Data Scientist Senior - AI Marketplace Platform

mirakllabs • Paris, France • Bordeaux, France

No Relocation

Posted: April 3, 2026

Job Description

About the job

As part of our Data team (60+ people), your main mission will be to prototype, iterate, and put algorithms into production in collaboration with the Product teams, Data Engineers, and Development teams.

The topics you will be working on will have a real impact on 450+ of the world's largest retailers (Best Buy, Decathlon, Leroy Merlin, Macy's, etc.) and 100k+ sellers. The goal is to make the most of our rich and varied data in order to increase their revenue, optimize the operational management of their businesses, and ensure the security of users and transactions.

We are looking for someone on a permanent contract, based in Paris or Bordeaux (1 day remote per week).

Here are some of the current and future topics the team is working on:

Detecting anomalies in product prices
Analyzing sentiment in seller/consumer exchanges to prioritize critical messages
Estimating package delivery times
Predicting and anticipating stock shortages
Detecting anomalies in seller behavior
Developing AI agents to help sellers take action on their businesses

This job offers you:

Implementing algorithms that will have a visible impact on more than 500 e-commerce sites/marketplaces in 40 countries, some of which are very large (millions of products, customers, orders per year)
A wide variety of techniques (time series, heuristics, deep learning, NLP, LLM, etc.).
Real autonomy and responsibility in the projects you own

Our stack and tools:
Python, Tensorflow, Keras, Pytorch, Databricks, Spark, AWS (Amazon Redshift, s3, etc.), SQL, Airflow, Delta Lake

On a daily basis, you will:

Analyze and prepare data, prototype algorithms
Put them into production in collaboration with Data Engineers and development teams
Create dashboards to illustrate the relevance of algorithms and monitor production
Present results at weekly data science meetings and participate in team brainstorming sessions
Liaise with other teams to refine use cases, user experience, and integration methods

You will enjoy this job if:

You have a background in machine learning, mathematics, computer science (or a related field)
You already have 6-8 years of experience in a similar position
You have significant experience in applied ML in a business setting
You have a good knowledge of machine learning and deep learning algorithms (particularly state-of-the-art architectures, such as Transformers)
You are proficient in Python, Tensorflow, and/or PyTorch.
You are pragmatic, data-driven, and business-oriented with good team spirit.
You like to take ownership of your projects and are curious.
You have a positive attitude: respect and kindness are part of your values.

Want to join us? ⭐

A 30-minute phone call with one of our Tech recruiters. This will be an opportunity to discuss your background and expectations, and to find out what Mirakl can offer you in return.
An initial 30-minute technical discussion via Zoom with a member of the Data Science team, which will allow you to delve into the more specific aspects of your expertise and discover how your skills can be integrated into our projects.
A practical case study to complete at home.
A 75-minute technical review and discussion with a manager from the Data Science team.
A final 1-hour Zoom meeting with future Mirakl colleagues to discuss our values and corporate culture.

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