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Remote Mainframe Network Engineer Jobs in California

Fox

Senior Network Architect

Los Angeles, CA · Remote

Architect and implement IP-based network design and traffic engineering solutions for live broadcast events, remote productions, and studio workflows. * Design EVPN-VXLAN overlays for scalable ...

Axos Bank

Sr. Network Security Engineer

San Diego, CA · On-site +1

$120K - $150K/yr

San Diego, CA Irvine, CA Los Angeles, CA Centennial, CO Las Vegas, NV Remote is not available. We are seeking a Senior Network Security Engineer to join our Zero Trust team and serve as a hands-on ...

Outfront Media

Senior Software Engineer

Los Angeles, CA · On-site +1

$132K - $174K/yr

... legacy mainframes into a modern, cloud-native, event-driven architecture integrated with third ... You'll work across a remote-first engineering team to design and deliver scalable, secure, and ...

Verse

Software Engineer, Rust

San Francisco, CA · Remote

$146K - $210K/yr

Remote (United States Only) What is Verse? Energy markets are more volatile than ever. Rapid ... As an advanced technical leader in network programming and state management development ...

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Remote Mainframe Network Engineer information

What is the difference between Remote Mainframe Network Engineer vs Remote Systems Administrator?

AspectRemote Mainframe Network EngineerRemote Systems Administrator
CertificationsIBM Certified System Administrator, Cisco CCNACompTIA Server+, Microsoft Certified Systems Administrator (MCSA)
Work EnvironmentMainframe data centers, large enterprise ITCloud environments, server rooms, enterprise networks
Industry UsageFinance, government, large corporationsIT services, tech companies, SMBs
Common Search/ComparisonYesYes

The Remote Mainframe Network Engineer focuses on maintaining and troubleshooting mainframe network systems in large enterprise environments, often requiring specialized certifications. In contrast, the Remote Systems Administrator manages a broader range of IT systems, including servers and cloud platforms. Both roles are essential in enterprise IT but differ in scope and technical focus.

What are the most commonly searched types of Mainframe Network Engineer jobs in California? The most popular types of Mainframe Network Engineer jobs in California are:
What are popular job titles related to Remote Mainframe Network Engineer jobs in California? For Remote Mainframe Network Engineer jobs in California, the most frequently searched job titles are:
What job categories do people searching Remote Mainframe Network Engineer jobs in California look for? The top searched job categories for Remote Mainframe Network Engineer jobs in California are:
What cities in California are hiring for Remote Mainframe Network Engineer jobs? Cities in California with the most Remote Mainframe Network Engineer job openings:
Remote Mainframe Network Engineer jobs near you
Infographic showing various Remote Mainframe Network Engineer job openings in California as of May 2026, with employment types broken down into 60% Full Time, and 40% Contract. Highlights an 60% In-person, and 40% Remote job distribution.
Network Security Engineer / Architect (Fortinet, FortiGate, Enterprise IT, Segmentation & Zero Trust

Network Security Engineer / Architect (Fortinet, FortiGate, Enterprise IT, Segmentation & Zero Trust

KORE1 Technologies

Fountain Valley, CA • On-site, Remote

$75 - $85/hr

Full-time

Posted 10 days ago

Job description

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
  • 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
  • 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
  • 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
  • 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.

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.