As a Senior Machine Learning Engineer on Airbnb's pricing guidance team, you'll develop and refine machine learning models for pricing recommendations, focusing on reinforcement learning techniques. You'll collaborate with data scientists, product managers, and engineers to create effective, user-friendly pricing models that contribute to host success. Your responsibilities include developing and testing ML models, analyzing performance, presenting updates, and integrating models into host tools. You'll need 5+ years of ML engineering experience, strong programming skills in Python or R, and expertise in reinforcement learning. This US-remote position offers a competitive salary range of $185,000 - $223,000 USD, with potential for bonuses, equity, benefits, and Employee Travel Credits. Airbnb values diversity and inclusion, committed to working with the broadest talent pool possible to foster innovation and engagement.