Security Engineer (Threat Modeling)

Title: Security Engineer – Engineering Security

Location: Seattle, WA (Preferred) / Sunnyvale, CA – Onsite

Qualifications

• 8+ years of professional experience in security engineering, application security, product security, offensive security, systems architecture, or a related technical security field.
• Demonstrated experience reviewing complex technical designs and identifying security risks in applications, APIs, cloud services, microservices, or distributed systems.
• Strong knowledge of threat modelling, vulnerability classification, risk modelling, authentication/authorization, least privilege, and data protection principles.
• Hands-on experience with security testing, vulnerability investigation, penetration/adversarial testing, or validating security controls.
• Ability to communicate technical findings clearly and collaborate directly with engineering, security, privacy, and third-party stakeholders.
• Preferred qualifications include experience assessing AI/LLM agents, prompt injection and unsafe tool use, privacy design reviews, cloud environments, and security automation using Python, Go, Bash, or similar languages.