Senior Machine Learning Engineer, Search

Roku is seeking a Senior Machine Learning Tech Lead to drive the development of next-generation AI-powered discovery experiences for their entertainment assistant. This role involves leading the creation of large-scale ML systems focused on ranking, personalization, and conversational interactions to enhance user engagement, retention, and monetization across Roku's platform.

• Lead technical vision and roadmap for ranking, personalization, and recommendation systems
• Develop and deploy state-of-the-art ML models using deep learning, LLMs, and reinforcement learning
• Build multi-objective optimization systems balancing engagement, retention, relevance, and monetization
• Drive innovation in conversational discovery and personalized content experiences
• Architect scalable ML systems and data pipelines
• Mentor engineers and provide technical leadership