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Principal Applied Scientist- Agentic RL , Kiro

Amazon

Principal Applied Scientist- Agentic RL , Kiro

full-timePosted: Aug 17, 2026Updated: Aug 27, 2026Seattle, Washington, United States

Job Description

AWS Agentic AI is looking for a Principal Applied Scientist who will partner with world-class scientists and engineers to pioneer the next generation of AI-driven development tools. Join the Amazon Kiro LLM-Training team and help create the most efficient coding agents for Kiro that are transforming the software development landscape. Key job responsibilities As a key member of our team, you'll be at the forefront of innovation in agentic RL space: - Push the boundaries of reinforcement learning and post-training methodologies for large language models specialized in code intelligence - Invent and implement state-of-the-art agentic RL training recipes that operate at unprecedented Amazon scale - Deploy revolutionary products that directly impact the daily workflows of millions of developers worldwide - Break new ground in AI and machine learning, challenging what's possible in intelligent code assistance - Publish and present your pioneering work at premier ML conferences (NeurIPS, ICML, ICLR ) - Accelerate innovation by working directly with customers to rapidly transition research breakthroughs into production systems About the team Kiro team is reimagining the builder experience through generative AI and foundation models. We're leveraging the latest advances in AI to transform how engineers work from IDE environments to web-based tools and services, empowering developers to tackle projects of any scale with unprecedented efficiency.

Locations

  • Seattle, Washington, United States
  • Santa Clara, California, United States
  • New York, New York, United States

Salary

228,700 - 309,400 USD / yearly

Skills Required

  • patentsintermediate

Required Qualifications

  • PhD, or Master's degree and 10+ years of CS, CE, ML or related field experience (experience, 10 years)
  • 5+ years of hands-on large scale training experience (experience, 5 years)
  • Experience in patents or publications at top-tier peer-reviewed conferences or journals (experience)
  • Experience programming in C++, Python or related language (experience)

Preferred Qualifications

  • Prior experience at training or inference large scale models (experience)
  • Los Angeles County applicants: Job duties for this position include: work safely and cooperatively with other employees, supervisors, and staff; adhere to standards of excellence despite stressful conditions; communicate effectively and respectfully with employees, supervisors, and staff to ensure exceptional customer service; and follow all federal, state, and local laws and Company policies. Criminal history may have a direct, adverse, and negative relationship with some of the material job duties of this position. These include the duties and responsibilities listed above, as well as the abilities to adhere to company policies, exercise sound judgment, effectively manage stress and work safely and respectfully with others, exhibit trustworthiness and professionalism, and safeguard business operations and the Company’s reputation. Pursuant to the Los Angeles County Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records. (experience)

Responsibilities

  • Push the boundaries of reinforcement learning and post-training methodologies for large language models specialized in code intelligence
  • Invent and implement state-of-the-art agentic RL training recipes that operate at unprecedented Amazon scale
  • Deploy revolutionary products that directly impact the daily workflows of millions of developers worldwide
  • Break new ground in AI and machine learning, challenging what's possible in intelligent code assistance
  • Publish and present your pioneering work at premier ML conferences (NeurIPS, ICML, ICLR )
  • Accelerate innovation by working directly with customers to rapidly transition research breakthroughs into production systems

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