Note: The job is a remote job and is open to candidates in USA. GTN Technical Staffing is seeking a Network Security Engineer to design, implement, and support secure enterprise network infrastructures for a diverse portfolio of clients. This role emphasizes enterprise networking, cybersecurity, and compliance within highly regulated environments, with responsibilities including firewall administration and SD-WAN implementation.

Responsibilities

• Design, implement, and support enterprise network infrastructure across multi-site and hybrid cloud environments
• Configure and manage enterprise firewall platforms including Palo Alto, Fortinet, Cisco ASA/Firepower, Juniper SRX, and Sophos
• Administer enterprise routing and switching utilizing BGP, OSPF, HSRP/VRRP, VLANs, QoS, Cisco Catalyst/Nexus, Juniper, Aruba, and Meraki technologies
• Design and support SD-WAN, VPN, and secure remote access solutions
• Implement network segmentation, Zero Trust architecture, and security hardening initiatives
• Support compliance efforts for CMMC Level 2, NIST 800-171, and SOC 2 environments
• Configure and maintain IDS/IPS, NAC, SIEM integrations, and security monitoring tools
• Respond to network security incidents and assist with remediation efforts
• Develop network diagrams, technical documentation, and audit-ready change records
• Partner with engineering teams and clients to successfully deliver infrastructure and security projects

Skills

• 6+ years of enterprise network and security engineering experience
• Strong experience with enterprise firewall platforms, preferably Palo Alto, Fortinet, and Cisco
• Expertise in enterprise routing, switching, SD-WAN, and VPN technologies
• Experience implementing network segmentation and Zero Trust security models
• Working knowledge of CMMC Level 2, NIST 800-171, and SOC 2 compliance requirements
• Experience with IDS/IPS, Cisco ISE, Aruba ClearPass, or SIEM platforms
• Strong troubleshooting, documentation, and communication skills
• Ability to travel up to 25%
• PCNSE
• Fortinet NSE 4+ (or equivalent)
• CCNP Enterprise or Security
• JNCIA
• CISSP (preferred)

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