Founding Engineer will work across AI research and engineering to develop reinforcement learning and post-training systems. Responsibilities include exploring open-ended problems, building model-learning systems, moving prototypes into production, shaping technical direction, and helping establish engineering culture. The role requires strong engineering judgment, independent problem-solving, rapid execution, and enthusiasm for intelligence and model capabilities. Experience with AI agents, machine learning, reinforcement learning, post-training, early products, research tools, or technical infrastructure is preferred.

As the first GTM hire, you will establish and execute the go-to-market strategy, generate pipelines, and close deals, focusing on technical platform sales.