Software Development Engineer, S3 Object API

About the role

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.

Key job responsibilities

• 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
• Enjoy a team culture that values work/life balance while maintaining high standards

About The Team

AWS values diverse experiences. Even if you do not meet all of the preferred qualifications and skills listed in the job description, we encourage candidates to apply. If your career is just starting, hasn’t followed a traditional path, or includes alternative experiences, don’t let it stop you from applying.

Our Philosophy

At AWS, if you build it, you own it. We hold a high bar for test automation, design reviews, and operational excellence—because our customers demand nothing less.

A Day in the Life

Upon joining S3, every employee is paired with a peer buddy who will help you to quickly come up to speed in understanding the technology we’re building, the tools we use and the business problems we’re trying to solve. We hire exceptional people and we recognize the importance of coaching others. We have a formal mentor search application that lets you find a mentor that works best for you based on location, job family, and job level.

Work/Life Balance

We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is why we strive for flexibility as part of our working culture. When we feel supported in the workplace and at home, there’s nothing we can’t achieve in the cloud.