Senior Machine Learning Engineer, Menu PersonalizationActive

Work with HelloFresh in Warsaw and its HelloTech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food…

What they're looking for

• + years of experience building and operating production ML systems.
• Production experience with recommender systems or large-scale personalization is a strong plus.
• Fluency across the data and ML stack (Python, Spark) and working knowledge of: the backend and platform stack (Go, Kafka, Kubernetes), with hands-on experience across pipelines, model serving, and observability at scale.
• Statistical literacy to design honest experiments and the judgment to evaluate model metrics accurately.