Our Client is seeking a Senior Data/AI/ML Software Engineer to build core Machine Learning (ML)/Natural Language Processing (NLP) systems that transform raw Electronic Record data into actionable insights. You'll work on cutting-edge Artificial Intelligence (AI) in production—leveraging knowledge graphs, Large Language Models (LLMs), and advanced NLP to solve some of the hardest, most data-intensive problems. This is an early-stage, start-up where your work ships fast, gets direct feedback, and shapes the future of the product. This is a hybrid work environment, so some on-site work in San Francisco is required on a weekly basis.