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Collective.work

185 jobs

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185 jobs Posted Sort

Collective.work

Quality & Business Analyst - Assurance - Freelance (H/F)

Freelance quality & business analyst embedded in an insurance client's Agile product team: refines business needs, writes user stories, and owns the test strategy — functional, API, non-regression and performance testing with Jira/XRAY, Postman/Newman/Bruno and Gatling, plus test automation in CI. Fluent French and English required.

Agile API Gatling Jira Postman +2 skills

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Développeur.euse Node JS / Typescript / AWS - Freelance (H/F)

Freelance Node.js/TypeScript developer (6-8 years' experience) to help Collective.work's client redesign and migrate their business web applications on AWS. Day-to-day: building APIs and event-driven architectures, CI/CD pipelines (GitLab), data flows, and AI-powered features (LLM, RAG); Angular and MongoDB/DynamoDB knowledge are a plus.

Angular API AWS CI/CD DynamoDB +7 skills

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Business Analyst Senior / Product Owner Data - Freelance (H/F)

EuropeContractSenior

Freelance senior Business Analyst / Product Owner role in Paris on a Data Factory modernization project, migrating legacy data assets to SAS Viya for regional banking entities. Day to day: functional scoping, backlog and roadmap management, writing user stories, running business acceptance testing, and supporting user adoption and change management.

SAS User Stories

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Concepteur / Développeur C# .NET Banque (H/F) - Freelance

Freelance contract (TJM €430) to design and develop C#/.NET 3.5 web (IHM) and batch applications for a strategic banking project (Projet Orion), including corrective and evolutive maintenance of the .NET platform. Work runs in an Agile squad (Scrum/Kanban, scaled agility) using C#, ASP.NET 3.5, Spring.NET, XLD/XLR, JIRA, Confluence and X-Ray.

Agile Confluence C# .NET Jira +3 skills

430 – 430 € / day

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Data engineer / infraOps senior - scalabilité, MLOps & infrastructure IA - Freelance (H/F)

EuropeContractSenior

Freelance senior data engineer / infraOps (~3-month mission, up to €540/day) to make an AI-powered quiz-generation app attached to Pronote scalable and highly available: task queues with TaskIQ, load testing and balancing, two-datacenter backup/replication, monitoring and logging, plus helping deploy AI models on dedicated sovereign infrastructure.

Data Engineering MLOps

up to 540 € / day

Collective.work

Bras droit CIO Advisory - Senior Manager / Directeur CDI (H/F) - CDI

Senior Manager/Director acting as right hand to the CIO at a human-scale French IT consulting firm: you advise CIOs of large groups and mid-caps on IT strategy, governance, operating models and complex transformation programs, prepare executive committees, support due diligence/M&A work, coach consultants and help win new business.

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Expert Administration Système Stockage/Storage Mainframe Z/OS - Freelance (H/F)

Freelance mission for a senior z/OS mainframe storage administrator in Île-de-France, serving the BNP Paribas group's storage estate: supporting and deploying DFHSM and CA1 Vantage, optimizing DASD and VTS tape capacity across sysplex/geoplex environments, with 2 days remote per week and on-call duty.

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Business Analyst Data confirmé - Connaissance Client - Banque (F/H) - CDI

Confirmed Data Business Analyst (permanent role) hired by CELAD to work at a major banking client's IT department, improving customer knowledge, segmentation and marketing performance through data. Bridges business, Data and IT teams: gathering requirements, running scoping workshops, writing functional specs, coordinating stakeholders and running functional acceptance tests.

BigQuery Cloud CRM ETL GCP +6 skills

54K – 54K €

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Administrateur(trice) Jira et outils transverses - Freelance (H/F)

Freelance mission (52 days over 6 months) to administer a single Atlassian instance and cross-functional tools (Jira, Confluence, Product Discovery, Figma, Power BI) for a banking & finance client: permissions, workflows, automation, user support, and knowledge transfer to internal relays. Mostly remote, 550 EUR/day.

API Atlassian Confluence Figma Jira +1 skills

550 – 550 € / day

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Ingénieur Backend Python / APIs / ReactJS - Volumétrie & Temps Réel - Freelance (H/F)

Backend-focused Python engineer to modernize a legacy PHP/Drupal industrial information system: building performant REST APIs, tackling performance/volume/cost issues in a large-scale data aggregation tool, and occasionally contributing to ReactJS front-ends. CDI or freelance, Paris-based with 2 remote days/week; stack: Python, React, AWS, microservices.

Agile API AWS Cloud Flux +7 skills

45K – 55K €

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Analytics Engineer / Data Engineer - Freelance (H/F)

Freelance 12-month mission in Paris (2-3 days remote/week) for an analytics/data engineer to industrialize transformation pipelines, build semantic layers and governed datasets for a large international retail platform. Core stack: AWS, Databricks, dbt, Airflow, SQL/Python, Spark, Tableau.

Airflow Analytics AWS Aws Glue Azure +23 skills

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Développeur Korn Shell / Shell (F/H) - CDI

Salaire: 480-500 Nous recherchons un.e Développeur.euse Korn Shell / Shell confirmé.e pour rejoindre une équipe en charge de la maintenance et de l'évolution d'applications liées à la valorisation des OPCVM.…

Bash CI/CD Cloud COBOL Git +4 skills

Collective.work

Tech Lead - Freelance (H/F)

EuropeContractLead

Freelance Tech Lead for a squad based in Paris (Bercy Village), driving software design, code reviews, key technical decisions and DevSecOps/CI-CD practices while coaching developers and QA automation. Core stack: Java/Spring, Angular, REST APIs, Kafka, PostgreSQL/MongoDB, Kubernetes/Docker and Jenkins-based CI/CD.

Angular API Automation CI/CD Cloud +13 skills

Collective.work

Directeur de Programme & PMO - Titres / IT - Freelance (H/F)

Freelance Program Director & PMO mission embedded in a client's IT department (DSI) to structure and steer the annual IT project portfolio and a strategic securities ('Titres') program: running governance committees, reporting, master planning, CAPEX/OPEX budget tracking and risk management with tools like MS Project, Confluence and EVM.

750 – 750 € / day

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Data / IA Engineer - Freelance (H/F)

Freelance Data/AI Engineer mission (475 €/day) for a healthcare & pharma client in France: you design, industrialize and run data pipelines and AI applications on a shared Data Platform built on Azure AI Foundry, using Python/Java/Shell, Snowflake, Matillion/Azure Data Factory/dbt and cloud CI/CD tooling.

AI Analytics Ansible Azure Azure Data Factory +12 skills

475 – 475 € / day

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Développeur embarqué confirmé - Freelance (H/F)

Freelance senior embedded software developer (3+ years) to design and build a new connectivity module for connected fitness and sports equipment, from POC through production. Day-to-day: embedded C on Espressif MCUs with FreeRTOS, BLE/UART/CAN/Wi-Fi, embedded security (TLS, secure boot), unit and bench testing, and CI/CD with GitHub Actions.

Atlassian Can Bus CI/CD Cloud Confluence +9 skills

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Senior Full Stack Azure & Agentic AI Engineer - Freelance (H/F)

EuropeContractSenior

Freelance senior engineer designing and building secure, production-ready full-stack apps and generative/agentic AI solutions on Azure for a major regulated banking client: Python/FastAPI back ends, Angular/TypeScript front ends, RAG and multi-agent pipelines with LangGraph/LangChain, deployed via Azure DevOps and Terraform. 12-month renewable contract in Paris, hybrid 2-3 days on-site.

Agentic AI AI Angular API Azure +25 skills

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Product Owner Technique - Plateforme d'IA agentique H/F - Freelance

Freelance Product Owner mission to define and industrialize an agentic AI platform built on LangGraph Platform for a large banking group. Day to day: shaping the product vision, MVP and roadmap, prioritizing the backlog, writing specs, and steering pilot AI agent use cases to production in a secure, governed environment.

AI DevOps LangGraph MLOps User Stories

750 – 750 € / day

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Développeur IA - Freelance (H/F)

Freelance AI developer (day rate €520) to reinforce Bpifrance's MTA team: building AI agents, advanced chatbots and LLM integrations (Mistral, GPT, Claude), plus secure API orchestration, RAG/memory mechanisms, observability and DevSecOps in Python/FastAPI with some Node.js/TypeScript.

Agentic AI Agile API Azure Azure Functions +19 skills

520 – 520 € / day

Collective.work

Architecte SI / Architecte fonctionnel - Freelance (H/F)

Freelance information-system / functional architect mission (€650 per day) reinforcing a client's teams on SI transformation projects: analyzing business process impacts, defining integration interfaces with partner systems, and designing target architectures with transition roadmaps. Core skills: SI urbanization, functional architecture, ArchiMate, fluent English and mandatory SAFe certification.

650 – 650 € / day