Sr Systems Dev Engineer, Amazon Foundational Security Services

Amazon • Seattle, WA

1d

About The Position

Amazon Foundational Security Services (AFSS) is seeking a Sr Systems Engineer to
join our Identity and Access Management team, where you'll build and maintain
the automation and infrastructure that powers Amazon's Microsoft Entra ID
environment at unprecedented scale. In this role, you'll implement application
registration, approval, and deployment processes, manage conditional access
policies across multiple tenants, and develop configuration-as-code frameworks
that enable hundreds of thousands of users to securely access Microsoft 365,
Azure, and integrated cloud services worldwide.

As a Sr Systems Engineer, you'll implement systems that handle application
registration workflows from request through approval to deployment, ensuring
secure and compliant integrations with Entra ID. You'll execute conditional
access policy lifecycles including creation, testing, deployment, and ongoing
maintenance across enterprise tenants, build infrastructure-as-code solutions
for deploying identity configurations with version control and automated
testing, and develop self-service portals that streamline app registration
requests while maintaining security standards. Your work will include
implementing automated approval workflows, managing service principal
lifecycles, handling API permission grants and certificate management, and
creating observability platforms that provide real-time visibility into
registration status, policy enforcement, and tenant health.

You'll leverage your security expertise to assess vulnerabilities and
misconfigurations across our identity infrastructure, working with Cloud
Security Posture Management (CSPM) tools such as Wiz, CrowdStrike, and similar
platforms to identify and remediate security risks. You'll analyze vulnerability
scan results, prioritize remediation efforts based on risk assessment, and
implement security controls that address identified gaps while maintaining
operational efficiency. Your familiarity with CSPM platforms will enable you to
proactively identify security issues in Entra ID configurations, service
principal permissions, and conditional access policies before they become
vulnerabilities.

You'll collaborate with business leaders and service teams to understand their
Azure and Entra integration requirements, guide them through the app
registration and approval process, and build secure solutions that meet their
needs while maintaining compliance with security policies. You'll work closely
with application teams to troubleshoot integration issues, refine conditional
access policies based on business requirements, and partner with infrastructure
teams to ensure identity services meet strict security and availability SLAs.
This is a high-impact opportunity where you'll build systems that directly
impact thousands of developers and teams company-wide, working with massive data
sets and seeing all aspects of the Amazon business—from Retail websites to
digital products to the inner workings of Amazon Web Services.

Requirements

• 5+ years of systems design, software development, operations, automation, and process improvement experience
• 5+ years of programming with at least one modern language such as C++, C#, Java, Python, Golang, PowerShell, Ruby experience
• Experience with CI/CD pipelines build processes
• Bachelor's degree in a relevant field or equivalent work experience
• Experience with Microsoft technologies such as Entra ID, Azure, app registration, or Conditional Access (CA) policies

Nice To Haves

• Experience with distributed systems at scale

Responsibilities

• Implement end-to-end application registration, approval, and deployment workflows for Entra ID, including service principal creation, API permission grants, and certificate management
• Manage conditional access policy lifecycles across multiple tenants using configuration-as-code frameworks, including policy creation, testing, deployment, and ongoing maintenance
• Build self-service automation and portals that streamline app registration requests while maintaining security standards, approval workflows, and audit trails
• Develop CI/CD pipelines and infrastructure-as-code solutions for deploying identity configurations with automated testing, validation, and consistent security baselines
• Collaborate with business leaders and service teams to build secure Azure and Entra integrations, guide them through registration processes, and create observability platforms for tenant health monitoring

Benefits

• 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
• parental leave

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level