Security Engineer, Web Application Security

Yum! Brands is seeking a Security Engineer to join its Cybersecurity Engineering organization and protect web applications and APIs supporting its global digital ecosystem. The role focuses on operating and improving WAF, CDN, API security, and digital certificate management services, while supporting security investigations, incident response, automation, application onboarding, and compliance activities.

Responsibilities:

• Configure, maintain, and support Web Application Firewall (WAF) protections using Akamai App & API Protector and related security technologies
• Monitor and investigate web security events involving:
  • OWASP Top 10 vulnerabilities
  • API attacks
  • Bot traffic
  • Credential stuffing
  • DDoS attacks
  • Layer 7 attacks
  • Other suspicious or malicious web traffic
• Assist with WAF policy tuning to reduce false positives while maintaining appropriate security protections
• Review application traffic and security logs to identify attack patterns, application behavior, and potential security concerns
• Implement approved WAF policy changes, exceptions, allowlists, and security configuration updates
• Support senior engineers during complex security investigations and production incidents
• Configure and maintain CDN and edge security configurations supporting internet-facing applications
• Work with Akamai technologies including:
  • Property Manager
  • Edge Hostnames
  • Cloudlets
  • DNS integrations
  • Origin connectivity
  • Caching and delivery configurations
• Troubleshoot common CDN and web application issues involving:
  • HTTP response codes
  • Cache behavior
  • DNS
  • Routing
  • Origin connectivity
  • TLS/SSL
  • Application availability
• Support the onboarding of new websites and APIs onto the enterprise WAF/CDN platform
• Perform pre-production validation, testing, and post-change verification
• Support the lifecycle management of public TLS certificates, including:
  • Request validation
  • Issuance
  • Deployment
  • Renewal
  • Revocation
  • Replacement
• Monitor certificate inventories and upcoming expiration dates
• Coordinate certificate changes and renewals with application owners and other technical teams
• Validate certificates after deployment and troubleshoot common certificate, trust chain, DNS validation, and TLS issues
• Maintain accurate certificate ownership and lifecycle documentation
• Escalate certificate risks or renewal issues before they can impact production applications
• Monitor and investigate WAF alerts, application issues, and security events
• Analyze HTTP requests, response codes, headers, WAF logs, CDN logs, and other available telemetry to assist with troubleshooting and investigations
• Participate in incident response activities involving WAF, CDN, DDoS, certificates, and internet-facing applications
• Assist with troubleshooting customer-impacting production issues and determining whether issues originate from the security/CDN layer or another application component
• Implement approved mitigations and validate application functionality following security changes
• Follow established incident management, escalation, and change management processes
• Participate in the team's on-call rotation supporting globally distributed applications and services
• Identify repetitive operational activities that could benefit from automation
• Develop and maintain basic scripts and tools using technologies such as Python, PowerShell, Bash, or REST APIs
• Assist with improving security monitoring, reporting, inventory management, and operational dashboards
• Contribute to automation and standardization of application onboarding, WAF configuration, and certificate management processes
• Learn and adopt Infrastructure-as-Code and API-driven security management practices where appropriate
• Work closely with:
  • Software Engineering
  • Cloud Engineering
  • Networking
  • Infrastructure
  • IAM
  • Enterprise Architecture
  • Compliance
  • Security Operations
• Partner with application teams during WAF/CDN onboarding, troubleshooting, security changes, and certificate activities
• Participate in technical discussions and architecture reviews alongside senior engineers
• Create and maintain technical documentation, troubleshooting guides, operational procedures, and runbooks
• Share knowledge and lessons learned with other members of the team
• Identify opportunities to improve existing processes and operational practices
• Follow established security standards, change management procedures, and operational processes
• Support PCI DSS and internal audit activities by gathering technical evidence and documentation
• Assist with periodic security reviews and control assessments
• Maintain accurate documentation for WAF configurations, certificates, application ownership, exceptions, and operational processes
• Support remediation activities identified through audits, vulnerability assessments, penetration testing, and security reviews

Requirements:

• Bachelor's degree in Computer Science, Cybersecurity, Information Technology, or equivalent education and/or professional experience
• 2–4+ years of experience in cybersecurity, networking, infrastructure, cloud engineering, application support, or a related technical field
• Foundational understanding of:
  • HTTP/HTTPS
  • TLS/SSL
  • DNS
  • TCP/IP
  • Web applications
  • REST APIs
  • Reverse proxies and CDN concepts
• Familiarity with Web Application Firewall technologies or web application security concepts
• Familiarity with common web security threats and the OWASP Top 10
• Experience troubleshooting technical issues using logs and other diagnostic information
• Ability to analyze technical problems and follow issues through resolution
• Strong written and verbal communication skills
• Ability and willingness to learn new security technologies and platforms
• Hands-on experience with Akamai or similar WAF/CDN platforms
• Experience with Akamai technologies such as:
  • App & API Protector
  • Property Manager
  • Certificate Manager
  • Edge DNS
  • Cloudlets
  • Bot Manager
• Experience with public TLS certificate management
• Experience working with cloud environments such as AWS, Azure, or GCP
• Experience with SIEM or log analysis platforms such as Splunk, Sentinel, or similar technologies
• Basic scripting experience with Python, PowerShell, or Bash
• Experience working with REST APIs
• Familiarity with Git, Infrastructure-as-Code, or other DevOps practices
• Security certifications such as Security+, GSEC, Akamai certifications, or equivalent technical certifications