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Sr. Software Development Engineer, AWS Proactive Security

Amazon - Seattle, Washington, USA

Posted Mar 19, 2026

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About this role

Sr. Software Development Engineer, AWS Proactive Security Seattle, Washington, USA AWS customers trust us with their most sensitive data. We're building cryptographic systems that enhance customer control over access to their data and metadata. You'll design and implement complex systems using Rust, PKI, formal verification, and distributed systems that strengthen customer data protection while maintaining operational efficiency at scale. You'll own multi-quarter initiatives from design through deployment, building systems that give customers verifiable control over who accessed their resources and when. Working as part of the Piezo team, you'll drive security outcomes across AWS service teams and influence technical direction at the organizational level. Your work will have CISO-level visibility and shape how tens of thousands of Amazon builders design and operate their services. You're a senior software engineer with deep expertise in distributed systems, security, and large-scale design. You deliver complex initiatives independently, make sound technical decisions with broad impact, and mentor engineers at multiple levels. You write exemplary code, conduct insightful code reviews that raise the quality bar, and debug complex issues across multiple systems. You communicate technical concepts clearly to diverse audiences and demonstrate leadership beyond assigned tasks. You influence technical direction and drive consensus on complex decisions. Key job responsibilities Design and implement cryptographic systems using Rust, formal verification, PKI, and distributed systems. Own multi-quarter initiatives from design through deployment. Drive technical decisions with broad impact across multiple teams. Conduct insightful code reviews that improve design quality. Debug complex issues across multiple systems. Mentor engineers at

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