Freelancer profile translated to English.
Back to original languageAbout Oussama
Freelance Data Analyst | I make your data understandable AND actionable
I build your turnkey ETL pipelines: automatic collection, surgical cleaning, custom modeling. From your raw sources to your dashboards, I handle everything.
My typical missions:
- Creation of robust ETL flows (API, SQL databases, CSV files → centralized warehouse)
- Cleaning and standardization of disparate data
- Modeling adapted to your business needs
- Intuitive dashboards that speak to your teams
- Dashboards that read like a comic book
- Insights that can be understood without being a data scientist
- Support to make your teams autonomous
My added value:
- I translate technical into business.
- Your employees understand what they see and know what to do with it.
My promise: Your data will finally be a real decision-making tool, not a headache.
Technical Stack: SQL, Python, Power BI, REST APIs, PostgreSQL, MongoDB
I transform your raw data into clear, reliable, and actionable information. No technical jargon, just results that give your projects a real boost.
Available for short or long-term assignments. Remote or on-site according to your needs.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km), Lille (up to 50km), Toulouse (up to 50km), Bordeaux (up to 50km), Lyon (up to 50km)
Experience
- amazonData AnalystDIGITAL AND ITOctober 2024 - March 2026 (1 year and 5 months)Paris, France— Performance monitoring: design of automated Amazon QuickSight dashboards for critical KPI tracking (On-Time Delivery, Success Rate)— Network and cost optimization: geospatial analysis via Amazon Redshift to maximize delivery route density— Forecasting and capacity planning: modeling parcel volumes using Python to anticipate activity peaks (Peak Season)— Communicating insights to operations managers stakeholders-> -12% operational costs, +20% planning reliabilityTechnologies: Python, SQL (Redshift/Athena), AWS Glue, Amazon QuickSight, S3, REST API
- Air FranceFinance Data AnalystAVIATION AND AEROSPACEJanuary 2004 - October 2024 (20 years and 9 months)Paris, France• Project Manager: Major digital transformation, defining the allocated budget (350 million)• Leading an interdisciplinary team (5 people) in the Finance management control department.• Creation of an innovative automatic tool for calculating the IT innovation rate.• Integration of an interactive dashboard detailing all rate-related data. 200 active users, dynamic visualization and advanced filters.• Detailed review and challenge of the rate calculation method to optimize IT costs (20% cost reduction).Environment: Excel, PowerPoint, PowerAutomate, Teams, Python, Streamlit, Azure, Power BI and Agile Methodology
- CNESData Engineer-AnalystAVIATION AND AEROSPACENovember 2023 - February 2024 (3 months)Paris, France• Participation in the development, integration, testing phases, and maintenance of the CubeSat project.• Write and draft specifications for the automation of business rules for the information systems department.• Understand precisely the issues and functional needs and translate them analytically.• Design of a ground data management chain with an interactive dashboard, making complex data understandable and actionable.Environment: Python, R, PostgreSQL, NoSQL, Hadoop, Docker, Kubernetes, Git, Linux and Grafana
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Education
- Master of Engineering in Data and AIISAE - ENSMA2024Du capteur brut au dashboard clair, collecte (Python, SQL), nettoyage (pandas, ETL), modélisation (stats, ML) et restitution (Power BI, Tableau) avec un projet fil rouge « data-driven » sur simulateur aéro.
- Scientific Baccalaureate with Mathematics optionLycée Albert Schweitzer2019Mention Très Bien