Jobs

Hark is seeking a Member of Technical Staff - Mid-Training to lead the development of training strategies for advanced AI models. This role focuses on bridging pre-training and post-training to enhance reasoning, planning, and tool-use capabilities at scale. You will design and implement mid-training strategies, scale synthetic data pipelines, and optimize distributed training for large models. The ideal candidate will have a strong background in machine learning, deep understanding of reinforcement learning, and proficiency in Python and PyTorch, with a focus on unlocking the next frontier of agent behavior.