Freelancer profile translated to English.
Back to original languageAbout Marouane
🙋♂️You are on the right profile🙋♂️
👤I am Marouane, Senior Data Engineer with over 6 years of experience in the Retail and Telecommunication industries.
🤵 I handle various issues:
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- Support in defining your needs
- Design and writing of Technical Specifications
- Design of data models and processes
- Development of Data pipelines
- Testing of solutions (Unit, E&E)
- Creation of scheduled jobs and orchestration
- Build & Run
- Tool maintenance
🦾 Expertise Tools
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🌀 Data Analysis : Python, SQL, Excel VBA
☁️ Cloud: GCP, AWS
🗃️ Databases : Teradata, BigQuery, CloudSQL, MySQL, MariaDB, Hive, Oracle, PostgreSQL
🌐 BigData: Hadoop, Spark, Kafka, RabbitMQ.
👨🏻💻 BI : ETL, Informatica PowerCenter, Dataiku
📈 Visualization : PowerBi, ChartJS, Looker
📞 Contact me via messaging with your projects to organize a session on the context of your requests.
French
Native or bilingual
English
Fluent
Arabic
Native or bilingual
Spanish
Basic
Can work on-site
Paris (up to 50km)
Experience
- CARREFOUR_LocationData EngineerRETAIL (LARGE RETAILERS)September 2023 - Today (2 years and 9 months)Massy, France
- Collaborate on the migration of tables from Oracle to BigQuery, actively adapting existing scripts to BigQuery syntax. Work with the team to identify and resolve script dependencies and complexities, ensuring a smooth transition and minimal disruption to data operations. Contribute to rigorous testing procedures to validate script modifications and data integrity, fostering a collaborative environment and optimizing migration efficiency.
- Participate in securing pricing applications, ensuring adherence to planned implementation dates and generating reports and KPIs to measure pricing effectiveness.
- Work on the development and maintenance of fuel pricing algorithms, fixing bugs and ensuring optimal performance.
- C2S BouyguesData EngineerTELECOMMUNICATIONSMarch 2022 - August 2023 (1 year and 6 months)Vélizy-Villacoublay, France
- Managed the large-scale migration of web application logs, averaging 16 TB per day, concerning technical interventions as part of Bouygues Telecom's transition from Teradata to BigQuery. Collaborated cross-functionally to ensure seamless data migration and integrity, implementing quality control measures to guarantee accuracy and optimization.
- Participated in a collaborative project to integrate historical data into the data warehouse, focusing on tracking group gross revenue and equipment quantities.
- Groupe CasinoData Analyst Pricing / BI ETL DeveloperRETAIL (LARGE RETAILERS)February 2018 - February 2022 (4 years and 1 month)Saint-Étienne, France
- Led the development of Informatica v9.6, Teradata, and Shell Script applications, utilizing advanced technologies to streamline and enhance data management processes.
- Created datamarts, implementing best practices and optimizing ETL job schedules to significantly improve data loading efficiency and reduce processing times.
- Regularly monitored and managed production processes, implementing proactive measures to maintain uninterrupted operations and promptly resolve any potential disruptions, thereby optimizing system uptime and reliability.
- Held a pivotal role in supporting pricing strategies by managing Teradata and MySQL databases, providing crucial insights and analysis to stakeholders, and implementing data processing enhancements to foster informed decision-making and achieve organizational objectives.
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Education
- Master in Data and Connected SystemsUniversité Jean Monnet2018Parcours formant des spécialistes capables de répondre aux problématiques de massification des données et d'interconnexion des systèmes informatiques et objets communicants liés à la métamorphose numérique actuelle (web, Internet des objets, big data) en maîtrisant la chaîne de traitement allant de la donnée brute à son analyse, ainsi que son exploitation dans des systèmes intelligents interconnectés.
- Bachelor's degree in Physical Sciences for EngineersUniversité Hassan II Casablanca2015formation technique rapidement opérationnelle tout en leur assurant une culture générale dans le domaine des sciences et techniques qui leur permettraient facilement de s’orienter vers les métiers de l’ingénieur.