Mahmoud T. - Data Scientist

Go to Website

Sfax, Tunisia

Experience

Feb 2024 - Present

1 year 9 months

Data Scientist

Sofrecom Tunisia, part of Orange Group

Developed automated PDF audit information extraction system using GPT-4
Implemented multi-page PDF processing with image conversion
Built robust validation system for extracted data
Designed modular Python architecture for scalable processing
Created custom data validation using Pydantic models
Built automated JSON output generation
Implemented PDF to image conversion with optimized resolution
Applied Base64 encoding for LLM compatibility
Performed structured data validation and normalization
Developed FTTH access orders forecast with 12-month horizon and multi-dimensional predictions
Created comprehensive feature engineering pipeline and used advanced time series decomposition techniques
Implemented ensemble modeling with R’s feasts and fable achieving ~5% RMSE
Migrated forecasting solution to Dataiku and converted R code into production-ready flow zones
Validated performance using Dataiku’s native models
Optimized co-financing prediction model by converting Python scripts to Dataiku workflows
Prioritized SQL and native Dataiku components for performance
Designed efficient Analytics Base Table creation process
Validated MLForecast function and tested additional predictive variables
Evaluated alternative modeling approaches and confirmed solution robustness through comparative analysis

Feb 2022 - Dec 2022

11 months

Parttime Statistics Lecturer

International School of Business

Mar 2021 - Feb 2023

2 years

Data Scientist

Kiota Intelligence

Built predictive models for startup survival, Series A funding probability, and pre-valuation modeling
Developed investor-startup matching algorithm
Created interactive Shiny dashboard for funding visualization with dynamic filtering tools
Developed multidimensional outlier detection system and temporal clustering analysis
Designed CSS-styled RMarkdown automated reports and implemented email distribution system
Developed statistical testing framework for funding rounds and interactive filtering for investor matching

Aug 2019 - Jan 2021

1 year 6 months

Machine Learning Competitor (R programmer)

Zindi platform for Data Science

Ranked 4th in A14D Predict the Global Spread of COVID-19 time series competition
Placed in top 11% for Uber Movement SANRAL Cape Town road incident prediction
Ranked 6th in AI Hackathon Tunisia for fraud detection solution
Achieved top 36% in Tech4MentalHealth NLP classification for mental health chatbot
Ranked top 26% in Sendy Logistics ETA prediction for motorbike deliveries
Achieved top 13% in Financial Inclusion in Africa bank account usage prediction
Participated in IEEE Big Data Cup for customer support escalation prediction
Ranked top 31% in Uber Nairobi Ambulance Perambulation optimization
Ranked top 37% in Wazihub soil moisture prediction using IoT sensor data
Ranked top 38% in female-headed households wage prediction in South Africa
Ranked top 45% in Akeed restaurant recommendation engine for Oman
Ranked top 53% in UNICEF Flood Prediction in Malawi competition
Ranked top 52% in South African COVID-19 vulnerability mapping
Ranked top 59% in Sea Turtle Rescue weekly forecast challenge

Nov 2018 - Jan 2020

1 year 3 months

Data Scientist (R programmer)

Freelance

Designed comprehensive machine learning curriculum and hands-on labs
Created Python notebooks for supervised (linear/logistic regression, SVM, decision trees) and unsupervised learning (K-means)
Developed model optimization techniques and best practices in ML implementation
Built NLP classification system with scalable text classification model and automated category prediction pipeline
Created framework for future data classification
Developed IoT sensor analytics weight prediction model and optimized error reduction algorithms
Built social media analytics platform with Facebook API integration, sentiment analysis, and actionable insights

Jan 2018 - Mar 2020

2 years 3 months

Data Scientist

Tunisia Telecom Group

Constructed Analytics Base Table from multiple data sources with robust data quality checks
Executed advanced feature engineering and transformations
Performed statistical testing and correlation analysis
Developed K-means clustering model for behavioral segmentation and detailed segment profiles
Designed automated classification system for new customer assignment
Delivered actionable customer insights for business strategy
Developed and validated hypotheses for dual-SIM usage patterns
Engineered customer scoring algorithm and detailed user profiles using SAS Guide and Miner
Distinguished household-level connections and identified extended family networks
Collaborated with SAS, KPMG, and Business&Decision experts on churn, cross-sell, and community link analysis models

Jun 2016 - Dec 2017

1 year 7 months

Data Analyst

Tunisia Telecom Group

Developed SQL ad-hoc requests and dashboards for CVM performance, network quality KPIs, data service penetration, and sales analytics
Implemented VBA automation for PowerPoint reporting and established data quality verification protocols
Designed targeted marketing campaigns and Try & Buy offer frameworks
Generated data-driven product recommendations

Jun 2015 - Dec 2015

7 months

Toulouse, France

Research Statistician

LAAS-CNRS

Developed behavioral pattern recognition model for homeowner identification
Created real-time intrusion detection algorithm and automated alarm management system
Designed real-time data processing pipeline and statistical learning models for behavior analysis
Built automated decision-making system
Authored research book "Gestion Automatique d'un Système de Sécurisation des Biens à Domicile" published by European University Editions
Ranked 1st in IBM Watson Services competition and led AI labs as instructor

Summary

Data Scientist with over 9 years of experience, blending technical precision with strategic insight. I specialize in working with business-driven data, applying deep analytical thinking and iterative exploration to uncover meaningful patterns. My passion lies in transforming raw data into high-impact features, enabling models that align closely with real-world objectives and decision-making.

Languages

Arabic

Native

English

Advanced

French

Advanced

Education

Oct 2011 - Jun 2015

ESSAI

Engineering School · Statistics and Data Analysis

Oct 2008 - Jun 2011

IPEIS

Mathematics- Physics · Sfax, Tunisia

High School

High School degree · Computer Sciences

Certifications & licenses

Advanced R Programming

Coursera (from The Johns Hopkins University)

Creating Features For Time Series Data

Coursera (from SAS)

Practical Time Series Analysis

Coursera (from The State University Of New York)

Data Analyst In R Path

DataQuest

Forecasting Product Demand In R

DataCamp Courses

Statistical Learning (Using R)

Stanford Online

Time Series With R Track (6 Courses)

DataCamp Courses

Applied Data Science With R - Level 2

IBM Badges

Machine Learning By Andrew Ng

Stanford Online

Predictive Modeling And Text Mining

SAS Badges

Exploratory Data Analysis

SAS Badges

Data Analyst Track

Udacity

Build Your Own Chatbot - Level 1

IBM Badges

Node-Red Basics To Bots

IBM Badges

SAS Programming 1: Essentials

SAS Badges

Data Science Orientation

Coursera (from IBM)

Introduction To Anova, Regression And Logistic Regression

SAS Badges

Mining Massive Datasets (Big-Data Algorithms)

Stanford Online

Analyzing And Visualizing Data With Excel

edX

Inferential And Predictive Statistics For Business

Coursera (from Illinois University)

Text Mining And Analytics

Coursera (from Illinois University)

Cluster Analysis In Data Mining

Coursera (from Illinois University)

SQL

Stanford Online

Data Science: Data To Insights

MIT Professional X

Managing Big Data With MySQL And TERADATA

Coursera (from Duke University)

Querying With Transact-SQL

edX (from Microsoft)

Statistics With R: Correlation And Linear Regression

DataCamp Courses

Introduction To Python For Data Science

edX (from Microsoft)

Need a freelancer? Find your match in seconds.

Try FRATCH GPT

Similar Freelancers

Discover other experts with similar qualifications and experience

Philipp G.

Quantitative modeling and model development, statistical data analysis, reporting

View Profile

Friedbert W.

Data Analyst / Business Analyst

View Profile

Gabriel F.

Sr. Data Science

View Profile

Mathew D.

Data Science Expert and AI Strategist

View Profile

Jens D.

Product Owner & Senior Data Scientist

View Profile