Senior Machine Learning Engineer - Platform Team

SumUp is hiring a Senior Machine Learning Engineer for its Machine Learning Platform team in Berlin to build the foundational tools every data scientist at the company relies on, from feature engineering and model training through experimentation, monitoring, and serving. The role tackles the bottleneck that makes taking a model from idea to production take months, directly affecting fraud detection, lending, and other business-critical models. It involves designing ML platform tooling, simplifying feature creation, standardising fragmented infrastructure into scalable self-service components, and partnering closely with data scientists. The engineer also mentors data scientists and collaborates with the Data Platform teams to keep ML work aligned with wider data engineering.