This is a high-impact, high-visibility role ideal for someone with deep machine learning expertise, a passion for building scalable systems, and the leadership skills to manage both people and projects in a dynamic, cross-functional environment. Set Strategy and Vision : Define the technical vision and long-term roadmap for engagement modeling, aligning cutting-edge ML solutions with Redditβs product and business objectives. Lead Model Development : Oversee the full ML lifecycle, from data generation and pipeline architecture to model training, evaluation, and deployment at scale. Drive ML Innovation : Design and implement state-of-the-art deep learning architectures focused on user engagement, ranking, and recommendation. Team Leadership : Build, mentor, and lead a team of talented machine learning engineers. Foster a culture of technical rigor, innovation, and career growth. Cross-Functional Collaboration : Work closely with product managers, data scientists, and engineers across the Ads organization to define engagement goals, model KPIs, and data needs. Ensure Model Quality : Maintain high standards for ML performance, scalability, interpretability, and robustness in a production environment.