Firewall & WAF Security Engineer — Network Defender

Tech Mirrors; Houston (TX); On-site; USD 90,000 - 140,000; Full time

Job summary

Tech Mirrors in Houston seeks an experienced Network Security Engineer specializing in Next Gen Firewall and Web Application Firewall security engineering. You will design, implement and troubleshoot security policies across client environments, collaborating with Security Architecture, DevOps and IT teams to meet policy standards.

The role requires hands-on experience with Next Gen Firewalls, WAFs, and cloud security, plus strong knowledge of OWASP Top 10.

Qualifications

• Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, or related field.
• 5+ years’ experience in cybersecurity.
• Hands‑on experience with Next Gen Firewalls and Web Application Firewalls.
• Hands‑on experience with network, OS, and application security.
• Experience tuning WAF rulesets, managing false positives, and maintaining policy hygiene.
• Experience with Azure cloud apps and services.
• In‑depth knowledge and experience with OWASP Top 10.
• Strong analytical skills and problem solving.

Responsibilities

• Manage day-to-day Next Gen firewall administration, including policy management, rule tuning, and health monitoring.
• Manage day-to-day WAF operations across API security, and DNS.
• Manage day-to-day Cloud WAF operations.
• Monitor platform health and maintain KPI reporting on coverage, rule effectiveness, and incident trends.
• Coordinate WAF zone migration, including DNS cutover, testing, and validation.
• Implement automation scripting to improve WAF Operations and Services.
• Develop dashboards and provide routine metrics data collection.
• Collaborate with Network Security, DevOps, and IT on changes, incidents, and project work.
• Maintain platform documentation, change records, and configuration baselines.
• Serve as the subject matter expert for web application firewall best practices, policies, and regulatory requirements.
• Provide support and assistance during internal and external audits.
• Interface with technical vendors regarding security issues and recommend solutions.
• Develop web application firewall security standards and architecture designs.

Skills

Next‑Gen Firewalls

Web Application Firewalls

Azure cloud

OWASP Top 10

API security

Education

Bachelor's degree in Cybersecurity/CS/IT

Tools

Azure

Job description

Tech Mirrors in Houston seeks an experienced Network Security Engineer specializing in Next Gen Firewall and Web Application Firewall security engineering. You will design, implement and troubleshoot security policies across client environments, collaborating with Security Architecture, DevOps and IT teams to meet policy standards.

The role requires hands-on experience with Next Gen Firewalls, WAFs, and cloud security, plus strong knowledge of OWASP Top 10.