Senior Machine Learning Engineer, Assistance Engineering

The Community Support Products Machine Learning team drives generative AI initiatives for Airbnb's customer support, building LLM fine-tuning, retrieval/search, evaluation and guardrail systems. This role involves designing and building ML systems and product integrations to improve customer service experiences, working cross-functionally with product, design and engineering teams across China and the US.

• PhD or Master's degree in CS or equivalent experience; 4+ years of ML engineering experience owning large-scale software systems; experience designing and building AI/ML systems and services; experience with LLM-driven chatbots or agentic AI a plus; fluency in English and Mandarin required.