Freelancer profile translated to English.
Back to original languageAbout Thiziri
Do you have data but don't know what to do with it? Or do you have a business problem and are looking for a concrete data solution?
I build end-to-end data solutions — from framing your problem to putting it into production — always keeping business impact as my compass.
What I've done concretely: fraud detection, network anomalies, sales forecasting on volumes of up to 15 million users at Free Mobile.
What I bring you: a structured approach, results understandable by your business teams, and a solution you can actually use.
Let's talk about your project.
English
Native or bilingual
Arabic
Fluent
French
Fluent
Can work on-site
Paris (up to 50km)
Experience
- Free MobileData Scientist & Analyst — Free Mobile (Iliad Group) 2024 – 2025 | MontpellierSeptember 2024 - November 2025 (1 year and 2 months)Montpellier, France
- Design and deployment of ML solutions on large-scale data — up to 15 million subscribers — in direct collaboration with business teams.
- Network anomaly detection: identification of IT malfunctions, models achieving +80% score (Isolation Forest, Random Forest, SVM)
- SIMBOX failure prediction: complete ELT pipeline, multi-source integration (logs, tickets, business databases), deployment via Airflow
- Hierarchical sales forecasting: automation of forecasts for strategic planning (Prophet, ARIMA, SARIMA)
- Behavioral fraud scoring: feature engineering on personal and behavioral data, decision support for business teams
- Stage, Sonatrach,Oil modelingApril 2021 - August 2021 (4 months)Algiers [El Djazaïr], Algeria– Oil production modeling (Python, Excel): historical analysis, forecasting via regressions and time series. – Power BI dashboard (Power BI, Excel): real-time visualization of production indicators for operational monitoring.
- GRTE Sonelgaz,Electrical grid optimization, InternshipNovember 2019 - March 2020 (4 months)Algiers [El Djazaïr], AlgeriaGrid performance analysis (R, Excel): descriptive statistics and anomaly detection on electrical flows. Flow modeling (R): simulation and optimization of energy transport (shortest path algorithms).
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Education
- Master MIND-SIAD, Management de l'information et de la décisionMIND2025Master MIND-SIAD, Management de l'information et de la décision
- Master Operational Research EngineeringUSTHB Alger2021Master Ingénierie Recherche Opérationnelle