Senior Network Security Specialist

2 days ago

Huntsville, Alabama, United States Marathon TS Full time
Job Title: Senior Network Security Specialist

Marathon TS is seeking a highly skilled Senior Network Security Specialist to support a client in the Huntsville, AL area.

Job Summary:

The ideal candidate will have a strong background in cyber security and networking, with experience in supporting and maintaining IT infrastructure. The position requires in-depth knowledge of networking devices and cyber security disciplines, as well as the ability to provide research, design, and implementation of security improvements and security controls.

Key Responsibilities:
  • Support and maintain IT infrastructure with special attention to information security and networking.
  • Provide research, design, and implementation of security improvements and security controls.
  • Manage Palo Alto firewalls, including Panorama, High Availability setup, FIPS operating mode, GlobalProtect client VPN, SSL Decryption, App-ID updates, User-ID deployment.
  • Build site-to-site IPsec tunnels, routing protocols, VLANs, threat prevention and intrusion detection/protection.
  • Manage firewall policies, routing, client/server VPN, and disciplines with configuration change control within a team environment.
  • Manage wireless network access points and configure and manage them.
  • Thoroughly understand OSI model and TCP/IP protocol stack at all network layers, network topologies, static and dynamic routing protocols.
  • Experience with network monitoring and log management software tools such as WhatsUpGold, Nagios, Grafana, Cacti, NetFlow, etc.
Requirements:
  • United States citizenship.
  • Minimum years of experience in direct support of enterprise networking.
  • Highly skilled with hardware, operating systems, and networking in both general office and data center environments.
  • Network switch installation/deployment, stacking, configuration, and management.
  • Experience with management of Palo Alto firewalls, including Panorama, High Availability setup, FIPS operating mode, GlobalProtect client VPN, SSL Decryption, App-ID updates, User-ID deployment.
  • Strong experience in building site-to-site IPsec tunnels, routing protocols, VLANs, threat prevention and intrusion detection/protection.
  • Firewall management including upgrades, security policies, routing, client/server VPN, and disciplines with configuration change control within a team environment.
  • Wireless network management, access point configuration and management.
  • Thorough knowledge of OSI model and TCP/IP protocol stack at all network layers, network topologies, static and dynamic routing protocols.
  • Solid experience with NAT, SSL/TLS, LDAP, RADIUS, SNMP, DHCP, DNS, NTP, protocols and implementations.
  • Experience with network monitoring and log management software tools such as WhatsUpGold, Nagios, Grafana, Cacti, NetFlow, etc.
Preferred Qualifications:
  • Experience with IEEE port-based network access control.
  • Familiarity with support technologies such as VMware, Linux, MacOS, Windows AD, Group Policy configuration, Azure AD, two factor authorization methods, dynamic routing protocols (BGP), and cyber-IT security tools.
  • Knowledge and familiarity with security standards and federal compliance regulations (, NIST, DFARS, CMMC, FedRAMP).
  • Detail oriented with attention to scientific problem solving, critical thinking, strong organization skills, and forensic approach to security investigation.
  • Good communication skills - written and verbal.
  • Any experience with Ivanti Pulse Secure Connect, ArubaOS-CX, Ubiquiti, Cisco, Dell, Client hardware.
  • Relevant professional industry certifications in networking and IT security.
  • Bachelor's Degree in Computer Science, Computer Engineering, Information Security, or an equivalent combination of education and experience from which knowledge and skills may be acquired.
  • Thorough knowledge of network technologies, protocols, and standards.
  • Ability to automate common/essential tasks via preferred scripting language.
  • Experience with source revision control tools (SVN/GIT) and configuration management tools such as Ansible.
  • Ability to harness packet sniffers tools such as Wireshark for advance network troubleshooting and resolution.
  • Some domestic travel may be required up to about %.

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