Lounge by Zalando (Berlin, Germany) is seeking a Senior ML Software Engineer to own and grow the machine-learning systems behind growth and lifecycle personalization. You will take the campaign-ordering personalization from one channel to many—starting with email via Braze—by building feature pipelines and training workflows, and deploying scalable batch inference. Collaborate with principal engineers, product managers, and partner data-science teams, and mentor mid-level and junior engineers to raise the bar for production readiness. This role requires hands-on experience with distributed data processing (Spark/Databricks), feature stores, and production-grade Python for ML systems, as you connect models to customer touchpoints and measure impact through rigorous A/B testing. You will contribute to AI-native tooling and experimentation, ensuring reliable, high-quality delivery in a remote-friendly but on-site environment. We value diversity and inclusion and support accommodations throughout the hiring process.

Lounge by Zalando (Berlin, Germany) is seeking a Senior ML Software Engineer to own and grow the machine-learning systems behind growth and lifecycle personalization. You will take the campaign-ordering personalization from one channel to many—starting with email via Braze—by building feature pipelines and training workflows, and deploying scalable batch inference. Collaborate with principal engineers, product managers, and partner data-science teams, and mentor mid-level and junior engineers to raise the bar for production readiness. This role requires hands-on experience with distributed data processing (Spark/Databricks), feature stores, and production-grade Python for ML systems, as you connect models to customer touchpoints and measure impact through rigorous A/B testing. You will contribute to AI-native tooling and experimentation, ensuring reliable, high-quality delivery in a remote-friendly but on-site environment. We value diversity and inclusion and support accommodations throughout the hiring process.