Software Development Engineer, S3 Object API

About this role

Description
Managing trillions of objects in storage, retrieving them in sub-x ms, building software that deploys to tens of thousands of hosts, achieving 99.999999999% (you didn’t read that wrong, that’s 11 nines!) durability. These are just a few of the numbers that give you a sense of the scale of the exciting problems you will find every day working in Simple Storage Service (S3). Amazon S3 powers businesses across e globe that make the lives of consumers better daily. Whether its electronic content delivered to your home, technology that betters your remote working experience, allows you to plan travel to exotic places or simply get stuff delivered to your home.


Key job responsibilities


Software Development Engineer – S3 Object API


Join the S3 Object API team and build services at massive scale, supporting billions of requests per minute across a globally distributed fleet serving millions of customers.


What You'll Do

• Design, develop, and maintain highly available services powering Amazon S3
• Build tools and automation to streamline operations, improve CI/CD pipelines, and reduce operational load
• Drive best practices for code quality, fleet health, security, and reliability
• Mentor junior engineers, helping them grow their skills and effectiveness
• Participate in design reviews, operations meetings, and leadership discussions
• Write clear documentation to help teams get the most from our services and tools

What To Expect

• Ship code frequently and see its real-world impact on a vast customer base
• Work alongside engineers who obsess over performance, availability, scalability, and durability
• Participate in an on-call rotation—we invest heavily in automation and testing to minimize disruptions
• Enjoy a team culture that values work/life balance while maintaining high standards

Our Philosophy
At AWS, if you build it, you own it. We hold a high bar for test automation, design reviews, and operational excellen...