Applied Scientist II (AI)

TL;DR

Applied Scientist II (AI): Designing and building agentic AI applications for Amazon advertisers with an accent on developing model and agent optimization techniques and building evaluation pipelines. Focus on advancing the agent ecosystem through tool orchestration, multi-step reasoning, and adaptive preference-driven behavior, ensuring safety and reliability.

Location: Onsite in New York, USA or Seattle, USA

Salary: $172,400–$223,400 USD annually (New York) or $142,800–$193,200 USD annually (Seattle)

Company

The Sponsored Products and Brands team at Amazon Ads is transforming advertising using generative AI to enhance customer discovery and brand engagement across Amazon.com and beyond.

What you will do

• Design and build agents to guide advertisers in conversational and non-conversational experiences.
• Implement advanced model and agent optimization techniques, including supervised fine-tuning and preference optimization (e.g., DPO/IPO).
• Curate datasets and tools for Multi-Channel Personalization (MCP).
• Build evaluation pipelines for agent workflows, including automated benchmarks, multi-step reasoning tests, and safety guardrails.
• Develop agentic architectures (e.g., CoT, ToT, ReAct) that integrate planning, tool use, and long-horizon reasoning.
• Collaborate with engineering and product teams to bring scientific innovations into production.

Requirements

• PhD, or Master's degree and 4+ years of experience in CS, CE, ML, or related fields.
• 3+ years of experience building models for business applications.
• Experience programming in Java, C++, or Python.
• Experience in designing experiments and statistical analysis of results.
• US work authorization is required due to the specific US-based locations and benefits.

Nice to have

• Experience in professional software development.
• Experience in state-of-the-art deep learning model architecture design, training, optimization, and model pruning.

Culture & Benefits

• Dedicated to developing responsible and intelligent AI technologies that balance the needs of advertisers and enhance the shopping experience.
• Energized by solving complex challenges and pushing the boundaries of what's possible with AI.
• Comprehensive benefits including health insurance (medical, dental, vision, prescription), 401(k) matching, paid time off, and parental leave.
• Inclusive culture empowers Amazonians to deliver the best results for customers.
• Opportunity to work at the forefront of applied AI, revolutionizing advertising experiences.