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Senior Staff Machine Learning Engineer, Post Training

Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts

Company

Airbnb

Location

Remote - USA

Status

Open

Posted

2026-05-05T20:58:33+00:00

Airbnb's Customer Support AI team is hiring a senior staff machine learning engineer to fine-tune large language models for support and travel products such as an AI assistant and autonomous agents. The work covers data processing for fine-tuning, alignment, reinforcement learning, evaluation, RAG, and inference optimisation on Airbnb's ML infrastructure, including quantisation and GPU inference. The posting asks for a PhD, 10+ years building ML models at scale, and Python with PyTorch. It is US remote, paying $248,000–$310,000.