Atos is the Atos Group brand dedicated to AI-powered, secure, end-to-end digital services. Atos designs, develops, and operates critical digital environments that drive performance, resilience and sovereignty, helping public and private organizations worldwide retain control over their data and infrastructures, while meeting regulatory requirements. With more than 54,000 employees serving over 4,500 clients across 54 countries, Atos helps modernize core IT systems, accelerate cloud and data transformation, strengthen cybersecurity, and deliver secure digital workplace environments to support its clients, its employees and society. Atos also provides consulting and advisory services through its Atos Amplify brand. A trusted partner in operating complex and mission-critical environments, Atos supports organizations across highly regulated and sovereign contexts. About Atos Group Atos Group is a global leader in digital transformation with c. 56,000 employees and annual revenue of c. €7.2 billion (at the go-forward perimeter), operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is listed on Euronext Paris. 8+ years in data engineering, analytics engineering, or data architecture, with 4+ years in an architect or senior Business-As-Usual (BAU) production-support capacity. Demonstrated experience creating source-to-target mappings and logical/physical data models for enterprise warehouse or integration platforms. Deep hands-on experience with Google BigQuery and GCP data services (Cloud Storage, IAM, multi-project patterns). Strong experience with Apache Airflow or Cloud Composer for batch ETL orchestration. Expert-level SQL for complex analytics and ETL (CTEs, window functions, incremental logic, deduplication, SCD2). Proven ability to review and critique ETL code/SQL and mentor developers on implementation quality. Proven ability to debug end-to-end data pipelines: source → lake → integration dims/facts → reporting. Experience with enterprise dimensional modeling (star/snowflake schemas, conformed dimensions, fact grain, bridge tables). Excellent written communication; able to produce client-facing specifications and developer-facing implementation guides from the same design. Comfortable working across time zones with offshore development teams and structured ticketing (Jira or equivalent). Here at Atos, diversity and inclusion are embedded in our DNA. Read more about our commitment to a fair work environment for all. Atos is a recognized leader in its industry across Environment, Social and Governance (ESG) criteria. Find out more on our CSR commitment. Choose your future. Choose Atos.