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Sammy El TakritiSE

Sammy El Takriti

Data Engineer & Data Analyst

€560/day
1 project
Berlin, DE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Sammy

  • Data Engineer and Data Analyst with over 10 years of experience in quantitative analysis and modeling in the fields of energy, emissions, and sustainability.
  • Experienced in building and analyzing structured datasets and developing analytical models for public and private organizations.
  • Currently focusing on applied data science, machine learning, and data engineering, with experience in building end-to-end Python pipelines and mentoring over 400 students in analytics and ML programs.
  • German

    Native or bilingual

  • English

    Native or bilingual

  • French

    Native or bilingual

  • Spanish

    Fluent

  • Italian

    Fluent

  • Portuguese

    Conversational

  • Arabic

    Basic

Can work on-site
Berlin (up to 40km)

Experience

  • Catalyst Institute for Creative Arts and Technology GmbH
    Data Engineering Pipeline with Python: ActiveCampaign API → BigQuery → Looker Studio
    EDUCATION AND E-LEARNING
    August 2025 - September 2025 (1 month)
    Berlin, Germany
    • Developed a Python pipeline to capture, clean, and loadActiveCampaignmarketing data intoBigQueryas automated time-series datasets for analysis.
    • Created aLooker Studiodashboard with Google Sheets integration for real-time self-service reporting.
    Python BigQuery Looker Studio ActiveCampaign SQL
  • Le Wagon
    Teacher in Data Science, Data Analytics and Data Engineering
    EDUCATION AND E-LEARNING
    January 2023 - Today (3 years and 5 months)
    Berlin, Germany
    • Teaching data science, data analytics, and data engineering topics.
    • Instructed over 400 students across more than 30 technical areas, including **data preprocessing**, **feature engineering**, **supervised learning**, and **model evaluation**.
    • Mentored students on end-to-end analytics and **machine learning projects**, ensuring proper use of modeling pipelines and best practices.
    Python Scikit-learn Machine learning Docker SQL
  • Self-hosted
    Linux Infrastructure and Secure Web Platform
    DIGITAL AND IT
    January 2025 - April 2025 (3 months)
    Berlin, Germany
    • Deployed and managed anArch Linuxproduction server with hardenednetwork**, **firewall**, **TLS**, and secure remote access, hosting a public **WordPressplatform.
    • ImplementedWireGuard**VPN**, backup, update, and monitoring routines to ensure secure and reliable operation of production services.
    Cloud Platforms and Infrastructure Linux WordPress Virtual Private Network (VPN) Apache HTTP Server

Reviews

5.0

Out of 1 rating

C

Christina

Catalyst Institute for Creative Arts and Technology GmbH

Reviewed on 10/7/2025

Working with Sammy was an outstanding experience. We faced a frustrating challenge: every week, we had to manually go through all the ActiveCampaign pipelines, transfer recruitment numbers into a spreadsheet, and try to track progress. It was repetitive, time-consuming, and prone to errors. Sammy, an absolute expert in his field, developed a fully automated pipeline visualization system for us. Today, we have dashboards with week-over-week comparisons and annual overviews that we can easily adapt for future recruitment cycles. What was once nearly impossible has now become simple, fast, and reliable. This was not an easy task – integrating ActiveCampaign data into Looker Studio via third parties was very complicated. Sammy went above and beyond the agreed scope, developing his own scripts to pull data directly from the ActiveCampaign API. Thanks to his persistence and creativity, we can now run the script ourselves every week, retrieve data in seconds, and easily compare it across weeks and years. What particularly distinguishes Sammy is not only his technical skill but also his teaching ability. Throughout the entire process, he explained every step and shared his knowledge, allowing me to learn an incredible amount myself. It's immediately clear that he is not just a brilliant data scientist but also a great teacher (no wonder, as he also teaches at Le Wagon). Sammy was resourceful, detail-oriented, and communicated clearly and transparently at all times. He far exceeded our expectations, making a complex CRM system understandable and usable for our team. We are thrilled with the result and look forward to working with him again on future data visualizations. If you are looking for an expert who combines deep technical knowledge with patience, creativity, and the heart of a teacher, Sammy is the right person.

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Education

  • Bootcamp in Data Science
    Le Wagon
    2022
    Teilnahme an einem 9-wöchigen Vollzeit-Intensiv-Coding-Bootcamp zum Erlernen von Data Science mit Python: - Maschinelles Lernen und Deep Learning mit scikit-learn, TensorFlow, pandas, NumPy, Matplotlib - Datenprodukte mit Google Cloud Platform, MLflow, FastAPI, Streamlit, SQL, BigQuery - Statistik mit SciPy, seaborn und statsmodels
  • MA and BA in Bioengineering, Environmental Sciences and Technologies
    Université Libre de Bruxelles
    2009
    Masterarbeit in analytischer Chemie: Untersuchung der oxidativen Eigenschaften eines atmosphärischen Plasmas

Skill set

Categories