Hire the Best Retell AI Developers

𝐑𝐞𝐜𝐞𝐧𝐭𝐥𝐲 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐞𝐝 𝐀𝐈 𝐯𝐨𝐢𝐜𝐞 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 𝐭𝐡𝐚𝐭 𝐭𝐫𝐚𝐧𝐬𝐟𝐨𝐫𝐦𝐞𝐝 𝐦𝐚𝐧𝐮𝐚𝐥 𝐜𝐚𝐥𝐥 𝐡𝐚𝐧𝐝𝐥𝐢𝐧𝐠 𝐢𝐧𝐭𝐨 𝐢𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐭 𝐜𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐜𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐜𝐚𝐩𝐚𝐛𝐥𝐞 𝐨𝐟 𝐚𝐧𝐬𝐰𝐞𝐫𝐢𝐧𝐠 𝐜𝐚𝐥𝐥𝐬, 𝐪𝐮𝐚𝐥𝐢𝐟𝐲𝐢𝐧𝐠 𝐥𝐞𝐚𝐝𝐬, 𝐛𝐨𝐨𝐤𝐢𝐧𝐠 𝐚𝐩𝐩𝐨𝐢𝐧𝐭𝐦𝐞𝐧𝐭𝐬, 𝐚𝐧𝐝 𝐮𝐩𝐝𝐚𝐭𝐢𝐧𝐠 𝐂𝐑𝐌 𝐫𝐞𝐜𝐨𝐫𝐝𝐬 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐜𝐚𝐥𝐥𝐲. Whether you need an AI receptionist, an AI sales agent, a customer support voice assistant, or a complete AI phone system, you'll get a solution designed around your business instead of a generic implementation. Recent projects include AI voice agents for: • AI Receptionists • Appointment Scheduling • Lead Qualification • Customer Support • Outbound AI Calling • CRM Automation Using technologies including: • Retell AI • Vapi • Twilio • GoHighLevel • n8n • Make • OpenAI • Python • Custom API Integrations Every solution is designed to handle real business conversations and can: • Answer inbound calls naturally • Qualify leads automatically • Book appointments • Update your CRM • Trigger follow up workflows • Transfer calls to a live agent when needed • Support inbound and outbound conversations • Deliver fast, low latency responses My approach starts with understanding how your business operates before writing prompts or connecting workflows. That ensures your AI voice agent feels like part of your team instead of just another automation tool. From conversation design and prompt engineering to API integrations, CRM connectivity, workflow automation, testing, deployment, and ongoing optimization, every system is built with reliability, scalability, and long term performance in mind. If you're looking for an AI voice agent that fits seamlessly into your business and delivers a great customer experience, I'd love to discuss your project. Retell AI Developer, Retell AI Expert, Retell AI Voice Agent, Retell AI Integration, Retell AI Automation, Retell AI Receptionist, Retell AI Specialist, Retell AI Setup, Retell AI Consultant, Retell AI Engineer, Retell AI API, Retell AI Voice Bot, Retell AI Inbound, Retell AI Outbound, Retell AI Calling, Retell AI Configuration, Retell AI Deployment, Retell AI Solutions, Retell AI Architecture, Retell AI Flow Design, Retell AI Twilio Integration, Retell AI CRM Automation, Retell AI Appointment Booking, Retell AI Lead Qualification, Retell AI Call Handling, Retell AI Prompt Engineering, Retell AI Custom Agent, Retell AI LLM Integration, Retell AI Webhook Setup, Retell AI Live Agent Routing, Vapi AI Developer, Vapi Expert, Vapi AI Voice Agent, Vapi Integration, Vapi Automation, Vapi AI Receptionist, Vapi Specialist, Vapi Setup, Vapi Consultant, Vapi Engineer, Vapi API Integration, Vapi Voice Bot, Vapi Inbound Calling, Vapi Outbound Calling, Vapi Voice Automation, Vapi Configuration, Vapi Deployment, Vapi Solutions, Vapi Architecture, Vapi Call Logic, Vapi Twilio Setup, Vapi CRM Integration, Vapi Appointment Setting, Vapi Lead Qualification, Vapi Call Handling, Vapi Prompt Engineering, Vapi Custom Voice Agent, Vapi LLM Setup, Vapi Webhooks, Vapi Assistant Development, AI Voice Agent Developer, AI Voice Agent Expert, AI Voice Agent Integration, AI Voice Agent Automation, AI Voice Agent Specialist, AI Voice Agent Setup, AI Voice Agent Consultant, AI Voice Agent Engineer, AI Voice Agent API, AI Voice Agent Deployment, AI Voice Agent Solutions, AI Voice Agent Architecture, Custom AI Voice Agent, Conversational AI Voice Agent, Inbound AI Voice Agent, Outbound AI Voice Agent, AI Voice Agent for Business, AI Voice Agent Booking System, AI Voice Agent Lead Qualification, Real Estate AI Voice Agent, Healthcare AI Voice Agent, AI Voice Agent CRM Sync, Advanced AI Voice Agent, Multi-language AI Voice Agent, Sales AI Voice Agent, Support AI Voice Agent, AI Voice Agent Pipeline, Phone AI Voice Agent, Twilio AI Voice Agent, Intelligent AI Voice Agent, AI Voice Receptionist Developer, AI Voice Receptionist Expert, AI Voice Receptionist Integration, AI Voice Receptionist Automation, AI Voice Receptionist Specialist, AI Voice Receptionist Setup, AI Voice Receptionist Consultant, AI Voice Receptionist Engineer, AI Voice Receptionist Solutions, 24/7 AI Voice Receptionist, Virtual AI Voice Receptionist, Inbound AI Voice Receptionist, Custom AI Voice Receptionist, Smart AI Voice Receptionist, AI Voice Receptionist for Booking, AI Voice Receptionist for Real Estate, AI Voice Receptionist for Medical Clinics, AI Voice Receptionist CRM Integration, Front Desk AI Voice Receptionist, Automated AI Voice Receptionist, AI Voice Receptionist Setup Service, AI Voice Receptionist Architecture, Intelligent AI Voice Receptionist, AI Voice Receptionist Twilio Connection, Business AI Voice Receptionist, Automated Phone AI Voice Receptionist, AI Voice Receptionist Customer Support, Conversational AI Voice Receptionist

Every business I've worked with that needed an AI Voice Agent had the same problem not a marketing problem, not a sales problem. A response problem. Calls going unanswered. Follow ups happening too late. I build AI Voice Agents that answer calls, qualify leads, and book appointments automatically. I am an AI Voice Agent Developer specializing in Retell AI, Vapi, Twilio, GoHighLevel, n8n, and Make com. I design and deploy production-ready AI phone agents that answer calls 24/7, qualify leads through natural conversation, book appointments directly into your calendar, and trigger the right follow-up sequence the moment a call ends without any manual involvement from your team. I have built AI receptionists that went live handling real patient calls for medical clinics within days of kickoff. I have deployed outbound AI calling systems that dialled through hundreds of aged leads and reactivated deals the client had completely written off. I have engineered post-call automation workflows that eliminated manual CRM entry for sales teams handling over 300 calls per week. These are not demos. These are systems running inside real businesses right now. 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝 AI Voice Agents & Call Automation I build inbound AI receptionists and outbound AI calling systems using Retell AI, Vapi, and Twilio that handle real conversations, not scripted menus. The agent qualifies leads, books appointments, routes calls to the right person, and logs everything automatically. Systems include AI phone agents for inbound and outbound calls, AI receptionists for healthcare, real estate, legal, and home service businesses, AI lead qualification agents, appointment scheduling automation, IVR systems using Twilio Studio and TwiML, and post-call automation covering summaries, CRM updates, contact tagging, and follow up triggers. GoHighLevel CRM Automation I build complete GoHighLevel systems that capture, nurture, and convert leads without manual input. This covers pipeline setup and stage automation, missed call text back, multi step lead nurturing sequences, Twilio SMS workflows, appointment reminders, AI-powered lead qualification pipelines, and webhook integrations connecting GHL to your other tools. Your CRM should be a live, accurate picture of every lead not a storage dump nobody updates. Workflow Automation & System Integration Using n8n and Make com I build multi-step automation workflows that connect your tools and eliminate the manual work between them. Lead comes in, gets scored, CRM is updated, task is assigned, follow up is triggered all without a human touching anything. I have built 60+ node n8n workflows handling full lead-to-onboarding pipelines and Make com blueprints running automated client reporting across GA4, Google Ads, and Meta Ads delivered every Monday morning without anyone pressing a button. 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈 𝐒𝐞𝐫𝐯𝐞 Real estate investors and agencies, medical and dental clinics, home service and trades businesses, law firms, SaaS companies, e-commerce brands, and sales teams that depend on phone communication and fast lead response to drive revenue. 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 𝐈 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 Retell AI, Vapi, Twilio, GoHighLevel, n8n, Make com, OpenAI GPT-4o, ElevenLabs, LiveKit, Supabase, Node.js, React, Webhooks and APIs, Google Calendar, HubSpot, Salesforce, Zoho CRM. 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞 I do not build fragile demo bots. Every system I deliver is tested against real call scenarios, real edge cases, and real business logic before it goes live. I map the full conversation flow before writing a single line of prompt. I build the post call automation before the client even thinks to ask. And I stay involved through deployment and testing until the system is performing reliably not just technically functional. 94% Job Success Score. Top Rated on Upwork. 64 completed projects. $10K+ delivered across healthcare, real estate, home services, and SaaS clients. 𝐈𝐟 𝐲𝐨𝐮 𝐧𝐞𝐞𝐝 𝐚𝐧 𝐀𝐈 𝐯𝐨𝐢𝐜𝐞 𝐚𝐠𝐞𝐧𝐭 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, 𝐑𝐞𝐭𝐞𝐥𝐥 𝐀𝐈 𝐬𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭, 𝐕𝐚𝐩𝐢 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫, 𝐓𝐰𝐢𝐥𝐢𝐨 𝐯𝐨𝐢𝐜𝐞 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐞𝐱𝐩𝐞𝐫𝐭, 𝐆𝐨𝐇𝐢𝐠𝐡𝐋𝐞𝐯𝐞𝐥 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐬𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭, 𝐨𝐫 𝐀𝐈 𝐫𝐞𝐜𝐞𝐩𝐭𝐢𝐨𝐧𝐢𝐬𝐭 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐈 𝐜𝐚𝐧 𝐛𝐮𝐢𝐥𝐝 𝐢𝐭. Send me a message with: Your business type and industry How calls and leads are currently being handled Your current tools or CRM What you want automated or built I will review your setup and tell you exactly what system makes sense for your situation whether that is an AI receptionist, an outbound calling agent, a GoHighLevel automation build, or a full endto end voice and CRM system. Let's build something that actually works inside your business.

🌟🌟🌟🌟🌟 “Hasan didn’t just build a voice bot for us, he actually took time to understand our call flow and customers. The final system sounded natural, handled real conversations well, and reduced our team’s workload significantly.” Hey, I’m Hasan. I help businesses use Voice AI and call automation to handle calls, qualify leads, and book appointments automatically. I specialize in building natural-sounding voice bots and AI call agents that can talk to customers, ask the right questions, route calls, and trigger actions in your systems. Whether it’s inbound calls, outbound follow-ups, or missed call handling, I design voice workflows that work like a reliable virtual team member. Why people work with me: I’ve built and deployed production-ready voice AI agents for sales, support, and appointment booking I’ve worked with businesses in real estate, healthcare, recruitment, SaaS, and service-based industries I’ve helped teams reduce missed calls and manual call handling, saving hours of staff time every week I’ve implemented voice AI systems that increased lead capture and appointment rates How I work: First, I understand your current call flow, scripts, and where calls are being dropped or wasted. Then I build a working voice bot quickly so you can hear real conversations and give feedback. After that, I focus on reliability, call handling edge cases, logging, and easy maintenance. As your call volume grows, I keep optimizing the voice AI to improve accuracy and conversion. If your team is overwhelmed with calls or losing leads after hours, we should talk. Let’s start with a free strategy call. I’ll map out one voice AI automation that can realistically pay for itself within the next 30 days.

I 𝗖𝗢𝗡𝗦𝗨𝗟𝗧 first, then 𝗔𝗨𝗧𝗢𝗠𝗔𝗧𝗘. If you already know 𝒆𝒙𝒂𝒄𝒕𝒍𝒚 what needs to be automated and how, we can jump straight into execution. But in most cases, that’s not where the real value lies. I prefer starting with a call, proper discussion - understanding your current (manual) workflows, identifying gaps, and mapping out a clear, phased roadmap. Only then do we move into execution. Because here’s the truth: Most developers skip this step… and end up causing delays, rework, and unnecessary complexity. I 𝒅𝒐𝒏’𝒕. _____________ Are your leads slipping through the cracks? Spending hours on tasks that should run themselves? I help businesses like yours automate operations using powerful no-code AI tools, such as n8n, Make com, Zapier, and GoHighLevel (GHL), combined with cutting-edge AI like GPT-4, ElevenLabs, Vapi, Retell AI and ManyChat. The result? Smart systems that generate leads, follow up, and close more deals while you sleep, and customer service that runs on autopilot, 24/7! DevOps Since 2021, I’ve built high-converting AI automations and AI integrations for real estate agencies, healthcare providers, travel companies, recruiters, and online service businesses. I’ve deployed: ✅ End-to-end CRM workflows with GoHighLevel AI ✅ AI chatbots and WhatsApp agents powered by GPT & n8n ✅ AI Lead capture and outreach pipelines with n8n + Make ✅ Voice-enabled assistants using Retell AI, Vapi, and ElevenLabs ✅ AI Auto-reply and support bots integrated with websites and Facebook ✅ WhatsApp follow-up and qualification AI bots DevOps ✅ Lead-to-appointment automations synced with calendars and CRMs 𝐍𝐨𝐭𝐚𝐛𝐥𝐞 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬: - evolveworkforcesolutions com – AI scheduling and follow-up for recruiting - klikdigital nl – Dutch AI Voice Receptionist for lead follow-up and nurturing - oxygenbar360 com – real-time WhatsApp chatbot for every booking Healthcare practice – multilingual AI voice agent for triage & appointment setting Whether you need a one-time workflow, a scalable AI system, or ongoing automation support, I’m here to deliver results fast, clean, and fully documented. 🛠 Available for: Workflow Automation (n8n, Make, Zapier, GHL) AI Agents & GPT-4 Integrations Voice Bots (Vapi, ElevenLabs, Retell) WhatsApp, SMS & Web Chatbots CRM Setup & Automation (GHL, HubSpot, Pipedrive) Let’s build a system that works while you don’t have to.

HIPAA-aware AI voice agents for healthcare — built on Synthflow, Retell AI and ElevenLabs. I turn missed calls into booked appointments with 24/7 reception, appointment booking and CRM automation that capture every inquiry and route it into your real systems. I specialize in production voice agents (Synthflow, Retell AI, Voiceflow, ElevenLabs) wired into your real systems — GoHighLevel, HubSpot, EHR / booking tools, Twilio telephony, plus AI chat & WhatsApp assistants (ManyChat, WATI) — with OpenAI / GPT-4o driving the conversation and n8n / Make orchestrating the workflow end to end. Healthcare is where I'm strongest. Recent work includes: Patient growth & booking across a 55-clinic chiropractic network (Australia) 24/7 AI shift-coordination for UK NHS healthcare staffing Bilingual (EN / ES) after-hours patient reception (Miami) Inbound AI receptionists for dental & medical clinics AI voice agent for medical consults (Synthflow + PracticeQ / EHR) I design with compliance in mind: HIPAA-aware architecture, PHI minimization, audit logging, and clear medical-escalation rules — the AI never diagnoses or gives medical advice; it routes to your staff. Beyond healthcare, I deliver the same voice + integration stack for clinics, agencies, startups, and appointment-driven service businesses. What I deliver: AI voice & chat agents: inbound / outbound calls (Twilio, VoIP), WhatsApp & web chat, FAQ, triage, appointment booking Lead qualification, enrichment & conversion bots Knowledge-base & RAG assistants (document / data retrieval, multi-agent) AI automation for business operations (n8n, Make, Zapier) + API / webhook integration CRM & calendar integration (GoHighLevel, HubSpot, Google Calendar) QA & testing for conversation flows and backend logic Backed by 8+ years in project management and backend development (JavaScript, Node.js, Express, serverless, Supabase), I own the full delivery cycle — architecture, conversation design, QA, deployment. Let's build a voice agent that fits your business. Message me to start)

AI Voice Agent Developer building low latency AI Receptionists, Voice AI Agents, Vapi voice agents, Retell AI agents, Conversational AI systems, and AI phone agents using Telnyx, Lindy AI, Synthflow, GoHighLevel and Bland AI. Voice agents that turn Calls into Qualified Leads and Leads into Booked Appointments. → I build production-ready systems that capture inbound calls, qualify leads, book appointments, and handle customer support 24/7. Each system connects directly to your workflows using Make, n8n, Zapier, GoHighLevel and custom CRM dashboards. Teams report 30 to 35% more qualified leads after deployment. --------------- MY TECH STACK ✅ AI Voice Platforms: Vapi, Retell AI, Synthflow, Bland AI, Telnyx 🔸→ Voice agents handle inbound and outbound calls with natural conversation flow 🔸→ Speech processing runs through ElevenLabs, Cartesia and Deepgram for voice input and output 🔸→ Telephony routes calls through Twilio and Telnyx for SIP, call routing and phone systems 🔸→ Voice interaction design covers response timing, clarity and conversation quality ✅ AI Models & Engineering: OpenAI, Anthropic, Gemini, Groq, LangChain 🔸→ Language models process user input and generate accurate, context-aware responses 🔸→ RAG pipelines with vector databases handle context retrieval and memory 🔸→ NLP covers intent detection, sentiment tracking and structured response handling 🔸→ Python powers backend logic, API connections and system control ✅ Workflow Automation: n8n, Make, Zapier, Pabbly 🔸→ Automation flows connect AI voice systems directly to business operations 🔸→ Webhooks and APIs manage data transfer between tools and services 🔸→ Follow-up systems capture leads and trigger response sequences automatically 🔸→ Data sync covers Google Sheets, Airtable, Notion and internal dashboards ✅ CRM & Business Integrations: GoHighLevel, HubSpot, Zoho, Salesforce, Pipedrive 🔸→ CRM systems track leads, conversations and customer activity across the pipeline 🔸→ Scheduling systems manage bookings, reminders and appointment flows 🔸→ Payment integrations connect Stripe 🔸→ Additional integrations include RingCentral, Shopify and communication platforms --------------- WHAT I'D DELIVER ✅ AI Voice Agents & Communication Systems 🔹→ AI voice agents for inbound and outbound calls, lead qualification, appointment booking and 24/7 customer support 🔹→ Sales automation systems that recover missed calls and increase qualified leads by 30 to 35% ✅ AI Automation & Integrations 🔹→ Automation systems connecting Vapi, Telnyx, Retell AI, Bland AI and Synthflow with CRMs using APIs, webhooks and workflows 🔹→ End-to-end automations for lead tracking, follow-ups and performance monitoring ✅ AI Engineering & Development 🔹→ AI agents and automations built with Python, JSON and modern API frameworks 🔹→ RAG-based systems and context-aware integrations for smarter, more accurate voice responses ✅ Full-Stack AI Systems & Custom Dashboards 🔹→ Full-stack AI business systems covering backend logic, automation flows and data handling 🔹→ Custom dashboards, internal tools and lightweight MVPs built for speed and real-world deployment. --------------- WHY CLIENTS WORK WITH ME 🔸→ Delivers on deadlines without follow-up reminders or status chasing 🔸→ Builds every system to production-ready standards, not just demo quality 🔸→ Works across global time zones with clear communication at every stage 🔸→ Stays current with Vapi, Retell AI, and the broader Voice AI ecosystem as it moves fast --------------- 📩 Send a MESSAGE/INVITE to review your current setup, identify gaps in lead handling, and deploy an AI voice agent system that increases response speed, call conversions, and revenue. --------------- RELEVANT SKILLS & KEYWORDS AI Voice Agent, AI Voice Agent Developer, Vapi Expert, Vapi AI Agent, Vapi Voice Automation, Retell AI Expert, Retell AI Receptionist, Retell AI Developer, Telnyx AI Developer, Telnyx Voice Automation, Synthflow AI Agent, Bland AI Developer, ElevenLabs Voice Integration, Conversational AI Developer, AI Phone Agent, Inbound AI Agent, Outbound AI Agent, AI Receptionist, AI Call Automation, Voice AI Automation, Low Latency Voice AI, AI Lead Qualification, AI Appointment Booking, AI Customer Support, 24/7 Voice Automation, AI Sales Automation, CRM Voice Integration, GoHighLevel Voice AI, GoHighLevel Automations, GoHighLevel Inbound Webhook, Retell to GoHighLevel, Retell to Google Calendar, Make and Cal com Integration, Vapi to GoHighLevel, HubSpot Voice Automation, n8n AI Automation, Make Automation, Zapier AI Integration, Webhook Integration, API Integration, Python AI Developer, Machine Learning Integration, RAG System, RAG Pipeline, Natural Language Processing, NLP Automation, AI Workflow Automation, Business Automation, Lead Capture Automation, AI Follow-Up System, Vapi, Retell AI, Telnyx, Synthflow, Bland AI, ElevenLabs, Deepgram, Cartesia, Groq, OpenAI, Anthropic, Gemini, LangChain, n8n, Make