principal machine learning Applied Scientist tech_leadership 10+ yrs Master's · Posted Nov 26, 2025
$228,700 – $309,400
USD per year

About this role

Amazon is hiring a principal-level Applied Scientist in the machine learning function based in Santa Clara, CA. The posting calls out experience with Python, Java, AWS, LLMs and roughly 10+ years of relevant work. Listed education preference: a master's degree or equivalent. Compensation is listed at $228,700–$309,400 per year.

Role
Applied Scientist
Function
machine learning
Level
principal
Track
Tech leadership
Employment
Full-time
Location
Santa Clara, CA
Experience
10+ years
Education
Master's degree
Department
Applied Science
Posted
Nov 26, 2025
AI Summary
Principal-level Applied Scientist leading agentic AI research and development at AWS. Develop novel algorithms in NLU, LLM training, and reasoning systems while mentoring junior scientists and managing a small team. Drive technology strategy, build prototypes, and communicate R&D progress to stakeholders.

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Job description

from Amazon careers

AWS Agentic AI is looking for a world-class Applied Scientist with a strong deep learning background to help build industry-leading Agentic AI (models, systems, and applications). Our mission is to provide a delightful experience to Amazon’s customers by pushing the envelope in Natural Language Understanding (NLU), AI assisted code development, reasoning and planning with LLMs, LLM training and fine-tuning, and Applied Machine Learning (ML). As part of our AI team in Amazon AWS, you will work alongside internationally recognized experts to develop novel algorithms and modeling techniques to advance the state-of-the-art in Agentic AI. Your work will directly impact millions of our customers in the form of products and services that make use AI technology. You will gain hands on experience with Amazon’s heterogeneous text, structured data sources, and large-scale computing resources to accelerate advances in language understanding. We are looking for experienced scientists who can make complex, autonomous systems understandable and debuggable through intelligent instrumentation and simulation. Key job responsibilities - Develop technical breakthroughs in agentic infrastructure and applications - Mentor and guide junior scientists. - Manage a small team of scientists - Develop technology strategy and roadmap supporting product development - Develop prototypes for key technology, oversee the…

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