Senior Machine Learning Engineer

About the Role A1 is building a proactive AI system that carries work forward across conversations, tools, and time. You will be a core owner of significant ML systems in production. This role is for engineers who can independently drive complex ML problems from idea to deployment and make strong trade-offs along the way. Focus Build core ML systems that power a proactive, long-horizon AI product. Own work end-to-end: data preparation, training, evaluation, inference, and iteration. Turn resear…