Anthropic Machine Learning Engineer jobs

Anthropic research engineers sit inside research teams — pretraining, post-training, RL, interpretability, alignment — in a blended research and engineering role that values code quality and pairing. Hiring is rolling through Greenhouse and mostly in office, and the only early-career route is the paid Fellows program.

A Research Engineer ladder with Staff and Staff+ tiers and no separate MLE title, across Pretraining, Production Model Post-Training, RL (Code, Computer Use, Cyber, Chip Design), Interpretability, Alignment, Discovery and Safeguards ML, plus TPU kernel and GPU performance engineers; applied-AI titles are posted separately as Applied AI Engineer (3 US) and Applied AI Architect (10 US).