Applied Scientist II, Stores Foundational AI; SFAI M5

Position: Applied Scientist II, Stores Foundational AI (SFAI) M5

Applied Scientist II, Stores Foundational AI (SFAI) M5

Job | Services LLC

We’re working to improve shopping on Amazon using the conversational capabilities of large language models, and are searching for pioneers who are passionate about technology, innovation, and customer experience, and are ready to make a lasting impact on the industry. You’ll be working with talented scientists, engineers, and technical program managers (TPM) to innovate on behalf of our customers.

We’re looking for scientists with deep LLM expertise to help us build the next generation of large language models. Our team focuses on post‑training, including instruction tuning, reward modeling, reinforcement learning, and aligning LLMs with other embedding modalities.

Responsibilities

In this role, you will design and run large‑scale experiments, analyze model behavior, and develop new training recipes that directly improve core capabilities like reasoning, personalized experiences, and other frontier paradigms that redefine what LLMs can do.

Basic Qualifications

• PhD, or Master's degree and 4+ years of CS, CE, ML or related field experience
• Experience programming in Java, C++, Python or related language
• Experience in any of the following areas: algorithms and data structures, parsing, numerical optimization, data mining, parallel and distributed computing, high‑performance computing

Preferred Qualifications

• Experience using Unix/Linux
• Experience in professional software development

Compensation & Benefits

USA, WA, Seattle – $ – $ USD annually. The base salary range for this position is listed below. Your Amazon package will include sign‑on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave.

Learn more about our benefits at (Use the "Apply for this Job" box below)..

We are an equal opportunity employer and do not discriminate on the basis of protected veteran status, disability, or other legally protected status.

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