Sr. Security Engineer, WAF

Warner Bros Discovery Inc•Silver Spring, MD

69d•Hybrid

About The Position

As a Senior WAF Security Engineer - Edge/Perimeter, the ideal candidate is expected to: Implement, configure, and maintain enterprise-grade WAF and DDoS protections across a large portfolio of properties. Develop and fine-tune custom firewall rules, bot mitigation controls, and DDoS mitigation security policies. Perform log analysis to identify malicious traffic patterns, false positives, and opportunities for tuning. Contribute to automation efforts (infrastructure as code, CI/CD integrations, scripts) to deploy and maintain security configurations. Identify security vulnerabilities and guide developers and engineers in addressing these issues Participate in on-call rotation as a subject matter expert for WAF/DDoS incident response. Partner with product, engineering, and operations teams to integrate WAF/Edge security controls into applications and services. Provide technical guidance on perimeter security best practices within SDLC and cloud-native environments. Research and stay current on the latest attack vectors, vulnerabilities, and exploits affecting web and API applications. Recommend and implement improvements to strengthen defenses across the edge/perimeter layer.

Requirements

Bachelor's degree in Computer Science, Information Security, or equivalent work experience.
5+ years of experience in application or network security with direct hands-on work in WAF/DDoS solutions.
Detailed understanding of the threats faced directly to consumer and digital platform organizations.
Proven expertise with at least one major WAF platform (Akamai, Fastly NGWAF, AWS WAF, Azure, or similar).
Practical experience writing/modifying WAF rules (e.g., AWS WAF, Azure or Cloudflare custom rules).
Strong understanding of HTTP/S protocols, OWASP Top 10, and API security models.
Proficiency with log analysis tools, scripting (Python, Bash, PowerShell), and automation frameworks.
Proven hands-on experience securing application across various Cloud Providers (AWS, GCP, Azure)
Strong problem-solving skills with the ability to quickly analyze issues and implement effective mitigations.
Excellent collaboration and communication skills across security, engineering, and product teams.

Nice To Haves

Security certifications - CISSP, CISM, CISA, SANS, etc. Is a plus
Experience with infrastructure-as-code (Terraform, CloudFormation) for WAF/DDoS deployment.
Familiarity with CDN integrations and API Security frameworks
Exposure to DDoS mitigation at scale, including volumetric and application-layer attacks.

Responsibilities

Implement, configure, and maintain WAF/DDoS solutions.
Develop and tune custom firewall rules, bot mitigation, and DDoS protections.
Perform log and traffic analysis to identify malicious activity and optimize defenses.
Partner with product, engineering, and operations teams to integrate WAF/Edge security into applications and services.
Provide guidance on best practices and support cross-team adoption of WAF/DDoS protections.
Advise technology teams and management of identified risks and treatment options.
Define or revise security elements, standards, and solutions for various technologies to achieve optimal security posture while delivering on business goals
Research emerging threats and adapt defenses.
Recommend enhancements to strengthen edge / WAF posture.
Contribute to automation and infrastructure-as-code efforts to scale deployments.
Participate in Tentpole and product/feature launches in a WAF support role
Incident Response - Serve as an escalation point during WAF/DDoS incidents.
Participate in on-call rotation to provide subject matter expertise in real-time investigations and mitigation.