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AI Engineer / Agent Builder - Freelance

Company: Collective.work

Location: Paris, London

Posted: May 23, 2026

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Position Details

Job description


Daily rate: 550-600

About the mission


We are supporting a fast-growing French unicorn looking to accelerate the industrialization of AI across the organization.


The objective is not simply to test AI use cases, but to build a real internal AI capability able to design, develop, deploy, and scale AI agents that automate high-value business workflows across multiple teams such as Finance, Accounting, Customer Success, Business, and other operational functions.


This is a highly technical, end-to-end role for someone who combines strong expertise in LLMs, agentic systems, RAG, fine-tuning, orchestration, and Python engineering with the ability to understand business processes and turn them into production-ready AI systems.


The consultant will first help identify and build high-impact MVPs for internal teams, then progressively industrialize those solutions into more robust and scalable agent-based sys...