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fifty-five

Lead Data Scientist

fifty-five

Data Science Lead in a hybrid work environment, overseeing a Data Science team for innovative data-driven marketing solutions. Collaborating closely with Data Engineers and Analysts to enhance project outcomes.

Posted 5/11/2026full-timeParis • 🇫🇷 FranceSeniorWebsite

Tech Stack

Tools & technologies
AWSCloudGoogle Cloud PlatformPythonSQL

About the role

Key responsibilities & impact
  • Operational management of a team of Data Scientists to deliver projects on time with a high level of quality, ensuring client satisfaction
  • Developing Data Science service offerings for our clients
  • Scientific monitoring to drive innovation in our daily projects
  • Supporting the upskilling of consultants in France
  • Developing solutions for our clients (scoring models, time series, attribution, coaching, etc.)

Requirements

What you’ll need
  • Graduate of a top school in statistics / econometrics / machine learning, with at least 4 to 5 years of experience
  • Strong knowledge of machine learning
  • Full command of Python and SQL and the main machine learning libraries
  • Experience with MMMs (modeling, interpreting results)
  • Proficiency with major web analytics tools
  • Analytical mindset, rigor and proactivity
  • Proficiency in English
  • Knowledge of cloud solutions GCP and/or AWS is a plus

Benefits

Comp & perks
  • 200 employees in Paris and more than 320 worldwide
  • A multicultural environment with over 20 different nationalities
  • Internal values centered on excellence, kindness and sharing
  • A one-week onboarding common to all our Nifties and ongoing (recognized) training on the digital ecosystem and technologies
  • Responsible and evolving assignments designed to maximize skills development
  • Edenred+ meal card of €10 per day, reimbursed at 50%
  • 50% coverage of your transportation costs (Navigo, bike, etc.)
  • Strong emphasis on work-life balance with respect for the right to disconnect
  • A flexible remote work policy

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
machine learningPythonSQLMMMweb analytics toolsscoring modelstime seriesattribution
Soft Skills
analytical mindsetrigorproactivity