Software Development Engineer II Builder Experience, GenAI, GenAI, Codex

Were seeking an experienced Software Development Engineer II to join the CRUX (Code Review User eXperience) team within Amazons Software Builder Experience this role youll build and scale critical code review infrastructure that serves thousands of Amazon builders daily enabling them to ship code faster and more reliably. Youll work on high-impact projects including AI-powered code review assistance autonomous agents for development workflows and Vendor Central applications with five-nine availability requirements. This position offers the opportunity to drive innovation at Amazon scale while directly improving developer productivity across the company. Your work will be visible to senior leadership and will shape the future of software development at Amazon.

Key job responsibilities
Design and Build Scalable Systems: Architect develop and maintain code review infrastructure and Vendor Central applications that handle millions of requests with high availability and air-tight security requirements
Drive AI Innovation: Lead development of AI-powered features including CRUX Description Genie autonomous code review agents and intelligent workflow automation that transform how builders work
Own End-to-End Delivery: Take complete ownership of projects from requirements scoping through production launch including design implementation testing deployment monitoring and operations
Ensure Operational Excellence: Build observable maintainable systems with comprehensive monitoring alarming automated remediation and runbook documentation
Collaborate Cross-Functionally: Partner effectively with product managers UX designers data engineers and engineering teams across ASBX AWS and other organizations to deliver integrated solutions
Mentor and Elevate: Share technical knowledge conduct code reviews and help develop less experienced engineers on the team through pairing and knowledge transfer
Solve Complex Problems: Tackle distributed computing challenges find creative workarounds to hard problems and make sound technical trade-offs that balance speed with quality


- 3 years of non-internship professional software development experience
- 2 years of non-internship design or architecture (design patterns reliability and scaling) of new and existing systems experience
- 1 years of software development engineer or related occupational experience
- 1 years of designing and developing large-scale multi-tiered multi-threaded embedded or distributed software applications tools systems and services using: C# C Java or Perl experience
- 1 years of Object Oriented Design experience
- Bachelors degree or foreign equivalent in Computer Science Engineering Mathematics or a related field
- Experience programming with at least one software programming language

- 3 years of full software development life cycle including coding standards code reviews source control management build processes testing and operations experience
- Bachelors degree in computer science or equivalent

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 youre applying in isnt 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 WA Seattle - 143700.00 - 194400.00 USD annually