Principal Software Engineer, S3 Keystone

Principal Software Engineer, S3 Keystone

Job  | Amazon Development Center U.S., Inc.

Are you ready to tackle some of the most complex challenges in cloud storage at an unprecedented scale? Join Amazon S3 as a Principal Engineer and help shape the future of storage technology that powers businesses and services across the globe. At Amazon S3, we manage data at a scale that most can only imagine: trillions of objects, billions of TPS, and 11 nines of durability.

As a Principal Engineer in S3 Keystone, you'll be at the forefront of innovation, designing and implementing solutions that push the boundaries of what's possible.

• Architect and drive the implementation of large-scale, distributed fleet automation services that manage millions of hosts.
• Provide technical leadership across multiple teams within S3, mentoring senior engineers and influencing the technical direction of the entire organization.
• Collaborate with other Principal Engineers and Sr Principals to solve complex, cross-cutting problems that impact S3 and AWS.
• Foster a culture of engineering excellence, promoting best practices in software development, testing, and operations across the S3 organization.
• Represent S3 in technical forums both within S3 and also across AWS, contributing to the broader tech community.

S3 Keystone provides foundational services that power AWS's largest storage fleets, managing over 2.2M hosts worldwide. We're responsible for the core infrastructure that enables AWS S3, one of the world's largest storage systems. We obsess over fleet health and innovate to drive down infrastructure costs, where even small improvements yield massive impact at our scale.

• 12+ years of professional full time work experience
• 10+ years working on large-scale, distributed systems
• Bachelor's degree in Computer Science or similar

• 15+ years of work experience
• Deep expertise in S3
• Masters degree

The base salary range for this position is $200,100 to $270,600 USD annually. 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, 401(k) matching, paid time off, and parental leave. Learn more about our benefits at (Use the "Apply for this Job" box below)..

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.