Machine Learning Engineer, Assistance Engineering
About The Position
The Machine Learning Engineer will join Airbnb’s Core ML team in Assistance Engineering, which adopts agentic AI technologies to deliver scalable and exceptional customer service. The team develops Chat AI and Voice AI assistants and works with agentic architectures, AI models, ML services, supervised fine-tuning, reinforcement learning, distillation, RAG and search, LLM evaluation, testing automation, feedback-based learning, and guardrails. The role focuses on building and applying advanced AI technologies to transform Airbnb customer service through personalized, easy-to-use, and proactive experiences. Many initiatives are at an early conceptual stage, offering the opportunity to shape ideas from inception through production. The position is US remote eligible, with occasional work at an Airbnb office or attendance at offsites as agreed with the manager. The employee must live in a state where Airbnb, Inc. has a registered entity.
Requirements
- PhD or master's degree with 3+ years of experience in computer science, machine learning, artificial intelligence, or a related technical field, or equivalent industry experience.
- Hands-on expertise in LLMs, including pretraining, fine-tuning (SFT, RLHF, GRPO), prompt engineering, RAG architectures, and LLM evaluation frameworks.
- Experience building agentic AI systems, including multi-agent orchestration, tool use, planning, memory, and autonomous reasoning pipelines (e.g., ReAct, LangGraph, AutoGen, or similar).
- Experience shipping production-grade ML/AI systems at scale, with a deep understanding of ML infrastructure, model serving, and MLOps best practices.
- Excellent communication skills and ability to collaborate effectively across engineering, product, and design organizations.
Responsibilities
- Champion the development of novel ML systems, product integrations, and performance optimizations to solve real-world problems.
- Work cross-functionally with product, design, and engineering counterparts to design and build efficient AI solutions for Airbnb customer service products.
- Learn and share the latest AI/ML technologies with the team.
Benefits
- May be eligible for a bonus.
- May be eligible for equity.
- Benefits.
- Employee Travel Credits.
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
