Software Development Engineer, S3 Index Routing

Amazon Web Services' Cloud Storage — AWS S3

Amazon Web Services' Cloud Storage — AWS S3 is one of the largest distributed storage systems in the world. Managing trillions of objects in storage, retrieving them in sub‑x ms, building software that deploys to tens of thousands of hosts, building applications serving billions of transactions per second, achieving % 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).

AWS S3 powers businesses across the globe that make the lives of customers better daily. As a Software Development Engineer in S3, you get to deliver these capabilities and delight our customers through teams of talented engineers and leaders.

With trillions of objects to manage, keeping track of what is in S3 is hard. S3 Index develops software responsible for durability and availability of key‑value metadata. We tackle some of the hardest computer science problems. We build systems that can handle wildly varying access patterns and unprecedented load by our customers. Managing this growth auto‑magically, without the need for customers to provision capacity, is what puts the “Simple” in Simple Storage Service (S3).

S3 Index is looking for a passionate software engineer to build the next generation of S3 Index systems.

In AWS, if you build it, you own it. S3 is a highly available 24x7 worldwide service requiring dedicated support from our engineering teams. We pride ourselves on a high level of ownership in the work we do. This means we hold a high bar for test automation, verification processes, design and code reviews to ensure that our systems meet the exacting standards our customers demand.

We maintain a regular on‑call rotation across our teams with engineers and managers all taking part to resolve issues that arise. We work hard to minimize getting paged in the middle of the night as we recognize that a well‑rested team‑member is a productive and innovative one.

Creating a reliable, scalable, and flexible web service requires exceptional technical expertise, a sound understanding of the fundamentals of Computer Science, and practical experience building large‑scale distributed systems. You should be somebody who enjoys working on complex software systems, is customer‑centric, and feels strongly not only about building good software but about making that software achieve its goals an operational reality.

Come join us and help solve a challenging set of problems in a space packed full of opportunities.

• Bachelor’s degree or equivalent
• 4+ years of non‑internship professional software development experience
• 4+ years of programming using a modern programming language such as Java, C++, or C#, including object‑oriented design experience
• 3+ years of non‑internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience

• Master’s degree or equivalent
• Strong operational excellence mindset with experience reducing operational burden through automation
• Demonstrated experience leveraging AI‑powered coding assistants and agentic development tools to accelerate software development workflows — including code generation, automated testing, code review, debugging, and documentation
• Experience mentoring junior engineers and driving technical best practices across a team
• Experience with large‑scale distributed storage or data systems

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 (Use the "Apply for this Job" box below). 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 —  –  USD annually