Network Security Engineer; Imperva​/Zscaler​/Palo Alto

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Network Security Engineer (Imperva / Zscaler / Palo Alto)

Dallas, TX (Onsite)

Contract

Option 1 - Zscaler + Imperva

Option 2 - Palo Alto + Zscaler

Security Specialist will be responsible for managing and optimizing our Imperva delivery and security services. This role requires a deep understanding of Imperva content delivery network (CDN) and security solutions, including web application firewalls (WAF), bot management, and DDoS protection. The ideal candidate will have a strong background in web technologies, network security, and performance optimization.

• Manage and configure Cloud delivery and security services to ensure optimal performance and security.
• Configure and manage Bot Manager Premier and Account Protector to mitigate bot attacks and account takeover attempts.
• Conduct risk assessments across multiple web and mobile applications, integrating in-browser protection tools to guard against client-side attacks.
• Monitor and analyze traffic patterns to identify and mitigate potential threats.
• Collaborate with development and operations teams to optimize content delivery and improve website performance.
• Perform regular updates of site shield IPs and configure pragma header stripping rules to manage application security at the network layer.
• Implement various caching and compression rules to enhance web application performance.
• Integrate Imperva SDK to protect mobile applications from bot attacks.
• Engage with Subject Matter Experts and other Risk Management team members to gather information and complete projects on time.
• Document and communicate security incidents and vulnerabilities to internal teams, management, and vendors.
• Act as a primary point of contact for security operations, responding to and mitigating security incidents as part of the Security Operations Center (SOC).
• Maintain and update detailed knowledge of the IT security industry, including awareness of new or revised security solutions, improved security processes, and emerging threats and vulnerabilities.
• Manage and configure Imperva delivery and security services to ensure optimal performance and security.
• Monitor and analyze traffic patterns to identify and mitigate potential threats, with a focus on dealing with bot attacks using Bot Manager Premier and Account Protector Control.
• Implement and maintain Imperva Web Application Firewall (WAF) rules and policies.
• Collaborate with development and operations teams to optimize content delivery and improve website performance.
• Troubleshoot and resolve issues related to Imperva services.
• Stay up to date with the latest trends and best practices in CDN and web security.
• Provide technical support and guidance to internal teams and clients regarding Imperva services.
• Develop and maintain documentation related to Imperva configurations, processes, and procedures.
• Respond to high priority on-call engagements within 15 minutes in a rotation one out of every 4 weeks. Should be flexible to work for Canada customers.

• Bachelor’s degree in computer science, Information Technology, or a related field.
• 8+ years’ experience implementing and maintaining Imperva Web Application Firewall (WAF) rules and policies.
• 3+ years’ experience troubleshooting and maintaining other network appliances (switches, routers, firewalls, proxies, etc).
• 3+ years’ experience automating network infrastructure tasks.
• 3+ years supporting cloud native applications in Azure, Google Cloud Platform, or AWS.
• Advanced knowledge of HTTP, SSL/TLS encryption, DNS, switching and routing, and Application Security, mitigating OWASP top 10 security threats.
• Proven experience with Imperva delivery and security services.
• Strong understanding of CDN architecture and web performance optimization.
• Expertise in Imperva WAF, bot management, and DDoS protection.
• Experience with web technologies such as HTML, CSS, JavaScript, and web servers.
• Knowledge of network protocols and security best practices.
• Excellent problem-solving and analytical skills.
• Strong communication and interpersonal skills.
• Ability to work independently and as part of a team.