Alex

AI Voice Solutions Specialist

Synthwave Digital • Freiberufler

Jan 2026 - Present • 4 mos

- Deployed VAPI-powered phone agents for 5+ clients across healthcare, real estate, and professional services, handling thousands of inbound calls monthly without human intervention - Engineered DST-safe timezone handling and Google Calendar integration within VAPI tool call workflows, enabling accurate real-time appointment booking across multiple geographic regions - Leveraged ElevenLabs voice design features to create distinct AI personas for each client, including custom stability, similarity boost, and style settings tuned per use case - Implemented VAPI server messages and end-of-call reports to feed structured call data into client dashboards and reporting pipelines

Voice AI Engineer

NovaSonic AI • Freiberufler

Oct 2025 - Present • 7 mos

- Architected and deployed production-grade VAPI voice agents for inbound and outbound call handling, integrating custom server-side tools for real-time data lookup and calendar management - Built multilingual voice assistants using ElevenLabs Eleven Multilingual v2 voices, achieving human-like speech quality across English, Greek, Spanish, and French for international clients - Configured VAPI assistant pipelines with Deepgram transcription, custom tool call webhooks, and fallback escalation logic to human agents via SIP forwarding - Reduced average call handling time by 65% for a healthcare client by replacing manual receptionist workflows with a fully automated VAPI booking system

VAPI Inbound Receptionist

HelixCare Medical Group • Teilzeit

Jan 2026 - Jan 2026 • 0 mos

eployed a 24/7 VAPI voice agent with ElevenLabs Multilingual v2 voice handling appointment booking and cancellations across 3 clinic locations. Integrated with Google Calendar and a patient database via n8n webhooks.