Browse categories
Explore
Fiverr Pro
English
$
USD
I will build ai voice agent livekit vapi retell API workflows orchestration integration
Roberto Hart
About this gig
Building an Engineered AI product is more than connecting a model to a phone number. Poor conversation design, unreliable call handling, disconnected APIs, and limited scalability can lead to missed opportunities, inconsistent customer experiences, and slower business growth. I engineer production-ready AI telephony agent systems that combine conversational AI, workflow orchestration, CRM integration, and enterprise automation. Whether you need an AI receptionist, AI phone agent, AI SDR, customer support automation, or intelligent workflows, I'll build a secure, scalable solution tailored to your product, infrastructure, and business objectives.
What I can build:
- AI Phone Agents & Conversational AI
- AI Receptionists & AI Phone Agents
- AI SDR & Outbound Calling Systems
- Voice Agent APIs & Workflow Engineering
- Vapi & Retell Workflow Automation
- Live Call Monitoring & Analytics
- CRM Integration & API Automation
- Twilio, Telnyx & SIP Connectivity
- n8n Vocal workflow Automation
- Deepgram speechmatic Intelligence
- LiveKit & Vocode sound Infrastructure
- Custom Dashboards & Enterprise Deployment
Personally reviewed, fully tested, and documented. Message me for the best AI architecture.
Get to know Roberto Hart
Roberto Hart
AI Automation Systems, AI Agents, Voice AI, n8n , API Integration
- FromUnited Kingdom
- Member sinceJul 2026
- Avg. response time1 hour
Languages
English, Spanish, French, German, Italian, Romanian, Greek, Latvian
I engineer AI automation systems that help businesses automate operations, customer engagement, sales, and support using AI agents, n8n, Voice AI, APIs, CRM integrations, and intelligent workflows. I build scalable solutions including AI voice agents, AI receptionists, AI SDR systems, WhatsApp AI, private AI, RAG, workflow automation, API integration, self-hosted deployments, and business process automation. Every solution is production-ready, secure, well-documented, thoroughly tested, and designed for long-term reliability, scalability, and measurable business impact.
FAQ
What types of Voice AI systems can you build?
I build AI receptionists, AI phone agents, conversational AI platforms, AI SDR systems, outbound calling solutions, customer support agents, appointment booking systems, voice workflow automation, and production-ready Voice AI APIs for startups, SaaS companies, agencies, and enterprise teams.
Which Voice AI platforms do you support?
I work with Vapi, Retell AI, Bland AI, Synthflow, ElevenLabs, Deepgram, LiveKit, Vocode, Twilio, Telnyx, SIP providers, OpenAI, Claude, Gemini, and custom Voice Agent APIs. If your preferred platform isn't listed, send me the details and I'll review your requirements.
Can you build custom Voice AI workflows instead of basic call flows?
Yes. I engineer advanced workflows including Vapi Workflows, Retell Workflows, custom conversation logic, branching paths, API calls, CRM synchronization, live call monitoring, human handoff, custom voice handling, and workflow orchestration for production environments.
Can my Voice AI connect with existing business systems?
Yes. I integrate Voice AI solutions with CRMs, internal APIs, databases, scheduling platforms, web applications, payment systems, n8n workflows, Slack, Google Sheets, HubSpot, Salesforce, GoHighLevel, and many other third-party services.
Can you optimize an existing Voice AI project?
Absolutely. I can troubleshoot call quality, improve prompts, redesign conversation flows, optimize latency, resolve API issues, implement monitoring, improve workflow reliability, and enhance the overall customer experience without rebuilding everything from scratch.
Do you provide deployment and documentation?
Yes. Every project includes deployment assistance, testing, documentation, and a Loom walkthrough explaining the architecture, workflows, configuration, and ongoing management of your Voice AI solution.
What do you need before starting?
Please share your project goals, preferred Voice AI platform, existing infrastructure, telephony provider, CRM or APIs you want connected, expected call volume, and any conversation flows or documentation you already have. If you're unsure, I'll recommend the most suitable architecture before builds
