Senior Data Engineer / Data Analyst,Senior Data Engineer / Data Analyst Profile - Photon Client - Onsite - Contract LanguagesFrench (native)English (professional)Look for 8+Years6months+extensionLocation: Clichy , ParisInterview rounds will confirmSenior Data Engineer/Data Analyst profile to manage applications related to the CDMO (Chief Digital & Marketing Office) business, within a dynamic team with diverse roles (Tech Lead, Full Stack Developer, Data Scientist, Product Owner, QA, etc.).One of the applications, One Creative, provides a comprehensive view of media asset performance and optimization—from global strategy down to local activation.The mission includes:Developing and maintaining data pipelines for:Data sourcing (BigQuery Datalake)Downloading video assets via social media platform APIsCreative analysis (internal Augmented DAM application)Automation of AI workflows (embedding, clustering)Transforming raw Datalake data into optimized tables for the One Creative application (merging performance KPIs, metadata, creative data, etc.)Optimizing backend deployment on GCPImproving the codebase by adding unit and integration tests to Python codeDeveloping an initial monitoring layer for retrieved data (assets, KPIs)Modernizing technical components (thumbnails, product detection, encoder) with more modern and efficient approachesOptimizing the CI/CD pipelineWorking on the migration of the Augmented DAM backend (another internal application used as a service within One Creative)Developing SQL queries to source data into Datalake tables, based on inputs from the Data Business OwnerDocumenting data extracted from the Datalake using documentation and data diagramsEnsuring the quality of consolidated data in the application compared to source dataSupporting the development of monitoring metrics for application KPIsAnalyzing and cross-referencing data to generate new insights (creative data driving the highest performance, etc.) and benchmarks