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Junior Data Engineer

Barcelona💼 Full-time🗓 2026-06-26 → 2026-09-23

Core

Build robust real-time data pipelines and features for an ad-tech platform processing millions of requests per second to support Machine Learning models.

Role type

Junior Data Engineer

Builds

Real-time data ingestion services and features for the bidding platform

Domain

Ad-tech / Real-time data processing

Deliverable

production ML models

Required skills

SQL, Python, Java, Big Data concepts, Data pipeline design

Preferred skills

Scala, Redis, Memcached, AWS, Airflow, Spark

Technologies

Python, Scala, bash, Spark, MySQL, Redis, AWS, Jenkins, Docker, Airflow, Git, Jira, Notion

Responsibilities

Design and implement data features for ML models, write clean and testable code, monitor deployments for stability and performance, participate in code reviews and architectural decisions

Seniority

Junior, hands-on IC

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