
Muhammad J
I Build AI Voice Agents with Retell for Business Automation
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Portfolio
Werkervaring
Conversational AI Developer
Upwork • ZZP
Jun 2024 - Present • 1 yr 11 mos
Working with global clients to build AI voice agents on Retell AI. Delivered 24/7 AI receptionist for a US dental practice automated appointment booking, reduced missed calls to zero. Specializing in inbound AI receptionists and outbound cold calling agents integrated with GoHighLevel and HubSpot CRM.
AI Voice Agent Developer
Freelancing Career • ZZP
Feb 2023 - Nov 2025 • 2 yrs 9 mos
Started freelance journey building conversational AI systems. Developed expertise in Retell AI, Twilio telephony, and ElevenLabs voice synthesis. Built appointment booking bots and lead qualification agents for multiple industries. Foundation period for mastering AI automation workflows with Make.com and Zapier.