Network Security Engineer

Network Security EngineerLocation: Plano, TX – OnsiteFulltimeJob DescriptionMust Have Technical/Functional Skills• Experience: 10 years in network security engineering, application delivery, or similar roles.• Infoblox: Hands-on experience with Infoblox DDI/IPAM administration.• Zscaler: Deep knowledge of Zscaler ZIA, ZPA, PAC files, and DLP engines.• F5: Proficiency in F5 BIG-IP LTM/GTM administration, including iRules and SSL certificate management.• Firewalling: Strong experience with Palo Alto Networks firewalls (Palo Alto experience preferred).• Networking Fundamentals: In-depth knowledge of TCP/IP, BGP, OSPF, VLANs, and DNS.• Automation: Familiarity with scripting languages (Python/Ansible) to streamline operations.Core CompetenciesTroubleshooting: Expert analytical skills for debugging complex traffic, authentication, and network issues using Wireshark.Collaboration: Ability to work with cross-functional teams to align network security with business objectives.Communication: Strong written and verbal skills for creating procedures and reporting to stakeholders.Education & CertificationsBachelor's degree in computer science, Information Technology, or equivalent experience.Roles & ResponsibilitiesF5 Load Balancing & Application Delivery: Design, configure, and troubleshoot F5 BIG-IP LTM (Local Traffic Manager) and GTM (Global Traffic Manager) to ensure high availability, security, and performance of critical applications.Zscaler Security Suite (SASE): Implement and manage Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA) to secure user access and enforce policies for web traffic and private applications.Infoblox DDI Management: Deploy and manage Infoblox DNS, DHCP, and IP Address Management (IPAM) solutions. Responsible for core network functionality.Firewall & Security Policy: Configure and manage enterprise firewalls (e.g., Palo Alto Networks) to enforce network security policies, including NAT, zone-based firewalling, and threat prevention.Operational Excellence: Administer PAC files for proxy traffic routing, maintain SSL inspection policies, and troubleshoot network traffic flows.Documentation & Compliance: Create and maintain network documentation, including diagrams, configurations, and change management procedures, ensuring audit readiness.