Senior Security Architect — IaC, Threat Modeling, Global Ops

Amazon.com Services LLC; Herndon (VA); On-site; USD 140,000 - 210,000; Full time

Job summary

Amazon Optics is seeking a Security Engineer III to own the security posture of distributed systems across AWS data centers and corporate facilities worldwide. You will design and validate security controls for fleet-scale operations, build threat models, and champion secure, scalable solutions in a fast-moving environment.

The role involves leading security reviews, driving investigations, mentoring engineers, and collaborating with partner teams to balance risk with business velocity while

Responsibilities

• Lead security architecture reviews and threat modeling for services deployed across all AWS regions in a fully Infrastructure as Code environment, identifying one-way-door technical decisions and advocating for the right long-term solutions
• Design and implement security controls that centralize protections across the platform rather than requiring individual service teams to solve independently
• Construct security frameworks, runbooks, and rubrics for new problem domains that enable repeatable, scalable security outcomes across the organization
• Drive security investigations, escalation handling, and root-cause analysis through COE processes, ensuring systemic issues are permanently resolved
• Review code and architecture produced by engineering peers to ensure secure design, least privilege, proper authentication/authorization, and safe data handling
• Influence security decisions across partner organizations by balancing risk trade-offs with business velocity and identifying pragmatic compensating controls
• Mentor and develop security engineers on the team, contributing to hiring assessments, promotion evaluations, and career guidance

Job description

Amazon Optics is seeking a Security Engineer III to own the security posture of distributed systems across AWS data centers and corporate facilities worldwide. You will design and validate security controls for fleet-scale operations, build threat models, and champion secure, scalable solutions in a fast-moving environment.

The role involves leading security reviews, driving investigations, mentoring engineers, and collaborating with partner teams to balance risk with business velocity while