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Thiago LefebureTL

Thiago Lefebure

Data & AI Trainer - Python | SQL

€400/day
Lille, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Thiago

Passionate about data analysis, I am a Freelance Data Analyst with solid experience in leveraging data to generate strategic insights and help companies optimize their performance. My goal is to transform raw data into actionable information to improve decision-making.

➕ My Strengths
🎓 Environmental Engineer / QHS / Data Analyst at DataScientest - Mines ParisTech
📄 Numerous data certifications in hand (Google Data Analytics Certificate, Google Analytics 4...)
💼 Diverse experiences (large groups, startups, e-commerce)
❤️ But above all, a passion for the data analyst profession

📈 Data analysis use cases I handle
Activity steering dashboards
Sales forecasting
Customer knowledge
Performance analysis
Marketing campaign analysis
Sentiment analysis
Pricing

And other use cases depending on your needs!

👨‍💻 My expertise as a Data Analyst
Data collection, processing, and cleaning (ETL)
Exploratory data analysis
Data Visualization
Definition of Key Performance Indicators (KPIs)
Business intelligence (Creation of interactive dashboards)
Machine learning (clustering algorithms, regression algorithms, NLP, scoring...)
Web analytics / Digital analytics
Data analysis reporting

⚙️ My Data Analyst toolkit
Tableau
Microsoft Power BI: Power Query, DAX
SQL: PostgreSQL, MySQL
Python: Pandas, Numpy, Scikit-learn, Seaborn, Matplotlib
Microsoft Excel: Pivot tables, Vlookup, dashboards

✅ If you are interested
I respond in less than 1 hour, when shall we discuss it? ➡️
  • French

    Native or bilingual

  • English

    Fluent

  • Portuguese

    Native or bilingual

Can work on-site
Lille (up to 50km), Dunkerque (up to 50km), Arras (up to 50km), Paris (up to 50km), Bruxelles (up to 50km)

Experience

  • Ecole IT
    Trainer
    EDUCATION AND E-LEARNING
    December 2025 - Today (6 months)
    Valenciennes, France
    Trainer at École IT, I support students in performance, quality, and leadership-oriented courses:

    ✔ Advanced BigData with Pytorch
    ✔ IT Service Quality (QoS)
    ✔ BPMN Modeling & Software Patterns
    ✔ Project management, leadership, and agile methods
    ✔ Team and intensive project management
    ✔ Python Machine Learning with Pandas, Numpy, Matplotlib, and Scikit-learn
    ✔ Introduction to BigData and Data Science - Soft Skills
    ✔ Python Spark and advanced AI projects

    📌 Campuses in Valenciennes, Amiens, and Brussels.
    Data Analysis: SQL, Python (Pandas, NumPy), Advanced Excel; Pandas Automation & Reporting: Power Query, VBA, Python Scikit-learn
  • Liora
    Trainer
    EDUCATION AND E-LEARNING
    October 2025 - Today (8 months)
    Speaker for the TechAway project — an innovative educational program by OMNES Education group (INSEEC, ESCE Grande École, Sup de Pub, ECE, etc.) aimed at training all students in key Tech skills.

    💡 Topics taught:

    ✔ Data Analysis (Python - Pandas, NumPy)

    ✔ SQL and databases
    ✔ Data visualization (Power BI and Looker)
    ✔ Programming for Data Science
    ✔ Artificial Intelligence & Generative AI (AI / GenAI)
    ✔ Tech For All: Fundamentals of Data, AI, and Cybersecurity

    🌍 Bilingual sessions (French / English)
    Pandas Data Analysis: SQL, Python (Pandas, NumPy), Advanced Excel; Microsoft Power BI Tableau Dashboard
  • Freelance
    Data Analyst - Expertise in Data Analysis & Decision Support Solutions
    May 2023 - Today (3 years and 1 month)
    Lille, France
    As a Freelance Data Analyst, I leverage my skills in data analysis, interactive visualization, and predictive modeling to help companies transform their data into strategic assets. My approach is to provide solutions based on reliable and actionable data, while facilitating business decision-making through powerful tools.

    My key skills include:

    🔹 Exploratory Data Analysis – In-depth exploration of complex datasets, trend identification, and insight generation to guide business strategies.

    🔹 Data Visualization and Dashboard Creation – Design of dynamic and interactive dashboards on Power BI, Tableau, or with Python (Plotly, Seaborn), enabling teams to track KPIs in real-time and optimize their performance.

    🔹 SQL & Process Automation – Development of complex SQL queries for analyzing large volumes of data, performance optimization, and implementation of data flow automation solutions.

    🔹 Predictive Modeling & Machine Learning – Creation of classification and regression models to anticipate market trends, optimize internal processes, and simulate different business scenarios.

    🔹 Results Communication & Reporting – Clear and pedagogical presentation of results to stakeholders, simplifying technical aspects to facilitate understanding of strategic issues.

    Why choose me?

    With several months of freelance experience, I have worked autonomously and rigorously on complex projects, providing solutions based on precise data. I am ready to commit to various missions, ranging from data analysis to the implementation of predictive models, to optimize performance and support business growth.
    Data analyst Data Analysis: SQL, Python (Pandas, NumPy), Advanced Excel; PowerBI Machine learning

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Education

  • Data Analyst
    DataScientest - MINES Paris Executive Education
    2023
    Formation en format bootcamp, couvrant tous les aspects de l'analyse de données, y compris la collecte, le nettoyage, le traitement et l'analyse des données, ainsi que le développement de modèles de machine learning pour des analyses prédictives avancées.
  • Master Quality Health Safety Environment
    Université de Lille
    2019

Skill set

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