I will build your ai voice agent with vapi, retell ai or livekit


Level 2
About this gig
Inbound calls get missed. Voicemails don't get returned. Receptionists are expensive and only work business hours. Leads slip through.
An AI voice agent answers every call, 24/7 and in many languages: it handles FAQs, qualifies leads, books appointments and transfers real opportunities to a human.
I design and build AI voice agents and connect them to your existing systems. I work across the whole stack and pick the right tool for your situation:
- Vapi: fast setup, great for most business use cases
- Retell AI: strong reliability for high call volumes
- LiveKit Agents: full control, custom logic or self-hosting
- ElevenLabs Conversational AI: when voice quality is the priority
- CRM, calendar or ticketing integration, set up securely
For the backend I use what makes sense: platform-native function calls when it's simple, n8n or Make for visual workflows, or custom code (TypeScript / Python) when you need full flexibility.
10+ years in full-stack development. I run a small agency focused on AI automation for SMBs in Europe, with GDPR in mind.
Get to know Simon
Software Developer and AI Automation, React Native, NextJS
Level 2
- FromAustria
- Member sinceMar 2013
- Avg. response time1 hour
- Last delivery5 months
Languages
English, German
My Portfolio
FAQ
What does it cost to run after you build it?
Typically $30–$150/month for low-to-mid call volume. Breakdown: telephony (Twilio / Telnyx) + voice agent platform fee + LLM tokens + voice provider. I'll give you a concrete estimate based on your expected volume during discovery.
Do you sign NDAs?
Yes, happy to sign an NDA before you share anything sensitive.
