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

Jany Lahlouh

Senior Data Scientist

€700/day
Bordeaux, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Jany

Main Propositions:

1. Marketing Performance Analysis – Media Mix Modeling (MMM)

Do you really know which marketing levers generate your revenue?
Are you able to measure the real contribution of your channels (online and offline) and simulate the impact of your budget decisions on your sales?
Media Mix Modeling answers these questions precisely.

What I offer:
- Audit and data qualification (media, sales, exogenous factors) and business objective definition
- MMM modeling to measure the contribution and ROI of each lever
- Clear and actionable reporting: insights, budget recommendations, simulation scenarios
- Long-term support: monthly or weekly monitoring and model updates if desired

2. Price Elasticity Analysis & Pricing Strategy

Do you know how a price change actually impacts your sales volume and revenue?
Are you able to anticipate the effect of a price increase or promotion before deploying it?

Price elasticity analysis allows for quantitative-based pricing decisions, taking into account volume, seasonality, and market context effects.

What I offer:
- Audit & modeling of price/sales data to understand price sensitivity
- Scenarios and recommendations to optimize prices, promotions, and margins
- Monitoring and recalibration for continuous and reliable pricing decisions

About me

Passionate and experienced Data Scientist with production applications in both explanatory and predictive subjects. My areas of expertise today are time seriesforecasting(sales, demand, stock...), as well aseconometricsand more specifically **Marketing Mix Modeling**.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Bordeaux (up to 50km), Toulouse (up to 10km), Paris (up to 10km)

Experience

  • Conseil
    Senior Data Scientist
    RETAIL (SMALL BUSINESS)
    September 2025 - Today (9 months)
    Paris, France
    • - Retail: Scaling up daily sales forecasting and model monitoring. Exploring the capabilities of LLM for industrial forecasting. Over 180,000 series are automatically forecasted every day.
    Machine learning Forecasting Data science LLM MLOps
  • Conseil
    Data Scientist
    November 2023 - December 2025 (2 years and 1 month)
    Paris, France
    - Retail: Won a hackathon against 4 firms, leading to a partnership, starting with a multi-product and multi-site sales forecasting project. Implementation and structuring of the data science/ML project and workflow for a full team. Modeling involving in-depth data exploration (e.g., cannibalization), advanced feature engineering, various models (GBDT, RNN, TCN, CHRONOS/LoRa), and deployment for daily predictions. Project carried out on Databricks. Support for less experienced data scientists.

    - Internal: Ideation and implementation of an internal Python ML library adapted to recurrent challenges faced by teams.

    - TV: Development of a dynamic pricing formula (GRP).

    - Retail: Price elasticity study in a mass-market retail context aiming to prepare for a dynamic pricing project.

    - Medical: 3D radio image segmentation (dicom) using deep learning, implementation of a UNET-R challenged by totalsegmentator. Docker deployment.

    - Agriculture: Prediction of heat and calving periods for cows from multivariate time series, involving advanced feature engineering, gradient boosting, and recurrent deep learning models, followed by AZURE deployment.
    Data science Machine learning MLOps Econometrics Computer Vision
  • Ministère des Armées
    Data Scientist
    September 2022 - September 2023 (1 year)
    Rennes, France
    Within a Deep Learning R&D team, I had the opportunity to work on a computer vision problem: Detection, Recognition, and Identification using self-supervised learning and active learning.

Recommendations

Be the first to recommend Jany

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

Education

  • Certified Machine Learning Engineer Professional
    Databricks
    2025
  • Certified Machine Learning Engineer Professional
    Google Cloud
    2025
    Certified Machine Learning Enginneer Professional

Skill set

Categories