Lead Machine Learning Engineer – Recommendation Systems

From the original posting

Poland GRAI is a social music app out of Warsaw, currently in alpha. We’re building new ways to listen and respond through music - focusing on the social, human interactions that only happen when people are connected on both ends. To make those connections truly resonant, we’re looking for a Lead Machine Learning Engineer to architect, build, and scale our recommendation and discovery engines. You’ll own the technical roadmap for our RecSys stack, transforming raw user behavior and social signals into deeply personalized, real-time experiences. WHAT YOU’LL DO - Technical Leadership: Define…