Join Amazon's Unified Auth team and help build the core trust infrastructure that secures every interaction across Amazon. We are seeking a Principal Software Development Engineer to lead the SDK and developer experience, defining the future of authentication and authorization in an AI-driven world. This role offers significant autonomy to shape technical strategy and architecture for a multi-language SDK and the end-to-end builder journey.

Our systems manage billions of interactions across thousands of applications, ensuring evolving security, privacy, and compliance demands are met. We are the foundation for CloudAuth, enabling teams to enforce least privilege access at scale. If you're passionate about building resilient, secure, and developer-friendly infrastructure, this is your opportunity.

Spearhead the technical strategy and architecture for a multi-language SDK and the complete builder experience, focusing on near-zero friction adoption by thousands of teams and their coding agents.

Deliver robust resilience to ensure authentication never causes service slowdowns or unavailability, even under immense transaction loads.

Establish verifiable agent identity and per-action authorization for advanced agentic workloads.

Align our trust context model with emerging industry standards and AWS, while pioneering secure-by-default platforms and AI-native onboarding.

Drive architectural guidance, set engineering standards through designs and reference implementations, and mentor engineers and leaders.

A minimum of 10 years of professional software development experience, excluding internships.

Strong proficiency in object-oriented design principles, data structures, and algorithms.

Experience designing and building large-scale, multi-tiered distributed systems, particularly within a Service Oriented Architecture (SOA) environment, is highly desirable.

Proven ability to lead complex technical initiatives, influence technical direction across organizations, and mentor technical talent.