Lead Machine Learning Engineer (Multiple Positions)

Design and build end-to-end machine learning systems that improve recommendations, platform security, and the user experience. Develop and deploy ML and deep learning models using modern frameworks, and create training pipelines for rapid iteration. Own the full ML stack, optimize algorithms and infrastructure, and tune data and query performance for daily analytics. Lead code reviews and mentor junior and mid-level engineers while partnering cross-functionally on product strategy and features.