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Senior ML Engineer, Retail Media (m/f/d)

Cologne, de💼 Full-time🗓 2026-09-21 → 2026-09-26

Core

Design, build, and operate production-grade machine learning systems for retail media use cases including sponsored product ranking, audience segmentation, campaign optimization, attribution, and performance measurement.

Role type

Senior IC machine learning engineer (retail media)

Builds

Production ML systems for retail media advertising experiences

Domain

Retail media / E-commerce / Advertising

Deliverable

production ML models

Required skills

Machine learning engineering, software engineering, production ML system design, feature engineering, model deployment and monitoring, data pipeline development, retail media or recommender systems experience, handling complex data and ML failure modes

Preferred skills

Experience in early-stage product environments, translating business requirements to scalable solutions

Technologies

Cloud-based stack

Responsibilities

Design and build ML systems for ranking, segmentation, and optimization; develop robust ML pipelines for training and evaluation; bring models into production and ensure reliability; collaborate with product managers and engineers; communicate technical decisions to stakeholders

Seniority

Senior, hands-on IC

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