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Freelance ai agent developer – voice agent

Freelance
FreelanceJobs
Developer
US$30 - US$100 an hour
Posted: 26 February
Offer description

French required

We are a Belgian agency specialized in conversational AI for SMEs. Our mission is to make AI accessible and help our clients stay available 24/7 for their customers thanks to high-performing virtual receptionists.

What makes our approach different is clarity: we remove technical complexity for our clients and deliver high-ROI solutions, without jargon, fully integrated into their business processes.

As we expand our services, we're looking for a freelance developer passionate about AI and automation, able to design and integrate virtual receptionist solutions directly for our clients.

Technical responsibilities

* Voice agent build: Develop and configure intelligent voice agents using Vapi (or Retell).
* n8n automation: Build and maintain robust workflows to orchestrate data capture and synchronization.
* Business integrations (CRM & tools): Connect agents and workflows to client tools (CRM, calendars, Google Sheets/Airtable, etc.).
* Telephony integration: Connect agents to phone providers (Twilio or similar).
* Documentation: Deliver clean deployments with clear documentation + Loom walkthroughs, and reusable templates.

Why work with us?

* A forward-thinking agency: We're not a traditional web dev agency. Our mission is to become a leader in the fast-growing Voice AI space.
* Steady, diverse project flow: Ongoing collaboration opportunities across varied use cases (retail, real estate, customer support, etc.).
* Collaborative approach: We value technical expertise and aim to build long-term relationships based on trust and autonomy.

Why this role is interesting

* Efficiency-first model: We've optimized our processes to make projects smooth and time-efficient.
* Growth opportunities: Strong performance can lead to long-term collaboration on more advanced and innovative projects.
* Impactful work: Help SMEs never miss a customer again with 24/7 availability—while contributing to a meaningful mission.

Ideal profile

* Strong experience with Voice AI tools (Vapi/Retell or equivalent) and solid prompting fundamentals.
* Expertise in automation (n8n) and integrations (APIs/Webhooks).
* Ability to document each deployment clearly and professionally.
* Fluent French required.
* Solution-oriented mindset: Able to recommend the best architecture for a given business need.

To apply
Please send:

1. A brief summary of relevant experience (Voice AI / Vapi or Retell, n8n, API/Webhook integrations).
2. One similar project you've delivered (or how you would approach it) and the stack used.

Contract duration of 1 to 3 months. with 10 hours per week.

Languages: French.

Mandatory skills: VAPI, n8n, ai receptionist, voice ai, retail ai, Automated Workflow, French, AI Agent Development

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