Machine Learning Engineer (Personalization)

Dow Jones

📍 barcelona, kingdom of spain, Spain

Full-time Engineering Posted June 17, 2026

Job Description

Requirements
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3+ years of industry experience applying machine learning methods, with a strong focus on recommender systems, search, ranking, or personalization
Strong proficiency in Python for production ML systems
Experience with A/B testing and experimentation frameworks to measure model impact
Familiarity with cloud platforms (AWS, GCP, or Azure) and containerized environments
Familiarity with SQL and NoSQL databases
Degree in computer science, machine learning, statistics, or equivalent work experience
What the job involves
We are looking for a Senior Machine Learning Engineer to join our Personalization team in Barcelona
You will design and build systems that deliver highly relevant, personalized experiences across our digital products
This role sits at the intersection of backend engineering, data, and applie...