Freelancer profile translated to English.

Description

Passionate about data, I started as a full-stack developer before specializing in Data Science. I enjoy understanding business problems, analyzing data in depth, and building solutions that have a real impact.

Curious, rigorous, and results-oriented, I work with Python, SQL, and orchestration tools like SSIS.

I have completed several comprehensive projects: scraping, data warehousing, automation, and predictive models to identify product trends.

Today, I put these skills to the service of companies that wish to leverage their data to make better decisions.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent
Arabic
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 50km), Metz (up to 50km)

DataStorm
Data Scientist
February 2024 - November 2024 (9 months)
Luxembourg, Luxembourg
Project: Sales prediction
Extraction of multi-source data using Python web scraping (BeautifulSoup, requests, Selenium).
Modeling and design of an ETL model with SSIS for data storage.
Development of a sales prediction model with TensorFlow/Keras (dense architecture + BatchNorm + Dropout + early stopping).
Model optimization via SMOTE for class rebalancing and hyperparameter tuning (GridSearchCV).
Implementation of an automated workflow under SSIS for data orchestration (staging → Warehouse).
Design of analytical data models (Power BI, DAX).
Model performance monitoring.
Environment: Python (BeautifulSoup, requests, Selenium), ETL, SSIS, Data Warehouse, TensorFlow/Keras, SMOTE, ROC AUC, Accuracy, ROC curve, Power BI, DAX.
Python ETL model-optimization predictive-modeling Microsoft Power BI
DataStorm
BI Consultant (Assignment)
November 2023 - February 2024 (3 months)
Luxembourg, Luxembourg
Client: Investissements Azimut
Assistance in workshops and participation in the development of technical specifications.
Development of comprehensive technical specifications to support the migration process and meet project requirements.
Modeling and design of a data warehouse (star schema).
Migration of data from an existing database to a new data warehouse using SSIS (SQL Server Integration Service), ensuring the structure of portfolio classifications.
Adaptation of existing stored procedures to the new data architecture.
Validation and non-regression testing.
Detailed documentation of SQL procedures related to portfolio classification to facilitate future maintenance and scalability.
Documentation of production workflows (Python script).
Environment: Python, SSIS, SQL Server 2019, SQL, T-SQL.
TECME-IT,
Technical Team Lead
February 2020 - September 2023 (3 years and 7 months)
Tunisia
Supervision of a team of full-stack developers in an Agile/Scrum environment, managing sprints, code reviews, and continuous integration (CI/CD).
Design of modular application architectures based on Spring Boot and Angular, ensuring scalability and performance.
Definition of development and technical documentation standards, writing functional and technical specifications, and monitoring validation tests.
Development of responsive front-end modules (Angular, JavaScript, TypeScript, SCSS) and secure REST APIs with JWT/OAuth2 on the back-end.
Implementation of a continuous integration (CI/CD) pipeline with GitHub Actions and Docker, automating deployment on internal servers.
Design and administration of relational databases (MySQL, PostgreSQL), query optimization, and creation of analytical views for business teams.
Mentoring new hires, training on DevOps best practices, Git, and code quality.
Participation in strategic project planning, technology choices, and continuous improvement of delivery processes.
Environment: Spring Boot, Angular, Java, JavaScript, TypeScript, HTML/CSS, SCSS, Docker, GitHub, REST API, MySQL, PostgreSQL, Jira, Agile/Scrum.