AmazonUI (AUI) is looking for a Senior Software Development Engineer (SDE-III) to modernize Amazon's front-end developer experience. AUI provides a library of front-end components, build tools, a templating engine, and runtime libraries used by thousands of engineers.
AUI engineers have a range of skills but, as a team, we set the bar for engineering accessible features, deploying client-side code, generating HTML, and ultra-low JavaScript golf scores. Our customer base gives us incredible leverage and the spotlight is often on us. We think in terms of frameworks not features. We make tools and languages.
As a team, we have been using either Kotlin or TypeScript for the last year, though we maintain existing code bases that use Java, Perl, and JavaScript. We use git for our VCS, and a proprietary system for managing our continuous deployments. We value testability, maintainability, code quality, and cogent design. Our products include the front end framework for Amazon, a JavaScript and CSS build system used by thousands, and a compiler for deploying markup templates across multiple languages.

Key job responsibilities
Technical Leadership & Innovation
Lead the development of large-scale UI components for Amazon's global shopping experience
Drive adoption of front-end technologies and industry standards
Architect scalable solutions that work across Amazon's worldwide platforms
Performance & Quality Excellence
Implement and monitor performance metrics for front-end systems
Develop optimization strategies for high-traffic shopping interfaces
Establish quality assurance processes and testing frameworks for UI components
Component Development & System Design
Create reusable, enterprise-level UI components for store-wide implementation
Design and maintain modular front-end architecture systems
Ensure accessibility and responsive design across all developed components
Impact Measurement & Analytics
Define and track success metrics for front-end initiatives
Analyze and report on component performance across global markets
Drive data-informed decisions for UI improvements and optimizations
Cross-functional Collaboration
Partner with design, product, and engineering teams to deliver cohesive solutions
Contribute to technical documentation and best practices
Mentor team members and promote knowledge sharing across organizations

A day in the life
On the AmazonUI Shopper Experience team, you will:
1. Participate in scrum ceremonies like standup, grooming, planning and retro mettings to collaborate and stay connected with your peers.
2. Write high quality, well tested code to further our novel technology solutions that remove undifferentiated work for Amazon front end developers.
3. Maintain a high bar on support for our broadly used Component library and supporting front-end developers building features for the Amazon shopping experience.