Principal Software Engineer, S3 Keystone

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.

Key job responsibilities

This role offers the unique opportunity to work on technology that directly impacts millions of customers worldwide. If you're passionate about solving complex problems at massive scale and want to be at the cutting edge of cloud storage technology, we want to hear from you.

- 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.

About the team

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.

BASIC QUALIFICATIONS

- 12+ years of professional full time work experience

- 10+ years working on large-scale, distributed systems

- Bachelors degree in Computer Science or similar

PREFERRED QUALIFICATIONS

- 15+ years of work experience

- Deep expertise in S3

- Masters degree

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

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner.

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

USA, WA, Seattle - 200,100.00 - 270,600.00 USD annually