AI Researcher

About the role We’re looking for researchers and engineers who love training the best AI models. You’ll work on the full training stack, from data and recipes to post-training, RL, and evaluation, alongside a small, high-caliber team building at the frontier of AI systems. What you might work on Pre-training, mid-training, and post-training of large models Reinforcement learning, reasoning, and reward modeling Data, evaluation, and the research behind making models measurably better You might be a fit if you Have a track record of research or engineering on large-model training Care about shipping results, not just publishing them Are curious, direct, and comfortable with ambiguity