Plaid
Senior Product Security Engineer
$190K–$263K
Seattle Office +2 · Hybrid · Senior · Full-time · Posted Oct 15, 2026
- Location
- Seattle Office
San Francisco HQ
New York City Office - Experience
- 5+ years in product or application security.
About the job
Leads product security reviews and develops preventive security practices to help Plaid teams identify and reduce risks in products from design through launch.
What you'll do
- Lead security architecture reviews, threat modeling, and technical assessments of products, applications, APIs, and distributed systems.
- Review code, investigate vulnerabilities, validate fixes, and work with teams to prioritize and track mitigations.
- Develop reusable security requirements and controls, and use AI-assisted analysis and testing to improve assessments.
What they ask for
- 5+ years of experience in product or application security.
- Experience leading security design reviews and threat modeling for complex applications, APIs, or distributed systems.
- Strong knowledge of application security, including authentication, authorization, trust boundaries, and sensitive data protection.
- Software engineering fundamentals, including reading code and evaluating vulnerabilities and fixes; experience assessing cloud-native application risks.
Nice to have
- Experience securing AI-powered applications or agentic systems.
- Experience with penetration testing, vulnerability research, complex business-logic testing, or financial technology security.
Pay
$190K – $262.8K (base salary; currency not stated)
Tools
AI
AI focus
Assess security implications of AI-powered applications and agentic workflows, and use AI-assisted security analysis and testing.
Model-written summary · the original posting is authoritative