Senior Machine Learning Engineer, Policy & Safety

This role is based in London or Stockholm.

What you'll do:

• Design, build, and ship production-grade machine learning systems that power content safety and policy enforcement at Spotify scale.
• Own and lead key technical initiatives across detection, classification, and policy evaluation systems.
• Develop and maintain ML models for content moderation, including multimodal and LLM-based systems.
• Drive experimentation to improve model performance, reliability, and fairness in safety-critical systems.

Who you are:

• You have solid experience building and deploying machine learning systems in production environments at scale.
• You are experienced with training, evaluating, and maintaining ML models using modern frameworks such as PyTorch.
• You have experience with distributed systems or backend technologies (e.g., Scala).