Senior Product Security Engineer

Plaid

. Lead security architecture and design reviews for high-priority Plaid products from early development through launch .

Posted 10/15/2026full-timeSeattle • Washington • United StatesSenior💰 $190,000 - $262,800 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates strong expertise in secure architecture and application security, with a focus on threat modeling, risk assessment, and vulnerability analysis. Capable of leading security design reviews and collaborating with engineering teams to implement effective security measures.

Highest-signal resume keywords

Secure ArchitectureThreat ModelingApplication Security FundamentalsTechnical Risk AssessmentVulnerability Analysis

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Security Design ReviewsAuthenticationAuthorizationSensitive Data ProtectionCloud-Native SecurityPenetration TestingVulnerability ResearchSecurity TestingApplication Code ReviewAI-Powered Application Security

Soft Skills

Communication of Security RisksCollaboration Across TeamsIndependent Operation in Ambiguous Environments

Industry Keywords

Financial TechnologyRegulated DataComplex ApplicationsDistributed SystemsBusiness Logic

Tech Stack

Tools & technologies

CloudDistributed Systems

About the role

Key responsibilities & impact

Lead security architecture and design reviews for high-priority Plaid products from early development through launch
Conduct threat modeling and technical security assessments of complex applications, APIs, distributed systems, and product workflows
Evaluate authentication, authorization, trust boundaries, sensitive data flows, and business logic for vulnerabilities and abuse cases
Review application code, investigate security weaknesses, and validate proposed fixes
Assess security implications of new technologies and product capabilities, including AI-powered applications and agentic workflows
Partner with engineering leadership to prioritize security risks, agree on mitigations, and track remediation or approved risk acceptance
Identify recurring security weaknesses and define reusable security requirements and secure design patterns
Partner with engineering teams to implement preventive controls
Leverage AI-assisted security analysis and testing to improve security assessments and validate security assumptions

Requirements

What you’ll need

5+ years of experience in product or application security
Strong expertise in secure architecture, application security fundamentals, and technical risk assessment
Experience leading security design reviews and threat modeling for complex applications, APIs, or distributed systems
Deep understanding of authentication, authorization, trust boundaries, sensitive data protection, and common application security vulnerabilities
Strong software engineering fundamentals, including ability to read application code, analyze vulnerability paths, and evaluate security fixes
Experience assessing security risks in cloud-native applications
Ability to communicate complex security risks, recommend practical mitigations, and influence engineering and product leadership
Ability to operate independently in ambiguous environments and collaborate effectively across teams
Experience securing AI-powered applications or agentic systems (nice to have)
Experience with penetration testing, vulnerability research, or security testing of complex business logic (nice to have)
Experience securing financial technology products or systems handling sensitive or regulated data (nice to have)

Benefits

Comp & perks

Equity and/or commission compensation, dependent on the position offered
Comprehensive medical, dental, and vision benefits
401(k) plan