✦ Luna Orbit — Cybersecurity

Product Security Architect III

at Expedia Group

📍 3 Locations Unknown 💰 $146K – $204K USD / year Posted April 17, 2026
Salary $146K – $204K USD / year
Type Not Specified
Experience senior
Exp. Years Not specified
Education Not specified
Category Cybersecurity

Lead product security architecture for Expedia Group by defining secure-by-design patterns and reference designs. Partner with product, engineering, and infrastructure teams to run threat modeling, design reviews, and risk assessments, while guiding secure implementation of application security controls and AI/ML-enabled solutions.

  • Define and evolve security architecture patterns, standards, and reference designs for secure-by-design
  • Lead threat modeling, security design reviews, and risk assessments for complex initiatives
  • Partner on secure system architectures including API design, low-level design (LLD), and data models
  • Provide technical leadership on application security controls (authentication, authorization, encryption, key management, secrets handling)
  • Guide teams in safely integrating and operating AI/MLenabled and AI-driven solutions to improve security outcomes

Own security architecture standards across multiple platforms and services, including API design, low-level design (LLD), and data models. Provide technical leadership for authentication, authorization, encryption, key management, and secrets handling, and guide safe integration of AI/ML-enabled and AI-driven workflows.

The ideal candidate is a senior product security architect who can define secure-by-design architecture patterns and lead threat modeling, security design reviews, and risk assessments. They have hands-on expertise in application security controls including authentication, authorization, encryption, key management, and secrets handling, and can guide teams integrating AI/ML-enabled solutions safely.

threat modelingsecurity design reviewsrisk assessmentssecure-by-design product architectureapplication security controls (authenticationauthorizationencryptionkey managementsecrets handling)security assessments
security architecture patternssecurity architecture standardsreference designssecure-by-designsecurity assessmentsthreat modelingcontinuous verification of security requirementssecurity design reviewsrisk assessmentsAPI designlow-level design (LLD)data modelsauthenticationauthorizationencryptionkey managementsecrets handlingapplication security controlsAI/MLenabled solutions integrationAI-driven solutions security guidance
security architecture patternssecurity architecture standardsreference designssecure-by-design product developmentsecurity assessmentsthreat modelingcontinuous verification of security requirementssecurity design reviewsrisk assessmentsAPI designlow-level design (LLD)data modelsapplication security controlsauthenticationauthorizationencryptionkey managementsecrets handlingsecure system architecturesecurity and privacy by designAI/MLenabled solutions integration guidanceAI-driven solutions security guidanceAI/ML concepts applied to security and product outcomes
technical leadershipcross-functional partnershipinfluencing roadmap decisionspragmatic security decision-makingcommunication of security requirements into engineering guidancecollaboration with product and engineering teams
Industry SaaS
Job Function Architect and operationalize product security through secure-by-design standards, threat modeling, and application security control guidance.
Role Subtype Security Architect
Tech Domains Cybersecurity, AI & Machine Learning
Product Security Architect IIIProduct Security Architecture teamsecure-by-designsecurity architecture patternssecurity architecture standardsreference designssecurity assessmentsthreat modelingcontinuous verification of security requirementssecurity design reviewsrisk assessmentsAPI designlow-level design (LLD)data modelsauthenticationauthorizationencryptionkey managementsecrets handlingAI/MLenabledAI-driven solutionsapplication security controlssecurity postureoperational velocityProduct Security Architect

Must demonstrate experience leading threat modeling and security design reviews, Must demonstrate application security controls expertise (authentication, authorization, encryption, key management, secrets handling)

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