Machine Learning Engineer

Cartesian is seeking a Senior Machine Learning Engineer to join its core R&D team in Cambridge, MA, to own machine learning problems end-to-end for indoor positioning and item localization. The role involves designing, developing, and deploying deep learning models while building and optimizing training and inference pipelines for production. This position requires a balance of broad technical knowledge and deep judgment to navigate ambiguity and drive high-impact solutions in a fast-paced startup environment.