OpenAI is seeking a ML Infrastructure Engineer to join their Runtime team, focusing on building and optimizing low-level framework components for ML training systems. This role combines advanced engineering skills with machine learning expertise to improve training throughput and enable cutting-edge research. The position offers an opportunity to work on large-scale GPU implementations and directly impact the development of next-generation AI models. Based in San Francisco with a hybrid work model, the role offers competitive compensation ($380K-$555K plus equity) and comprehensive benefits. The ideal candidate should have experience with ML experiments, system optimization, and strong Python programming skills. OpenAI's mission focuses on developing safe and beneficial artificial intelligence, making this an opportunity to contribute to groundbreaking advancements in AI technology while ensuring it benefits humanity.