Research Engineer, Codex

Company hidden

San Francisco Full-time$380k–$500k / year Posted 30+ days ago

Above market. This role pays above the $188k median for similar USD roles (198 comparable postings in our corpus).

We define what the next generation of agents should be able to do, build the training signal that teaches those abilities, and run the experiments that make them real. Our work spans coding, tool use, computer use, multi-agent coordination, long-horizon execution, factuality, instruction following, calibrated reasoning, and taste. Our team is where new model capabilities get made. We build the data, environments, graders, training methods, and feedback loops that shape what the company's next agents can do, then carry those capabilities through major training runs and into the products…

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