent setup and identify gaps, bugs, and bottlenecks Improve conversation flow, prompt engineering, and LLM response quality (GPT / Claude / GPT-4o) Optimize and fix existing automation workflows (n8n / Make.com / Zapier) Strengthen integrations: CRM (GoHighLevel / HubSpot), Airtable, Google Sheets, webhooks & APIs Enhance lead qualification, follow-up, and appointment-setting logic Improve error handling, reliability, and monitoring so the agent runs 24/7 Add or refine AI voice agent capability (VAPI / Retell AI / Twilio / ElevenLabs) Ideal candidate skills:AI agent development, agentic AI, AI automation, workflow automation, n8n, Make.com, Zapier, LLM integration, OpenAI / Claude, prompt engineering, RAG, AI chatbot development, AI voice agent, VAPI, Retell AI, conversational AI, CRM automation, GoHighLevel (GHL), automation, API integration, Python, Node.js, lead generation & sales automation. Please share 2–3 examples of AI agents or automations you've improved or built, and a one-line note on how you'd approach optimizing an existing agent............................