DoorDash is seeking a Staff Machine Learning Engineer to lead their Merchant Tax Categorization Service initiative. This role combines advanced ML expertise with practical business impact, focusing on developing AI/ML solutions to manage tax categorization for billions of items across restaurants and non-restaurant merchants. The position requires deep expertise in machine learning, particularly in areas like NLP, LLM, and multi-modality models. As a staff engineer, you'll lead the development of cutting-edge ML solutions, collaborate with cross-functional teams, and drive AI product strategy. The role offers competitive compensation ($203,500-$299,300), comprehensive benefits, and the opportunity to work at a rapidly growing technology company that's transforming local economies. DoorDash provides a collaborative environment where you can make significant impact while working with state-of-the-art ML technologies. The position is available in major tech hubs including San Francisco, Sunnyvale, Seattle, and New York, offering flexibility in location while maintaining a strong focus on innovation and technical excellence.