Senior Security Engineer, Proactive Security
Location
Seattle, WA
Job Type
Full-time
Category
other-general
Posted
June 20, 2026
Description
The Senior Security Engineer is a senior individual contributor responsible for independently driving security initiatives across multiple services and teams. This role requires deep technical expertise in application security, threat modeling, and secure system design, combined with the ability to influence engineering teams and deliver high-impact security outcomes with minimal guidance.
Key job responsibilities
Security Reviews & Assessments: Lead end-to-end security reviews for complex, high-priority services including design reviews, threat modeling, and penetration testing scoping and readout
Technical Leadership: Serve as a subject matter expert for assigned affinity teams, providing architectural guidance and security consultation to service teams throughout the development lifecycle
Threat Modeling: Independently perform and guide threat modeling exercises for complex distributed systems, identifying risks and recommending mitigations
Manual...
The Senior Security Engineer is a senior individual contributor responsible for independently driving security initiatives across multiple services and teams. This role requires deep technical expertise in application security, threat modeling, and secure system design, combined with the ability to influence engineering teams and deliver high-impact security outcomes with minimal guidance.
Key job responsibilities
Security Reviews & Assessments: Lead end-to-end security reviews for complex, high-priority services including design reviews, threat modeling, and penetration testing scoping and readout
Technical Leadership: Serve as a subject matter expert for assigned affinity teams, providing architectural guidance and security consultation to service teams throughout the development lifecycle
Threat Modeling: Independently perform and guide threat modeling exercises for complex distributed systems, identifying risks and recommending mitigations
Manual...