staff software engineering Staff Engineer tech_leadership 3+ yrs Master's · Posted Jan 23, 2026

About this role

Amazon is hiring a staff-level Staff Engineer in the software engineering function based in San Francisco, CA. The posting calls out experience with LLMs, Reinforcement Learning, Machine Learning, AI Agents and roughly 3+ years of relevant work. Listed education preference: a master's degree or equivalent.

Role
Staff Engineer
Function
software engineering
Level
staff
Track
Tech leadership
Employment
Full-time
Location
San Francisco, CA
Work mode
On-site
Experience
3+ years
Education
Master's degree
Department
Applied Science
Posted
Jan 23, 2026
AI Summary
Staff Engineer developing AI agents at Amazon's San Francisco research lab, combining LLMs with reinforcement learning for reasoning and planning. Responsibilities include model training, dataset design, and optimization. Requires 3+ years building ML models for business applications.

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Job description

from Amazon careers
Amazon has launched a new research lab in San Francisco to develop foundational capabilities for useful AI agents. We’re enabling practical AI to make our customers more productive, empowered, and fulfilled. In particular, our work combines large language models (LLMs) with reinforcement learning (RL) to solve reasoning, planning, and world modeling in both virtual and physical environments. Our research builds on that of Amazon’s broader AGI organization, which recently introduced Amazon Nova, a new generation of state-of-the-art foundation models (FMs).

Our lab is a small, talent-dense team with the resources and scale of Amazon. Each team in the lab has the autonomy to move fast and the long-term commitment to pursue high-risk, high-payoff research. We’re entering an exciting new era where agents can redefine what AI makes possible. We’d love for you to join our lab and build it from the ground up!


Key job responsibilities
You will contribute directly to AI agent development in an applied research role, including model training, dataset design, and pre- and post-training optimization. You will be hired as a Member of Technical Staff.

Basic Qualifications

- 3+ years of building machine learning models for business application experience

Preferred Qualifications

This is an excerpt. Read the full job description on Amazon careers →
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