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Fullstack AI Developer (M/F) - Freelance
France | Sept. 26, 2026
Company: Collective.work
Country: France
Type: Onsite
Employment: Full-time
Description: CONTEXT
As part of the development of several AI products, our client is looking for a Fullstack AI Developer to join a team of 5 developers, with a strong backend and agentic focus.
The team directly develops its own interfaces and AI solutions, relying mainly on Google Cloud Platform services.
YOUR MISSIONS
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Develop AI applications fullstack, with a dominant backend in Python and interfaces in React
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Design AI agents with Google ADK, with their own tools and uses of RAG / similarity search via BigQuery
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Work on use cases for generating and processing multimodal content: text, images, videos, translation and Word/Excel documents
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Develop integrations such as Microsoft Teams chatbots and Office add-ins
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Participate in the quality and monitoring of applications: test scenarios, observability, alerting and flow transfers
TECHNICAL ENVIRONMENT
Development
Python - React
AI & Agentique
Google ADK - AI Agents - RAG
Google Cloud Platform
Vertex AI - Cloud Run - Cloud Functions - BigQuery - Airflow / Cloud Composer
Ecosystem
Playwright - Microsoft Teams - Office - Image / video generation - Translation
PROFILE WANTED
We are looking for a very hands-on profile, at least 5 years of experience capable of developing an end-to-end AI functionality.
The main skills sought are :
Python / React / GCP / Vertex AI / Google ADK / Cloud Run and Functions / BigQuery
Concrete experience in developing AI agents, creating tools, RAGs, APIs and putting GenAI solutions into production is particularly important.
The ideal profile remains above all a developer: someone who likes to code, test, integrate and put into production, rather than a purely Data, architecture or advice.
TERMS
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Freelance mission: 36 months
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Saint-Ouen, Ile-de-france (Metro line 14)
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2 to 3 days of teleworking per week
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ASAP start-up
Apply here:
Web: Apply here
Emails:
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