Mahmoud Trigui-Data Scientist
Check rate
Experience
Data Scientist
Sofrecom Tunisia (Orange Group)
- Developed 12-month and 52-week forecasting system for multiple independent time series to support budget, resource, and staffing planning
- Built a semi-automated forecasting framework in Python using MLforecast library
- Designed a three-step optimization process: optimal lag selection, feature variable identification, and model and hyperparameter tuning
- Implemented comprehensive feature engineering including date-based variables and seasonality/trend/periodicity components
- Applied target transformation functions and developed an ensemble modeling approach for result smoothing
- Created automated pipelines for handling multiple independent series at different granularities
- Presented forecast results via interactive dashboards and facilitated data-driven decision making through PowerBI and LookerStudio
- Developed an automated PDF audit information extraction system using GPT-4, with multi-page PDF processing, image conversion, Pydantic data validation, and JSON output generation
- Built an FTTH access orders forecast solution with R's feasts and fable, achieving ~5% RMSE and migrating to production on Dataiku
- Converted Python scripts to production-grade Dataiku workflows, designed efficient Analytics Base Table creation, and validated MLForecast effectiveness
Part-time Statistics Lecturer
International School of Business
Data Scientist
Kiota Intelligence
- Built predictive models in R for startup survival, Series A funding probability estimation, pre-valuation, and investor-startup matching
- Developed an interactive Shiny dashboard with dynamic filtering, multidimensional outlier detection, and temporal clustering analysis
- Designed CSS-styled RMarkdown reports and implemented an automated email distribution system
- Developed a statistical testing framework for funding rounds and an interactive filtering system for investor matching
Machine Learning Competitor
ZINDI platform for Data Science
- Participated in multiple competitions using R, achieving top rankings: 4th in global COVID-19 spread prediction, 11th percentile in Uber Movement SANRAL, 6th in AI Hackathon Tunisia, and top percentiles in Basic Needs Basic Rights Kenya, Sendy Logistics, Financial Inclusion in Africa, IEEE Big Data Cup, Uber Nairobi Ambulance Perambulation, Wazihub Soil Moisture Prediction, Female-Headed Households in South Africa, Akeed Restaurant Recommendation, UNICEF Flood Prediction, South African COVID-19 Vulnerability Map, and Sea Turtle Rescue
Data Scientist
Freelance
- Designed comprehensive machine learning curriculum and hands-on labs, including Python notebooks covering supervised and unsupervised algorithms and model optimization techniques
- Developed a scalable NLP classification system with automated category prediction pipeline and future data classification framework
- Built IoT sensor analytics solutions with high-precision weight prediction models and error reduction algorithms
- Created a social media analytics platform with Facebook API integration, sentiment analysis, and actionable strategic insights
Data Scientist
Tunisia Telecom Group
- Constructed Analytics Base Table from multiple data sources and implemented robust data quality checks
- Performed advanced feature engineering, statistical testing, and correlation analysis
- Developed K-means clustering model for behavioral segmentation and created detailed segment profiles
- Designed automated classification system for new customer assignment and delivered actionable customer insights
- Developed and validated multi-SIM user detection hypotheses, engineered customer scoring algorithms, and built detailed user profiles using SAS Guide and Miner
- Identified family communities and extended family networks through behavioral patterns and collaborated with SAS, KPMG, and Business&Decision experts on churn, cross-sell, and community link analysis models
Data Analyst
Tunisia Telecom Group
- Developed SQL ad-hoc requests and dashboards for customer value management performance, network quality KPIs, data service penetration, customer segmentation profiles, and sales analytics
- Implemented VBA automation for PowerPoint reporting and established data quality verification protocols
- Designed targeted marketing campaigns, Try & Buy offer frameworks, and generated data-driven product recommendations
Research Statistician
LAAS-CNRS
- Developed a behavioral pattern recognition model for homeowner identification and a real-time intrusion detection algorithm
- Implemented an automated alarm management system and designed a real-time data processing pipeline
- Built statistical learning models for behavior analysis and an automated decision-making system
- Authored research book "Automatic Management of a Home Property Security System" published by European University Editions
- Won IBM Watson Services competition, led AI labs, and trained participants in Watson Services
Industry Experience
See where this freelancer has spent most of their professional time.
Experienced in Telecommunication, Banking and Finance, Information Technology, Education, Media and Entertainment, and Government and Administration.
Business Area Experience
See which departments and functions this freelancer has contributed to most.
Experienced in Business Intelligence, Marketing, Research and Development, Product Development, Sales, and Operations.
Summary
Data Scientist with 9+ years of experience specializing in structured data analytics/machine learning, time series forecasting, and NLP solutions. With expertise in both R and Python ecosystems. I am particularly passionate about feature engineering and its crucial role in machine learning effectiveness.
Consistently expanding expertise through competitive programming and continuous learning from leading educational platforms. Combines technical proficiency with strong analytical thinking to deliver impactful data-driven solutions.
Skills
- Machine Learning
- Sql
- Time Series Forecasting
- Structured Tabular Data Analysis & Machine Learning Solutions
- Time Series Forecasting
- Clustering Algorithms
- Advanced Feature Engineering
- Nlp & Llm Implementations
Languages
Education
ESSAI, Higher School of Statistics and Data Analysis
Engineering degree, Statistics and Data Analysis · Statistics and Data Analysis · Tunis, Tunisia
IPEIS, Preparatory Institute for Engineering Studies
Mathematics-Physics · Sfax, Tunisia
15 November High School
Computer Sciences
Certifications & licenses
Advanced R Programming
Coursera
Creating Features For Time Series Data
Coursera
Practical Time Series Analysis
Coursera
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
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
Text Mining And Analytics
Coursera
Cluster Analysis In Data Mining
Coursera
SQL
Stanford Online
Data Science: Data To Insights
MIT Professional X
Managing Big Data With Mysql And Teradata
Coursera
Querying With Transact-Sql
edX
Statistics With R: Correlation And Linear Regression
DataCamp Courses
Introduction To Python For Data Science
edX
Statistics
Experience
Global Experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
Similar Freelancers
Discover other experts with similar qualifications and experience
Experts recently working on similar projects
Freelancers with hands-on experience in comparable project as a Data Scientist
Nearby freelancers
Professionals working in or nearby Sfax, Tunisia
