Founding Machine Learning Engineer

About the Role As the founding machine learning engineer at an early-stage AI company, you will build the ML function from the ground up. You will shape post-training and agent systems, set technical priorities, and help grow the team. What You'll Do Structure, filter, and score experimental trajectories for training data pipelines. Design and implement evaluations and benchmarks for model reasoning, planning, and experimental progress. Build reliable agent environments, tool interfaces, observ…