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Network Administrator
Network AdministratorCompunnel Inc. • Jacksonville, FL, United States
Network Administrator

Network Administrator

Compunnel Inc. • Jacksonville, FL, United States
3 hours ago
Job type
  • Full-time
Job description

Senior Network Administrator (Firewall) BAHDC5687559

Location : Jacksonville FL

Skill in :

  • Designing, implementing, and supporting secure network and application delivery infrastructure using Cisco, Palo Alto, F5, and Aviatrix technologies.
  • Developing and enforcing firewall rules, NAT policies, segmentation strategies, and secure remote access solutions (e.g., IPSec, SSL VPN, SD-WAN).
  • Deploying and tuning F5 BIG-IP appliances for secure application delivery, load balancing, and access control.
  • Architecting and managing secure multi-cloud connectivity using Aviatrix, including integration with cloud-native services.
  • Using database and configuration management tools to track changes, audit compliance, and support performance analysis.
  • Own network security posture : enforce segmentation, zero-trust principles, firewall policies, and cloud-native controls.
  • Applying structured change management processes to security infrastructure upgrades, incident response, and policy changes.
  • Testing and validating security hardware / software for new deployments, upgrades, and compliance initiatives.
  • Developing scripts or automation tools to support security monitoring, configuration management, and reporting.

Knowledge of :

  • Administration and maintenance of network and security operating systems and applications, including Cisco IOS / NX-OS, PAN-OS, F5 TMOS, Aviatrix Controller, Panorama, GlobalProtect, threat prevention, and SSL decryption.
  • Secure network architecture, design, and integration using protocols such as TCP / IP, EIGRP, OSPF, BGP, STP, and advanced routing and segmentation strategies.
  • Firewall and security policy design using Cisco ASA / Firepower and Palo Alto NGFWs, including application-layer filtering, threat prevention, and VPN technologies.
  • Application delivery and security using F5 BIG-IP modules (LTM, ASM, APM) and iRules for traffic management and access control.
  • Design secure and highly available Hybrid cloud network architectures . Multi-cloud networking and security using Aviatrix, including transit gateways, segmentation, encryption, and policy enforcement across AWS, Azure, and GCP.
  • Perform deep packet analysis, root cause investigations, and performance / security tuning.
  • Voice and unified communications security protocols including UDP, RTP, RTCP, and QoS considerations.
  • Network and security performance monitoring tools (e.g., SolarWinds, Splunk, SecureX, Cortex XDR) and log analysis for threat detection and response.
  • Operating system commands and utilities for network and security diagnostics (e.g., Linux, CLI, PowerShell, Bash).
  • Best Regards,

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    Network Administrator • Jacksonville, FL, United States

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