Network Security Engineer / Architect (Fortinet, FortiGate, Enterprise IT, Segmentation & Zero Trust) – CUI - US Persons ONLY
KORE1 Technologies
Fountain Valley, CA(remote)
Apply
JOB DETAILS
SALARY
$75–$85 Per Hour
SKILLS
ARP (Address Resolution Protocol), Access Control, Accounting, Aerospace and Defense, Authentication, BGP, Best Practices, Business Continuity Planning (BCP), Cisco Network Systems, Communication Skills, Computer Firmware, Consulting, DHCP (Dynamic Host Configuration Protocol), DNS (Domain Name System), Disaster Recovery, Documentation, Ecosystems, Finance, Firewalls, High Availability, IPsec (IP Security), Identify Issues, Internet Security, Internet Service Providers, Intrusion Detection Systems, Intrusion Prevention Systems, Link Aggregation Control Protocol (LACP), Manufacturing, Mentoring, Microsoft Active Directory, Microsoft Product Family, NAT (Network Address Translation), Network Administration/Management, Network Architecture/Engineering, Network Operations Center, Network Performance/Analysis, Network Routing, Network Security, Network Switching, Open Shortest Path First Protocol (OSPF), Performance Analysis, QoS (Quality of Service), RADIUS (Remote Authentication Dial-In User Service), RIP (Routing Information Protocol), Remote Access, Routing Protocols, SSL-TLS (Secure Socket Layer - Transport Layer Security), Security Attacks, Security Information and Event Management (SIEM), Security Monitoring, Security Policy, TCP/IP (Transmission Control Protocol/Internet Protocol), Technical Recruiting, Technical Support, United States Department of Defense (DoD), VLAN (Virtual Local Area Network), VMWare, VPN (Virtual Private Network), Wide Area Network (WAN), Wireless Communications
LOCATION
Fountain Valley, CA
POSTED
Today
No 3rd party firm / C2C candidates. No sub-vendors, layers, or candidate ownership by another staffing or consulting firm.
Location: Hybrid onsite in Fountain Valley, CA. We prefer 3-5 days a week on-site for the 1st 2 weeks, then you can work fully remote (from the US/Pacific Time Zone).
Work authorization: Due to the nature of the work and access to Controlled Unclassified Information (CUI) in support of U.S. Department of Defense-related programs, candidates must qualify as a U.S. Person (USPER), including U.S. Citizens, U.S. Nationals, or Lawful Permanent Residents (Green Card holders), and must meet all applicable requirements for access to CUI-regulated environments. This may include background screening, completion of required security/privacy training, and execution of non-disclosure agreements (NDAs) in accordance with federal compliance standards.
KORE1, a nationwide provider of staffing and recruiting solutions, has an immediate opening for a Network Security Engineer / Architect (Fortinet, FortiGate, Enterprise IT, Segmentation & Zero Trust) - CUI Environment / US Persons Only
We are seeking a highly experienced Network Engineer with deep expertise in the Fortinet ecosystem, specifically Fortinet FortiGate firewalls and FortiSwitch infrastructure. This role requires an expert-level engineer who understands the full Fortinet stack, security best practices, advanced routing/switching, VPN technologies, segmentation, wireless networking, and enterprise cybersecurity operations.
The ideal candidate will be hands-on, capable of architecting, implementing, troubleshooting, securing, and optimizing complex enterprise environments across multiple locations. This individual must be able to work independently, lead projects, mentor junior IT staff, and provide high-level escalation support.
Key Responsibilities
- Design, deploy, manage, and optimize enterprise Fortinet environments
- Configure and support:
- FortiGate Firewalls
- FortiSwitch
- FortiAP Wireless
- FortiAnalyzer
- FortiManager
- FortiClient VPN
- Implement and maintain:
- VLAN segmentation
- Site-to-site IPSec VPNs
- Remote access VPNs
- SD-WAN
- High Availability (HA) clusters
- NAC and network access policies
- Perform advanced firewall policy design and security hardening
- Troubleshoot complex routing, switching, ARP, NAT, DNS, and connectivity issues
- Configure dynamic and static routing protocols including:
- BGP
- OSPF
- RIP
- Policy-based routing
- BGP
- Maintain a secure enterprise wireless infrastructure using WPA2/WPA3 Enterprise and certificate-based authentication
- Monitor network performance, logs, and security events
- Conduct firmware upgrades, vulnerability remediation, and lifecycle management
- Support disaster recovery and business continuity planning
- Create and maintain detailed network diagrams and documentation
- Provide Tier 3 escalation support for critical outages and incidents
- Collaborate with vendors, ISPs, and managed security providers
Required Qualifications
- Fortinet Certified Professional (FCP) is a plus
- 5+ years of hands-on Fortinet experience
- Expert-level knowledge of:
- FortiGate
- FortiSwitch
- FortiAP
- FortiAnalyzer
- FortiManager
- Strong understanding of:
- Enterprise networking
- Cybersecurity
- Firewall architecture
- Zero Trust principles
- Enterprise networking
- Experience with:
- Multi-site enterprise environments
- Network segmentation
- IPS/IDS
- SSL inspection
- MFA integration
- VPN troubleshooting
- Advanced knowledge of:
- TCP/IP
- DNS
- DHCP
- NAT
- QoS
- STP
- LACP
- TCP/IP
- Experience supporting Microsoft environments:
- Active Directory
- Entra ID
- Microsoft 365
- NPS/RADIUS
- Strong documentation and communication skills
Preferred Experience
- Experience in regulated environments such as:
- Defense
- Aerospace
- Manufacturing
- Defense
- Experience with:
- CMMC compliance
- ITAR/CUI environments
- SOC/SIEM integrations
- Datacenter networking
- VMware or Nutanix environments
- Familiarity with:
- Meraki
- Cisco
- Aruba
- Veeam
- Datto RMM
Compensation depends on experience but is typically $75-85/hr
ABOUT KORE1
Specializing in professional and technical recruiting, KORE1 is committed to supporting top IT, Engineering, Creative, Scientific, Accounting and Finance professionals in their career paths. We build deep relationships with leading companies, connecting them to exceptional talent every day. With extensive industry expertise and unmatched opportunities, our goal is to provide a unique experience for our contractors and consultants as they prepare for their next role. We are passionate about matching the right people with the right companies.
Specializing in professional and technical recruiting, KORE1 is committed to supporting top IT, Engineering, Creative, Scientific, Accounting and Finance professionals in their career paths. We build deep relationships with leading companies, connecting them to exceptional talent every day. With extensive industry expertise and unmatched opportunities, our goal is to provide a unique experience for our contractors and consultants as they prepare for their next role. We are passionate about matching the right people with the right companies.
Kore1 provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics. In addition to federal law requirements, Kore1 complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. Kore1 expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status. Improper interference with the ability of Kore1's employees to perform their job duties may result in discipline up to and including discharge.
About the Company
K