AI & Automation
Hire Voice AI Developers
Voice AI developers build systems that listen and speak: phone agents, voice assistants, call transcription and natural text-to-speech.
The role
What voice AI developers do
A voice AI developer combines speech recognition, a language model and speech synthesis, connects them to phone systems or apps, and works on latency, interruptions and accuracy with accents and background noise. Compliance around recording calls is part of the work.
Typical deliverables
- AI phone agents for defined tasks
- Call transcription and summaries
- Voice interfaces in apps
- Custom text-to-speech voices
- Call analytics and quality reports
Tools you will see
- Twilio
- Deepgram or Whisper
- ElevenLabs
- OpenAI Realtime API
- Vapi or Retell
Choosing
How to choose voice AI developers
What to look for
- Demos you can call or talk to.
- Low response delay and natural handling of interruptions.
- Testing with real accents and noisy audio.
- Awareness of call recording consent rules.
Questions to ask
- 1How fast does the agent respond in live calls?
- 2What happens when callers interrupt or go off topic?
- 3How do you hand calls over to a person?
- 4What consent and disclosure rules apply to our calls?
Planning
Before you post the job
Legal requirements
Recording and AI calling rules vary by country. Confirm consent and disclosure requirements before launch.
What drives cost
Call volume, integrations, languages, voice customisation and per-minute provider fees.
Hiring on Open Lance
- Posting a job and reviewing proposals are free.
- Each milestone is funded into escrow before work starts and paid when you approve it.
- Hire fixed-price, hourly, as a monthly Dedicated Hire, or buy a packaged Drop-In.
- Client fees are shown before you pay and added on top of the work.
FAQ
Questions about hiring voice AI developers
Can an AI agent handle phone calls?
For focused tasks like booking or FAQs, yes, with handoff to people for anything complex.
Can we clone a voice?
Technically yes, but only with clear permission from the person whose voice is used.
Does it work in other languages?
Many providers support multiple languages, with quality varying by language and accent.
Related
Related skills
Post a job for voice AI developers
Describe the work and compare proposals. You only fund the first milestone once you have chosen someone.