Have you ever wanted to work on machine learning challenges that will make a lasting impact on society and solve key problems that impact the experience of millions of Amazon customers? Do you like to own and solve complex, ambiguous, and hard problems? We are looking for brilliant Machine Learning Scientists who have the passion to tackle tough problems to help inform a new product from the very early stages. Together with a multi-disciplinary team of scientists, engineers, economists, product managers, and subject domain experts you will work on building a product with machine learning at its core. You will define the research and experiment strategy with an iterative approach to create machine learning models and progressively improve the results over time. We are looking for candidates who thrive in a fast paced environments and want to invent the future.