Senior Data Scientist (m/f/d)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Data Scientist (m/f/d) based in Spain.

• This role offers the opportunity to build and improve machine-learning products operating at exceptional scale within the digital advertising ecosystem.
• You will work with large, complex datasets and models processing billions of ad requests and users in real time.
• The position spans the full data science lifecycle, from research and experimentation through production deployment and continuous optimization.
• You will collaborate closely with data scientists, analysts, and machine learning engineers to develop scalable solutions with measurable business impact.
• Your work will directly contribute to improving product performance, customer outcomes, and the efficiency of programmatic advertising systems.
• The environment is international, highly collaborative, experimentation-driven, and focused on solving complex problems with practical machine learning.
• This is an opportunity for an experienced data scientist to work on challenging problems while having meaningful technical and commercial impact.