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# Network Security Engineer

- **Company:** Siri InfoSolutions Inc
- **Location:** Plano, TX, United States
- **Experience:** Expert
- **Salary:** $120,000.0 - $135,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Access, User Authentication, Border Gateway Protocol, Computer Networks, Dynamic Host Configuration Protocol, Software Debugging, Domain Name System (DNS), Intrusion Detection and Prevention, IP Address Management, Python (Programming Language), Network Security, Network Troubleshooting, Networking Basics, Open Shortest Path First (OSPF), Ansible, BIG-IP Global Traffic Manager (GTM), Software Deployment, TCP/IP, Wireshark, Virtual Local Area Networks, Web Traffics, SSL Certificate Management, Scripting, Load Balancing, System Availability, BIG-IP Local Traffic Manager (LTM), Firewalls (Computer Science), Information Technology, Palo Alto Networks, Big Ip
- **Published:** August 18, 2026
- **Apply:** https://www.careerjet.com/jobad/usd0ce06963f65c51fe80deb9da86f8b9e

## About the Role

Must 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 Competencies
Troubleshooting: 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 & Certifications
Bachelor's degree in computer science, Information Technology, or equivalent experience.

## Description

F5 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.
Base Salary Range : $120,000 to $135,000 Per Annum, Network Security Engineer Plano, TX 10 - 15 years of experience Job Description Must Have Technical/Functional Skills Experience: 10 years in network security engineering…

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