You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Dan SerrafDS

Dan Serraf

Data scientist

€650/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Dan

Passionate and skilled Data Scientist, I implement advanced data analysis methodologies to extract meaningful insights. With a solid background in the field, I am proficient in data exploration, statistical modeling, and the implementation of machine learning algorithms. My goal is to bring in-depth data science expertise to solve complex problems and provide effective solutions to clients. Ready to take on new challenges and contribute to the success of data-driven projects.
  • French

    Native or bilingual

  • English

    Conversational

Can work on-site
Paris (up to 50km)

Experience

  • Société Générale - CIB
    Data scientist
    BANKING AND INSURANCE
    April 2024 - Today (2 years and 4 months)
    Within the CAO/CBI entity of the accounting and recovery department of SGSS, I work in a transversal team dedicated to solving complex business problems and optimizing processes at the department level. My role combines data analysis, the integration of artificial intelligence solutions, and the improvement of operational efficiency, in close collaboration with business departments.

    Main missions:
    • Data preparation & modeling:
    • Cleaning, structuring, and modeling data for anomaly detection in large volumes.
    • Implementing predictive models and monitoring tools to ensure the quality and consistency of data flows.

    • Audit & compliance:
    • Closing internal audit recommendations by developing a model to detect potentially unused data in client billing.

    • Data visualization & business steering:
    • Conducting workshops with business value chains to define relevant KPIs.
    • Creating custom dashboards aligned with operational and strategic objectives.

    • Data mapping & governance:
    • Carrying out an exhaustive mapping of data flows and sources within the accounting/recovery scope.
    • Actively participating in data governance in coordination with the different departments of the business unit.

    • Innovation & AI tools:
    • Beta tester for artificial intelligence solutions, notably through the use of AI copilots (prompt engineering) to improve low added-value tasks.

    • Process automation:
    • Automating and consolidating rejection files to simplify analysis and reduce manual intervention.
    • Developing scripts and tools to accelerate decision-making and ensure operational reliability.
    Python Microsoft Power BI Alteryx Microsoft Excel SQL
  • Le Petit Patron
    Data Scientist
    E-COMMERCE
    September 2023 - March 2024 (6 months)
    Meaux, France
    Using SQL and Python to model and prepare sales and product data from multiple marketplaces.
    • Optimizing prices on Amazon Seller and Vendor to increase product visibility and develop marketing strategies.
    • Analyzing inventory and forecasting sales with Python (Numpy, Matplotlib, Pandas, Scikit-learn) to minimize stockouts and optimize procurement.
    • Creating interactive dashboards via Shippingbo to monitor performance and facilitate decision-making.
    • Reorganizing warehouses based on annual sales to improve operational efficiency.
    • Developing an algorithm to automatically determine optimal package dimensions.
    Python Microsoft Excel Microsoft Power BI
  • Société Générale - CIB
    Data scientist
    BANKING AND INSURANCE
    February 2023 - August 2023 (6 months)
    Puteaux, France
    Collecting, modeling, and validating customer requests and complaints using statistical tests with SQL and Python.
    • Analyzing millions of customer data points to increase customer proactivity, identify recurring issues, and create dashboards.
    • Implementing an automated processing pipeline for analyzing thousands of emails using statistical learning (BART, MPNet, Spectral Clustering) in Python, providing teams with a significant time-saving tool.
    • Automating the compilation of customer statistics on Société Générale's post-trade platform, via Python scripts initially developed in Excel.
    Python SQL

Recommendations

Be the first to recommend Dan

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Skill set

Categories