AI Voice Agent Developer | Vapi + n8n + Claude Inbound & Outbound Call Automation with Retell AI

Posted 3 days ago
Summary

We're losing leads because inbound calls go unanswered and outbound follow-ups happen too slowly. We're looking for an experienced AI Voice Agent Developer to build a reliable, natural-sounding voice assistant that handles calls, qualifies leads, books appointments, and keeps our CRM updated automatically, without sounding robotic. The backend automation will run through n8n and Make.com, with Claude powering conversation logic and call summarization. Before the full engagement begins, all applicants will complete a small paid test project ($10 fixed price) so we can evaluate real working style and technical fit — strong performance leads directly into the full role.

Expert
Experience Level
$10.00
Fixed-price
Remote Job
One-time project
Project Type

Skills and Expertise

Mandatory skills
Artificial Intelligencevapi

Activity on this job

Proposals: 20 to 50 Interviewing: 1 Invites sent: 1 Unanswered invites: 0

About the client

Member since Jun 14, 2026
Australia
Adelaide
$249 total spent
27 hires, 7 active

Explore similar jobs on Upwork

How it works

Create your free profile

Highlight your skills and experience, show your portfolio, and set your ideal pay rate.

Work the way you want

Apply for jobs, create easy-to-buy projects, or access exclusive opportunities that come to you.

Get paid securely

From contract to payment, we help you work safely and get paid securely.

Want to get started? Create a profile

About Upwork

★★★★★ 4.9/5
(Average rating of clients by professionals)
G2 2021
#1 freelance platform
49,000+
Signed contract every week
$2.3B
Freelancers earned on Upwork in 2020

Find the best freelance jobs

Growing your career is as easy as creating a free profile and finding work like this that fits your skills.

Find Work

Trusted by