Freelancer profile translated to English.
Back to original languageAbout Sarah Sali
Sarah is passionate about the Data field. Data Steward, Database Manager, and Data Governor with 7 years of experience in data quality management, governance, and valorization. Expert in establishing and managing repositories, defining business rules, ensuring data reliability, and supporting business teams.
Specialized in MDM (Stibo) environments and data quality. Capable of intervening in data transformation projects, structuring processes, documenting data assets, and improving data compliance.
My approach combines technical expertise (SQL, Python), business understanding, and the ability to guide organizations towards a better data culture.
English
Fluent
Arabic
Native or bilingual
French
Native or bilingual
Can work on-site
Paris (up to 20km)
Experience
- Layer DataData Steward ConsultantJanuary 2026 - March 2026 (2 months)Puteaux, FranceData migration from SAP to S4HANA● Processing and Analysis of data files in Excel● Column Mapping● Writing reports summarizing the status and evolution of the processed file● Meeting deadlines and ensuring data quality● Participation in meetings and exchanges with the client● Creating Python code to facilitate data cleaning
- RATPHR Data AnalystTRANSPORTATIONSeptember 2025 - November 2025 (2 months)● Data reliability for rail sensors,● Performing format and quality checks,● Implementing corrections,● Work for business data alignment,● Setting up and managing operational reporting (daily/weekly/monthly).● Deploying a new Power BI report● Integrating Python scripts for data processing● Creating technical documentation (Python and Power BI scripts)● Creating and updating business documentation (procedures).● Updating data in Cognos.Environment: Python, Teams, Power BI, Excel, Microsoft
- GedexLevel 3 Technical SupportCIVIL ENGINEERINGMarch 2022 - March 2025 (2 years and 11 months)● Support for 4 business sectors (approx. 10 users).● Structuring of price, product, and technical data repositories.● Meeting deadlines and ensuring data quality● Supporting teams in the use of the new software and new processes● Analysis of data-related incidents● Correcting anomalies and tracking incidents● Facilitating business workshops & user training.● Writing guides and procedures to facilitate tool adoption.● Quality control and validation of data before integration.● Incident Management (L3) & coordination with manufacturers.● Member ticket management● Use of ticketing tools● Diagnosing and evaluating business teams on the use of the new software
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Education
- Professional Degree in Data MiningUniversité Marne La Vallée2018Statistique de la donnée, Big Data, R, SQL, Analyse de la donnée, Etudes statistique, Etudes de cas, Mathématiques de l'informatique
- BTS in Information Technology Services for OrganizationsEfrei2018Gestion de projets, Langages de Programmation, Algorithme, Projet, mathématiques de l'informatique, Veille technologique
Certifications
- Advanced EnglishKaylane2021