Senior Cloud Security Engineer; AWS

About Tripadvisor The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel guidance, and two-sided marketplaces for experiences, accommodations, restaurants, and other travel categories. The subsidiaries of Tripadvisor, Inc. (Nasdaq: TRIP), include a portfolio of travel brands and businesses, including Tripadvisor, Viator, and The Fork.

We are looking for a hands‑on Senior Cloud Security Engineer to be the first line of defense for the Tripadvisor Experiences platform. This is a critical role that blends proactive security engineering with reactive incident response. You will live and breathe in our product’s cloud environment, monitoring for threats, responding to security incidents, automating defenses, and working closely with our engineering teams to build a more resilient platform.

• Monitor, analyze, and investigate security alerts originating from our AWS infrastructure, application logs, and security tooling (WAF, SIEM, Cloud-Native tools).
• Lead the response to security incidents that directly impact the Tripadvisor Experiences application, such as potential data breaches, application-layer attacks, or infrastructure compromises.
• Manage and triage vulnerabilities reported through our bug bounty program and other external sources.

• Build and maintain security monitoring and alerting capabilities within our production environment.
• Automate security operations tasks using scripting languages like Python or Go to improve our detection and response times.
• Configure, tune, and manage security tools like our Web Application Firewall (WAF), AWS Guard Duty, and Security Hub.

• Operationalize findings from application security tools (SAST, DAST, SCA) by working with engineering teams to prioritize and remediate vulnerabilities in our codebase and dependencies.
• Conduct threat modeling for new features to identify and mitigate risks before they reach production.
• Act as a security subject‑matter expert for our product and engineering teams, providing guidance on secure coding practices and architecture.

• AWS Security Operations:
  Deep, hands‑on experience securing a production environment in AWS. You must be comfortable with its core security services (e.g., Guard Duty, Security Hub, WAF, Cloud Trail).
• AWS Cloud Infrastructure:
  Comprehensive understanding of core AWS services beyond just security tools (e.g., VPC networking, EC2, RDS, S3, Lambda, EKS). You must be capable of understanding and spinning up a full infrastructure stack to effectively secure it.
• Infrastructure as Code:
  Strong proficiency with Terraform for managing and securing cloud infrastructure. You should be able to read, write, and review Terraform code, ensuring that the infrastructure you define is secure by design.
• Incident Response:
  Proven experience managing the full lifecycle of security incidents, from initial detection and analysis to containment, remediation, and post‑mortem.
• Scripting for Automation:
  Proficiency in at least one scripting language (e.g., Python, Go, Bash) to automate security operations and analysis tasks.
• Application Security Fundamentals: A solid understanding of common web application vulnerabilities (OWASP Top 10) and how to defend against them.
• Demonstrated ability to use AI tools to improve efficiency, quality, and decision‑making in day‑to‑day work.
• Proven ability to operate effectively with a global‑first mindset.

• Competitive compensation packages (routinely benchmarked against the latest industry data), including base salary and annual bonuses.
• ‘Work your way’ with flexibility to suit your lifestyle. Tripadvisor Group takes a remote‑friendly approach to collaboration across a worldwide team, with the option to join on‑site as often as you’d like or as required by your team.
• Flexible schedule. Work‑life balance is ingrained in our culture by design. Trust and…