Expedia

Application Security Engineer III

Expedia
Apply
8 days ago

Responsibilities

  • Drive shift-left security practices and embed security requirements and controls throughout the software development lifecycle.
  • Integrate, maintain, and improve security tooling and automation across CI/CD pipelines, including SAST, DAST, SCA, dependency scanning, and software supply chain protections.
  • Configure, tune, and triage security tools and vulnerability management platforms to reduce false positives and improve developer remediation workflows.
  • Partner with product, engineering, platform, privacy, compliance, infrastructure, and security stakeholders to identify and remediate application security risks.
  • Conduct threat modeling, security code reviews, and system design reviews covering low-level design, API design, and data modeling.
  • Operate AI/ML-enabled security solutions and apply AI/ML concepts to real-world products.
  • Apply AI/ML and agentic AI techniques to vulnerability management, including autonomous triage, prioritization, classification, and enrichment.
  • Enable developers through secure development guidance, standards, and playbooks while influencing secure engineering decisions.
  • Reduce vulnerability backlogs and improve remediation SLAs through automation, tool tuning, and data-driven operational improvements.

Requirements

  • Bachelor’s degree in Computer Science or a related technical field, or equivalent related professional experience.
  • At least 5 years of relevant professional experience.
  • Experience in application security, product security, DevSecOps, or security engineering supporting modern CI/CD pipelines, cloud-native services, and secure software delivery across multiple services or domains.
  • Experience with software supply chain security, including SBOMs, signing or attestation, secure build pipelines, SAST, DAST, and SCA.
  • Experience operating and tuning vulnerability management and security tooling platforms and integrating them with CI/CD pipelines, ticketing systems, and developer workflows.
  • Experience using modern programming languages such as Java or Python to automate security outcomes.
  • Preferred experience applying AI/ML and agentic AI techniques to vulnerability management and AI-assisted security tooling.
  • Familiarity with AI-driven systems, AI/ML security implications such as the OWASP LLM Top 10, and basic penetration testing concepts.
  • Demonstrated ability to enable developers and influence secure engineering decisions through practical guidance, standards, and playbooks.
  • Strong communication, judgment, and ambiguity-navigation skills, with the ability to explain complex security topics to technical and non-security audiences.
  • Proven success improving vulnerability remediation effectiveness, remediation SLAs, and signal-to-noise ratios.

Benefits

  • Medical, dental, and vision coverage.
  • Paid time off and an Employee Assistance Program.
  • Wellness and travel reimbursement.
  • Travel discounts and International Airlines Travel Agent Network (IATAN) membership.
  • The position is based in Seattle; compensation varies based on location, budget, and qualifications.
  • Expedia Group provides recruiting accommodations for applicants with disabilities.

Tech Stack

GitHub ActionsJavaJenkinsPythonSpinnaker

Categories

Expedia

About Expedia

10,000+ employees

Expedia Group builds a global online travel marketplace where consumers book flights, hotels, vacation rentals, cars, and activities, and partners distribute and market inventory across its platform. It monetizes through commissions, merchant/agency models, and advertising via brands including Expedia, Hotels.com, and Vrbo. Founded in 1996 and headquartered in Seattle, the public company (NASDAQ: EXPE) serves travelers and partners in more than 70 countries with B2C, B2B, and ad tech offerings.

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