Senior Software Engineer, Amazon Foundational Security Services - Identity

Do you want to own Identity systems that major AWS and Stores services depends on to exist and the layers that make that data consumable by every service that needs it? The LDAP Core and Switchboard teams are part of the AFSS Identity organization within Amazon's Foundational Security Services. We hold the records of engineering identity at Amazon, and we make that record reachable through modern access pattern.
LDAP Core operates the canonical engineering identity directory: the 389DS LDAP fleet, its global replication topology, and the regionalized architecture (REGAL) we are building to replace it by 2027. Switchboard builds the routing, temporal, analytical, and control layers that surround that directory the Read Proxy, Time Machine, the Identity Data Lake, and GSAM, the control plane for millions of system accounts across Amazon's engineering data planes.

Key job responsibilities
- Lead the REGAL regionalized architecture: read/write fleet split, Regal Replicator, and ORR through full partition coverage
- Own 389DS software lifecycle: upgrade train, master fleet replication, schema management across commercial, GovCloud, ADC, China, and MVP
- Drive pipeline-driven automated region builds, eliminating manual ceremony from partition expansion
- Lead schema evolution discipline: document every attribute, analyze consumer impact end-to-end before every change
- Architect and evolve the LDAP Read Proxy: schema-routed access, expansion to BRASS and additional backends, transparent to existing callers
- Own GSAM as the system-account control plane across LDAP, POSIX, ANT : lifecycle management, credential rotation, ANT auto-provisioning, and the path to passwordless system accounts
- Own LDAP Time Machine and the Identity Data Lake: snapshot pipelines, S3 vending, cross-region log analytics, and IdP security intelligence
- Set the observability standard across every access path -direct, proxied, historical, analytical, consistent telemetry, uniform authorization
- Serve as Tier-1 on-call anchor for directory availability and replication health
- Mentor engineers and raise the technical bar across both teams

A day in the life
You'll start by reviewing system metrics and addressing any operational issues affecting our Identity services. Throughout the day, you'll collaborate with Identity and Access Management service teams to design features, participate in architecture reviews for scalability improvements, and write high-performance code to handle authentication and authorization requests across Amazon's services. You'll also mentor team members through code reviews and contribute to strategic planning for next-generation identity systems.

About the team
Diverse Experiences
Amazon Security values diverse experiences. Even if you do not meet all of the 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.

Why Amazon Security?
At Amazon, security is central to maintaining customer trust and delivering delightful customer experiences. Our organization is responsible for creating and maintaining a high bar for security across all of Amazon’s products and services. We offer talented security professionals the chance to accelerate their careers with opportunities to build experience in a wide variety of areas including cloud, devices, retail, entertainment, healthcare, operations, and physical stores.

Inclusive Team Culture
In Amazon Security, it’s in our nature to learn and be curious. Ongoing DEI events and learning experiences inspire us to continue learning and to embrace our uniqueness. Addressing the toughest security challenges requires that we seek out and celebrate a diversity of ideas, perspectives, and voices.

Training & Career Growth
We’re continuously raising our performance bar as we strive to become Earth’s Best Employer. That’s why you’ll find endless knowledge-sharing, training, and other career-advancing resources here to help you develop into a better-rounded professional.
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 flexible work hours and arrangements are part of our culture. When we feel supported in the workplace and at home, there’s nothing we can’t achieve.

Basic Qualifications

- 5+ years of non-internship professional software development experience
- 5+ years of programming with at least one software programming language experience
- 5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
- Experience as a mentor, tech lead or leading an engineering team

Preferred Qualifications

- 5+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
- Bachelor's 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 https://amazon.jobs/content/en/how-we-hire/accommodations 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 https://amazon.jobs/en/benefits.

USA, WA, Seattle - 168,100.00 - 227,400.00 USD annually