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Collective.work

Architecte Fonctionnel / Business Architect Senior - Domaine Marketing - Freelance (H/F)

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Freelance senior functional/business architect for a large energy group's transformation program, acting as the sole reference for the Marketing & Customer Experience domain (CRM, digital channels, product catalog, customer lifecycle). Hybrid role based in La Défense, Paris region, at a €700 daily rate.

700 – 700 € / day

Collective.work

Business analyst fonctionnel - Freelance (H/F)

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Freelance functional business analyst embedded in a bank's DSI 'Workplace' RSE team (13 people) in Charenton-le-Pont, on-site: gathering and prioritizing business needs, writing functional user stories, defining test strategies and supporting the rollout of the new application. Key tools include Excel, SaaS/low-code practices.

SaaS User Stories

400 – 400 € / day

Collective.work

Data Analyst PowerBI - Freelance (H/F)

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Freelance Power BI data analyst mission (€450/day) embedded in an agro-food group's small data team in Colombes, France. Day to day: build and maintain group-wide dashboards, design data models and DAX measures, and support business stakeholders, with reporting on a Databricks platform.

Databricks Power Query Power BI Python Snowflake +1 skills

450 – 450 € / day

Collective.work

AI Engineer - Plateforme agentique, RAG & agents LLM en production - Freelance (H/F)

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Freelance AI engineer builds and industrializes a shared internal agentic platform for a client of AI-native consulting firm Ever"T: LLM agent orchestration, RAG pipelines, MCP connectors, guardrails and memory, deployed on AWS with Python/FastAPI, plus CI/CD, observability, evaluations and run/support of internal platform users.

AI API AWS CI/CD Cloud +20 skills

Collective.work

Chef de Projet PMO - Portefeuille Technique H/F - Freelance

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Freelance PMO / project manager to steer a portfolio of technical projects within a French life-insurance IT platform: building roadmaps, running governance and budget/risk tracking, and driving the technical obsolescence programme (roadmap 2027, coordination with BPCE-SI). Day rate €530 excl. VAT.

530 – 530 € / day

Collective.work

AI Engineer GCP - Agent conversationnel - Freelance (H/F)

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Freelance mission (TJM €600) to maintain, evaluate and continuously improve a production conversational AI agent that lets business teams analyze their data in natural language via chat. Work centers on LLM-as-a-judge evaluation, A2UI/A2A protocols, and a native GCP stack (Vertex AI/Agent Platform, Cloud Run, Python, SQL).

AI Cloud FastAPI GCP LangChain +6 skills

600 – 600 € / day

Collective.work

Senior AI Engineer - Freelance (H/F)

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Freelance senior AI engineer to take over and evolve a production conversational data-analysis agent ('Talk to my Data') for a large French retailer: owning the LLM-as-a-judge evaluation framework, maintaining the platform in production, and running advanced LLM analyses. Stack: Python, GCP, Airflow; based in Massy-Palaiseau with 2 remote days per week.

Airflow GCP LLM Machine Learning Python

700 – 700 € / day

Collective.work

Ingénieur DevOps / SRE - RENNES - Freelance (H/F)

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Freelance DevOps/SRE engineer joining the internal Cloud Platform team (DSI) in Rennes, France, to design and run a scalable, resilient Microsoft Azure infrastructure using AKS, Azure Virtual Desktop, Terraform, Ansible, GitLab CI/CD, and Grafana/Prometheus, while ensuring production reliability, security, and cost/performance optimization.

AKS Ansible Azure Azure DevOps CI/CD +11 skills

Collective.work

QA fonctionnel mobile - Applications e-commerce iOS & Android - Freelance (H/F)

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Freelance functional QA tester validating new features on an e-commerce company's iOS and Android apps. The role is mostly manual functional testing against acceptance criteria defined by Product Owners, documenting defects and working with developers, with only ~5% contribution to test automation.

Android E-commerce iOS

Collective.work

Data Integration Engineer - Lille - Freelance (H/F)

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Freelance Data Integration Engineer based in Lille, France, who designs, builds and maintains ETL/ELT pipelines, APIs and connectors for a data platform built on Azure Synapse and Azure Data Factory. Requires 5+ years of data experience, .NET/programming skills, Git and DevOps/CI-CD practices; the daily rate (TJM) is a deciding factor.

API Azure Azure Data Factory Azure Synapse CI/CD +8 skills

Collective.work

Développeur fullstack expert (H/F) - CDI

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Expert fullstack Java developer (permanent role) joining a 5-person squad serving a large international retail client at Okara: ~70% hands-on coding, AI-assisted development, testing, documentation, and peer programming. Stack includes Java, PostgreSQL, MongoDB, Kafka, Docker, Kubernetes, cloud and CI/CD.

API CI/CD Cloud Docker Flux +7 skills

44K – 49K €

Collective.work

Cloud Product Owner - Freelance (H/F)

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Freelance Cloud Product Owner role in France: you own the vision, roadmap and backlog of a client's internal cloud platform, improve the user/developer experience, and drive adoption of standardized cloud services (compute, storage, network, automation). Requires solid product management experience plus cloud, DevOps, CI/CD and Agile knowledge.

Agile CI/CD Cloud Developer Experience DevOps +3 skills

Collective.work

Tech Lead Node.js / Angular - Freelance (H/F)

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Freelance Tech Lead to guide a team of 3 developers building a complex application for a defense-sector client, starting half-time in October then full-time on a 3-year mission, with 3 days/week on site. Backend-focused stack: Node.js, NestJS, Express, MQTT/RabbitMQ messaging, SQL Server and MongoDB, plus an Angular frontend.

Agile Angular API CSS Cypress +13 skills

550 – 550 € / day

Collective.work

Data Quality Manager / Data Steward - CDI - CDI (H/F)

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Collective.work, a data consulting firm, is hiring a Data Quality Manager / Data Steward to serve its clients: analyzing data quality incidents, digging into root causes, building automated quality rules, controls and KPI dashboards, and shifting teams from reactive to proactive data quality. Core stack: Python, SQL and dashboarding tools like Tableau.

Data Governance Data Quality Flux Python SQL +1 skills

40K – 50K €

Collective.work

Product Owner Data - Freelance (H/F)

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Freelance Product Owner (day rate €500) for Collective.work's enterprise DataLake team in France: runs business workshops, writes user stories, leads a team of 4 developers through Scrum/SAFe sprints, and ensures data quality. Stack includes Python, SQL, AWS, Elasticsearch, and HTTP APIs.

API AWS Python Scrum SQL

500 – 500 € / day

Collective.work

Développeur Android - Freelance (H/F)

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Freelance intermediate-level native Android developer working on an e-commerce client's mobile app: building screens in Jetpack Compose, migrating legacy XML UIs to Compose, integrating backend APIs, and occasionally contributing shared logic in Kotlin Multiplatform (~5-10% of scope).

Android API Api Design E-commerce Jetpack +2 skills

Collective.work

Product Owner Data Senior - Niort - Freelance (H/F)

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A freelance senior Data Product Owner joins a newly formed data team at a major insurer in Niort (on-site at least 3 days/week), acting as the bridge between business experts (contracts, actuarial, sales) and technical data teams: identifying data use cases, running solution studies, and prioritizing the data product portfolio.

Collective.work

Product Owner Data expérimenté - Freelance (H/F)

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Experienced freelance Data Product Owner to join the data development team of a large French insurance mutual, defining, prioritizing and delivering a portfolio of data products while bridging business experts and dev squads. Strong data/IT culture required, with mandatory on-site presence in Niort at least 3 days per week.

Collective.work

Software Engineer - Plateforme IA agentique - Freelance (H/F)

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Freelance software engineer to build and operate an internal agentic-AI platform at Ever"T, an AI-native tech consulting firm: backend services and REST APIs, conversational and admin interfaces, cloud deployment with CI/CD, tests and observability. Stack: Python/FastAPI, TypeScript/Next.js, AWS (ECS, S3, DynamoDB).

AI API CI/CD Cloud Docker +13 skills

Collective.work

Data Analyst Métrologie & Adoption Microsoft 365 - Freelance (H/F)

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Freelance data analyst embedded in a Data & Metrology squad: gathers business needs, then builds and maintains Power BI decision dashboards tracking Microsoft 365 adoption, device usage, compliance and deployment metrics, with data pulled via Graph API, ServiceNow and SQL. On-site 3 days/week in Chartres; strong presentation skills required.

Active Directory Agile API Azure Cloud +9 skills

560 – 560 € / day