Senior ML Engineer (m/f/d)

About your tasks:

- Work with colleagues from our Data & AI department and collaborate closely with product managers, engineers, and commercial stakeholders. - Design, build, and operate machine learning systems for retail media use cases such as sponsored product ranking, audience segmentation, campaign optimization, attribution, and performance measurement. - Translate business and product requirements into scalable ML solutions, balancing model quality, latency, reliability, scalability, and maintainability. - Develop robust ML pipelines for feature engineering, training, evaluation, deployment, monitoring, and continuous model improvement. - Bring models into production using our cloud-based stack and ensure they are reliable, observable, and maintainable over time. - Communicate technical decisions, assumptions, limitations, and uncertainty clearly to product, engineering, and business stakeholders. - Contribute to ML engineering standards, best practices, and knowledge sharing within the team.

About you:

- You have several years of hands-on experience as a Machine Learning Engineer, ML-focused Software Engineer, or Data Scientist with strong engineering experience. - You have built and operated production-grade machine learning systems, pipelines, or model-based products. - You have experience working with retail media, or alternatively recommender systems or ranking. - You are comfortable working with complex data and understand common ML failure modes such as data leakage, feedback loops, distribution shifts, and misleading offline metrics. - You enjoy working close to the business and can explain complex technical topics clearly to non-technical stakeholders. - You take ownership, work proactively, and are comfortable navigating ambiguity in an early-stage product environment. - You value collaboration, give and receive feedback openly, and enjoy helping others grow.

About your benefits:

In order to provide our employees with the best possible support for their individual needs, we offer a wide range of benefits:

- Sports: Stay healthy. Profit from a membership (M) package at Urban Sports Club, so that you can take advantage of a huge variety of sport offers. - Mental Health: Get quick and professional help from psychologists of Likeminded if you feel overwhelmed in private or professional life. Anonymous and free of charge. - Work from Home: If your job does not require you to be present in the office, we can arrange the place you work from individually - even for up to 20 days a year anywhere in the EU. - Mobility: We provide our employees with a fully costed Deutschland Ticket which can be used at any time. Click here to learn more. - Personal development: Grow! We support and encourage your individual development through various in- and external trainings. - And many more :)