Founding Machine Learning Engineer
Core
Own the machine learning function at an early-stage AI company, shaping post-training and agent systems from research through production.
Role type
Founding Machine Learning Engineer
Builds
Post-training and agent systems, evaluation frameworks, data pipelines, and observability infrastructure
Domain
Artificial Intelligence / Machine Learning / Reinforcement Learning
Deliverable
production ML models
Required skills
Post-training ML, evaluation frameworks, Python, systems-level software engineering, agent environment design, reinforcement learning, trajectory data, reward structures, data validation, provenance tracking, observability systems
Preferred skills
Bridging research and production, working in ambiguous environments
Technologies
Python
Responsibilities
Structure, filter, and score experimental trajectories for training data pipelines; Design and implement evaluations and benchmarks for model reasoning and planning; Build reliable agent environments, tool interfaces, and replay infrastructure; Establish validation and provenance tracking for data quality; Set priorities for ML systems, experiments, and hiring
Seniority
Founding, hands-on IC
