Founding Machine Learning Engineer
About the Role
An early-stage AI systems company is seeking a Founding Machine Learning Engineer to build its machine learning function and shape the technical direction of post-training and agent systems. You will work closely with the founding team and help set priorities for experiments, infrastructure, and future team growth.
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, observability systems, and replay infrastructure.
Establish validation and provenance tracking to improve trajectory and data quality.
Set machine learning roadmap priorities across systems, experiments, and hiring.
Guide the technical direction of the machine learning team as it grows.
What We're Looking For
At least 3 years of experience in machine learning engineering, building or delivering production machine learning systems.
Production software engineering experience wit
