Own complex ML problems end-to-end, from exploration through production deployment and iteration. Drive technical strategy in model development, evaluation, and optimization for clinical AI. Build and optimize production LLM systems, including fine-tuning pipelines and preference optimization. Work deeply across the full AI stack, from data preparation to production monitoring. Influence technical decisions and ensure solutions address the right problems by partnering with Product, Clinical, and Engineering teams. Raise the technical bar by mentoring engineers and establishing best practices. May lead 1-2 engineers on specific projects, providing technical direction and mentorship.