Network Security

Houston, TX, US • Posted 3 hours ago • Updated 3 hours ago
Contract W2
Contract Independent
No Travel Required
On-site
$55/hr
Fitment

Dice Job Match Score™

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Job Details

Skills

  • Network Security Engineer
  • Zscaler
  • NAC
  • VPN
  • Python
  • Windows PowerShell
  • AWS
  • Azure
  • Aruba

Summary

Role: Network Security (L3)

Location: Houston, TX / Dallas, TX (Onsite)
Duration: 6+ Months


Job Summary

  • Manage day-to-day network security operations within the customer environment
  • Provide L3 support during critical outages and drive issues to resolution
  • Strong understanding of HTTP, HTTPS, DNS, TCP/IP

Key Responsibilities

  • Design and implement network security architecture, policies, and procedures
  • Expertise in:
    • Checkpoint Firewall (VPN, URL Filtering, IPS) & VPN (S2S, Remote Access)
    • Cloudflare (CDN, WAF, Bot Management, DDoS Protection)
    • Zscaler (ZIA, ZPA, ZDX) – policy design & troubleshooting
    • Aruba ClearPass (CPPM) – configuration, onboarding, profiling
    • RADIUS, TACACS+, 802.1X, EAP protocols
  • Troubleshoot:
    • Authentication issues (SAML, SCIM, Azure AD)
    • L2/L3 connectivity issues
    • TACACS+, latency, and access-related problems
  • Strong knowledge of ZTNA, Firewalls, IPSec/SSL VPNs
  • Perform packet analysis and automation (Python/PowerShell)
  • Maintain documentation aligned with NIST & CIS standards
  • Identify operational inefficiencies and implement improvements
  • Drive automation across network security environments

Technical Skills

  • Firewalls: Checkpoint
  • NAC: Aruba ClearPass
  • WAF/CDN: Cloudflare
  • Proxy: Zscaler (ZIA/ZPA/ZDX)
  • Email Security: Abnormal AI
  • Load Balancer: F5 BIG-IP

Security Processes:

  • Change Management
  • Rule Base Optimization
  • Incident Management (Standard & Critical)
  • Security Architecture understanding

Experience Required

  • 10–12 years overall experience
  • 8+ years in Information Security
  • 6+ years managing Security Operations Center (SOC)

Certifications

  • CCSA / CCSE / CCIE or equivalent (preferred)

Education

  • Graduate (Science/Engineering preferred)
Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.
  • Dice Id: prutx001
  • Position Id: 4256
  • Posted 3 hours ago
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