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Job Description

The location is based in Paris with up to 4 days of home-working by week (no full remote)

You like working in a team, you value people and you are highly motivated to join an innovative and dynamic company where you can propose your ideas and put them into practice: we want to meet you !

We are looking for a (Senior) Machine Learning Engineer to join our central Data Science team and help support Leboncoin's growth and more broadly Adevinta's by providing ML solutions to its various teams and thus help our millions of users.

As a ML Engineer, you will :

  • Use the amount of data we have to solve various business issues (segmentation, advertising optimization, forecasting, fraud, etc.)

  • Be in charge of the entire ML product lifecycle (data preparation, training, deployment, monitoring, serving, etc.)

Our Central Data Science Team consists of 8 other experienced Data Scientists / ML Engineers (5+ years experience) and is led by a Product Owner and an Engineering Manager. All the team will support you on the data tech stack and help you progress quickly

The Central Data Science Team is located within the Machine Learning Tribe which consists of teams creating business agnostic image models and has enablement teams producing business use cases for teams without data scientists / machine learning engineers.

Why Join Us :

  • Use a state-of-the-art tech environment including MLFlow, Kubeflow, JupyterHub, Spark, AWS, Kubernetes

  • Use advanced data science techniques and frameworks

  • Impact millions of users by developing scalable ML products

  • Explore a huge amount of data (hundreds of thousands of ads daily, over 1 petabyte of data)

  • Join a strong Data community and Data Science Guild

  • Participate in ML conferences

  • Great work environment (Paris office, Great Place to Work certified)

  • A big focus lately on GenAI

Your Missions:

  • Gather, analyze and understand business needs from product and cross-functional teams

  • Participate in framing studies before project launches

  • Develop scalable predictive models meeting identified needs

  • Deploy models to production to serve millions of users

  • Define metrics and monitor model performance

  • Manage models and services end-to-end

  • Present to business teams and participate in demos. Ensure follow-up with business teams

  • Perform code reviews and share best practices

  • Conduct research to improve team knowledge

  • Ensure good data practices across teams

Your Profile:

  • 3+ years experience as a ML Engineer

  • Software engineering / Data Science / ML background

  • Advanced Python and experience with ML frameworks

  • Knowledge of ML theory and models

  • Experience deploying models to production

  • Analytical mindset and ability to translate business issues into data science solutions

  • Strong communication skills and teamwork

Additional Information: The list of technologies and methodologies is for illustrative purposes. We understand that not everyone can possess all the skills and know the entire required stack from day one. If you are passionate about data and motivated to develop your skills, we encourage you to apply.

The Steps:

  • 1st phone call with Gregory (Recruiter) to understand your career plan and answer questions

  • 1 technical test done at home to assess ability to approach a data science project

  • 1 on-site interview with 2 Data Scientists to understand your test solution, assess ability to apprehend a new use case and test technical knowledge

  • 1 interview with Elisa (Manager) and 1 Data Science team member to align on expectations and ability to work together

After each step, Gregory will contact you to collect your impressions and determine if the step was conclusive.


Life at Adevinta comes with its perks! Our Adevintans enjoy the following benefits:

  • An attractive Base Salary.
  • Participation in our Short Term Incentive plan (annual bonus).
  • Employee Stock Purchase Program with a match from Adevinta.
  • Work From Anywhere: Enjoy up to 20 days a year of working from anywhere! Maybe not from the moon - well why not! just make sure you have internet connection!
  • A 24/7 Employee Assistance Program for you and your family, because we care.
  • Win together, lose together is one of our key behaviours. At Adevinta you will find a collaborative environment with an opportunity to explore your potential and grow.

On top of these, we also provide a range of locally relevant benefits. Wanna know more? Apply and ask our recruiters!


Machine Learning Engineer (N/H/F) | Adevinta Spain
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