ADFreelancer profile translated to English.
Back to original languageAbout Anne
🚀 Senior Data Engineer: Big Data and AdTech Expertise
Senior Data Engineer with over25 years of experiencein tech, I help companies design, optimize, and ensure the reliability of their large-scale data pipelines. Specializing in Big Data (Hadoop, Vertica, ClickHouse, Kubernetes…), I have led international projects in AdTech, audience measurement, and programmatic advertising.
Versatile and passionate, I possess a wide range of skills fromdata engineeringto **software development**. Obsessed with performance and efficiency, I help my clients transform their data flows into measurable performance levers: speed gains, quality, automation, and scalability. Pragmatic, rigorous, and results-oriented, I undertake data engineering, cloud migration, cluster optimization, and analytical performance improvement missions.
đź’ˇ I can help you to:
- Design and maintainscalable and reliable data architectures.
- Optimize the performanceof your Big Data systems (up to 90% reduction on critical queries).
- Manage complex data migration or integration projects**from A to Z**.
- Ensure the continuity and resilienceof your data systems during mergers and acquisitions (proven experience with AppNexus, Xandr, Microsoft).
- Guarantee data qualityand the reliability of monitoring and alerting systems.
👉 Production, performance, and reliability-oriented, I am the ideal profile for your demanding consulting projects requiring senior Data Engineering expertise and strong knowledge sharing.
French
Native or bilingual
English
Fluent
Can work on-site
Toulouse (up to 50km)
Experience
- SparteoSenior Data EngineerMarch 2024 - November 2024 (8 months)59200 Tourcoing, FranceManagement and optimization of ClickHouse clusters in a Kubernetes environment. Development of data pipelines using Redpanda, Logstash, and ClickHouse.Design and implementation of aggregates to improve Analytics performance.Setup of alerts and monitoring to ensure system reliability.Collaboration with AI and developer teams to optimize queries and schemas, resulting in query execution time reductions from 10% to 90%.Design and automation of integration tests to validate data end-to-end.Migration of data to new clusters, ensuring business continuity.Documentation of schemas and processes.
- MicrosoftSenior Data and Software EngineerJanuary 2010 - December 2023 (13 years and 11 months)Setup and maintenance of Java data pipelines for reporting, visibility prediction, and fraud detection on Hadoop and Vertica for over 6 billion impressions per day.Responsible for data quality; implementation of unit, functional, and end-to-end tests.Design and development of applications for integrating third-party measurements (AdSquare, Nielsen…) and data sharing with Netflix.Automation of integration and deployment tasks.Configuration of development, testing, and production environments.Implementation of monitoring and alerting systems.
- AC NielsenDatabase AdministratorMarch 2000 - July 2010 (10 years and 4 months)SQL Server and Oracle DBA.Management of offshore operators (India).Datacenter relocation from Paris to Cincinnati (Ohio, USA).Responsible for audience measurement data production.Implementation of data production procedures.Consultant support.
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Education
- Business ITCNAM (National Conservatory of Arts and Crafts)1996Informatique d'Entreprise
- Preparatory ClassEPITA (School for Information Technology and Advanced Techniques)1994