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Applied Scientist, RL post-training, AWS

Do you want to work on Reinforcement Learning (RL) post-training of frontier Large Language Models (LLMs) to revolutionize customer service? Come join the world class researchers and academics in the AWS AI endeavor, and develop the science

Company

Amazon

Location

Seattle, Washington, USA

Status

Open

Posted

2026-09-25T00:00:00+00:00

Amazon's AWS AI group in Seattle is hiring an Applied Scientist to work on reinforcement learning post-training of large language models, aimed at customer-service applications. The work covers improving instruction following, reasoning over long context and tool use, with findings expected at peer-reviewed conferences. Candidates need three or more years building models for business applications, a PhD or a master's degree with four years of experience, publications or patents, and programming in Python, Java or C++. The salary range is listed as $142,800 to $193,200 a year.