Browse categories
Explore
Fiverr Pro
English
$
USD
Lucas Walker
@lucascoalwalker
AI Voice Agents That Turn Calls Into Qualified Leads
United States
English, German, Italian
About me
I build intelligent AI voice agents that answer calls, qualify leads, book appointments, follow up with prospects, and automate customer conversations 24/7. I specialize in Vapi AI, Retell AI, Twilio, ElevenLabs, n8n, Make, GoHighLevel, CRM and API integrations. Whether you need an AI receptionist, inbound/outbound calling agent, appointment setter, or custom voice automation, I build reliable systems around your business workflow.
Skills
Lucas Walker
Offline •
See my services
Automations & Agents
I will build ai voice agent retell ai vapi ai receptionist ai calling agent
Automations & Agents
I will build retell ai voice agent make n8n vapi ai zapier automation elevenlabs
Work experience
AI Voice Agent Developer & Automation Specialist
Upwork • Freelance
Aug 2026 - Present • 2 mos
- Design and develop AI voice agents for inbound and outbound calls. - Build AI receptionists for answering customer calls 24/7. - Create lead qualification and appointment-booking workflows. - Develop Vapi AI and Retell AI voice systems. - Integrate Twilio, ElevenLabs, OpenAI, n8n, Make and webhooks. - Connect voice agents with GoHighLevel, HubSpot, Google Calendar and other CRMs. - Build call routing, human handoff, follow-up and notification workflows. - Optimize prompts and conversation flows for natural customer interactions.
.png){kind=logo}
Fiverr
Freelance • 7 mos
AI Automation & Voice Systems Specialist
Jul 2026 - Present • 3 mos
- Built business automation systems connecting AI agents with CRM and communication platforms. - Created automated lead capture, qualification and follow-up workflows. - Developed appointment scheduling systems using calendars and CRM integrations. - Connected APIs and webhooks to automate business processes. - Built n8n, Make and Zapier workflows around AI voice systems. - Implemented automated call summaries, transcripts, lead tagging and notifications.
Conversational AI & CRM Automation Developer
Jun 2026 - Present • 4 mos
- Designed conversational AI workflows for sales and customer support. - Built AI receptionist and AI appointment-setter systems. - Integrated voice AI with CRM and business applications. - Created inbound and outbound call workflows. - Developed custom prompts, tools, functions and API integrations. - Tested voice agents for call handling, qualification, objection handling and human transfer.
