AC Wellness Network LLC, a subsidiary of Apple Inc., is seeking a Senior Machine Learning Engineer/Data Scientist to join their DS & ML team. This role focuses on developing cutting-edge machine learning models for health projects using BERT models and LLMs. The position involves working at the intersection of medical care delivery and advanced technologies, delivering ML solutions in a production environment while managing the organization's data ecosystem. The ideal candidate will work with a diverse team in a privacy-focused, fast-paced environment, conducting self-directed investigation into complex ML problems and collaborating with various stakeholders. The role requires strong technical expertise in ML, particularly in NLP, combined with excellent communication skills and the ability to work with both technical and non-technical team members. This is a site-based position at Apple's Wellness Centers in Santa Clara Valley, offering competitive compensation including base pay, stock options, comprehensive benefits, and the opportunity to impact thousands of lives through innovative healthcare solutions. The role demands someone who can balance technical excellence with practical implementation, while maintaining a strong focus on privacy and healthcare outcomes.