About the role

We’re on a mission to build cutting‑edge advertising technology that empowers businesses to run sustainable and highly‑profitable campaigns. The Ad Performance team owns server technologies, data, and cloud services aimed at improving the ad experience. We’re looking for seasoned engineers with a background in machine learning to aid in this mission. Examples of problems include improving ad relevance, inferring demographics, yield optimisation, and many more. Employees in this role are expected to apply knowledge of experimental methodologies, statistics, optimisation, probability theory, and machine learning using both general purpose software and statistical languages.

What you’ll be doing

• Help build a first‑class machine learning platform from the ground up, managing the entire model lifecycle—feature engineering, model training, versioning, deployment, online serving/evaluation, and monitoring prediction quality.
• App...