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AI role · Open offer

AI Engineer / Développeur IA Full Stack — Freelance

Collective.work

Freelance
Senior
Agentic AI
Hybrid
45 Rue Louis Blanc, 92300 Levallois-Perret, France · Hybrid
EUR 550-750/day

This listing is optimized for AI-native talent: clear skills and tools so candidates know if they fit before they apply—and so you spend less time screening mismatches.

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At a glance

How you'll work, where, and key listing dates.

Employment: Freelance
Workplace: Hybrid
Location: 45 Rue Louis Blanc, 92300 Levallois-Perret, France · Hybrid
Compensation: EUR 550-750/day
Experience level: Senior
Team: Agentic AI
Benefits & perks: Mission longue, rythme hybride, onboarding rapide.
How to apply: Montre un projet RAG/agents livré en production avec métriques.
Company site: www.collective.work
Listed: Jun 30, 2026
Updated: Aug 3, 2026

About this role

What the team is looking for and how this position fits.

Collective.work is hiring a Senior AI Engineer / Développeur IA Full Stack — Freelance on the Agentic AI team (Hybrid · Levallois-Perret, France). This is a hands-on role in LLM & generative AI—not a generic “AI enthusiast” post.

You will own LLM features, retrieval, agents, and evaluation end to end: problem framing, offline evaluation, safe rollout, and iteration from production signals. Success is measured with clear metrics (quality, latency, cost, or business KPIs)—not slide decks alone.

Collective.work accompagne des squads produit sur des cas IA générative, RAG et automatisation métier en contexte freelance premium.

Mission pour un Développeur IA Full Stack freelance : industrialiser des assistants internes avec contraintes coût/latence.

Ce que vous allez faire

Livrer en production des workflows agentiques et RAG en contexte client avec évaluation offline, monitoring et plan de rollback.
Travailler avec produit, métier et design pour cadrer les besoins et priorités.
Améliorer qualité des données, observabilité et KPI business liés aux usages IA.
Documenter runbooks, incidents et standards de sécurité pour l'équipe.

Profil recherché

Expérience concrète Python / stack ML-LLM avec features déjà déployées.
Bonne pratique SQL, expérimentation et communication claire aux non-tech.
Capacité à gérer les compromis qualité, coût, latence et sécurité.

Skills we're hiring for

What each capability means for this role—not a keyword checklist.

Python
Production Python for data pipelines, model code, APIs, and automated tests—not notebook-only workflows.
LangChain
Orchestrating LLM chains, tools, and retrieval with observable steps and failure handling.
SQL
Analytical SQL for features, cohorts, label quality, and experiment analysis at scale.

Tools & stack

Platforms and products mentioned for this role (APIs, IDEs, vector DBs, CRMs, design tools, etc.).

Vector DBsTool
Embedding storage, hybrid search, and freshness strategies for RAG and semantic retrieval.
DockerTool
Containerized services and reproducible dev environments for ML and LLM workloads.

You're a strong fit if…

Tailored to this listing—use it as a self-check before you apply.

You can show evidence in your application: Montre un projet RAG/agents livré en production avec métriques.
Several of these show up in recent shipped work—not only on your CV: Python, LangChain, SQL, Vector DBs, and Docker.
You have owned LLM features, retrieval, agents, and evaluation in production: debugging live issues, running postmortems, and iterating from real user or business signals.
You are comfortable with the hybrid rhythm (Hybrid · Levallois-Perret, France)—onsite collaboration when it matters, deep work when remote.
You explain trade-offs (quality, cost, latency, safety) in plain language—with numbers or examples, not buzzwords.
You read the full listing (comp: EUR 550-750/day, benefits in At a glance) and your expectations align.

Apply

Candidate accounts only: add your headline and bio on My account, and optionally a CV link or PDF so recruiters see your full résumé. Then write a short pitch below—applications use your login email.

What the employer asked for

Montre un projet RAG/agents livré en production avec métriques.

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Register, add a headline and bio, then you can attach a CV link or PDF on My account before you apply. That keeps applications tied to your profile and makes it easier for employers to review your background.

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