Research Engineer

Building this platform has two halves – the systems that surround the model, and the model itself. This role owns the second, at scale.

Frontier models have never seen most of what we work on. Proprietary dialects, customer-specific configuration, semantics that exist in no public corpus, and tasks that run forty steps before anything tells you whether you were right. Closing that gap with post-training, environments, and evaluation is a research problem, and Research Engineers are the people who make it happen at scale.

You build the training, environment, evaluation, and inference machinery that turns a hypothesis about agent behavior into a measured result, and then into a model that ships. You'll work closely with Research Scientists and own experiments of your own within weeks. The division isn't seniority or idea ownership — Research Engineering owns the machinery and is accountable for it working at scale; Research Science owns the agenda and is accountable for the result being true.