Network Systems Administrator

1 day ago


Aragüés del Puerto, Huesca, United States The One 23 Group Full time
Job Overview

The One 23 Group is seeking a highly skilled Network Systems Administrator - Senior to join our team. As a key member of our IT department, you will be responsible for designing, implementing, and maintaining our network infrastructure.

Key Responsibilities:

  • Develop and implement network operating rules, objects, and flows across a complex, global enterprise.
  • Analyze network infrastructure to identify opportunities for improvement and reduce the threat profile.
  • Participate in audits covering network security services and technologies.
  • Architect, engineer, and troubleshoot Fortinet firewalls and services.
  • Configure and install network and security-related hardware and software.
  • Address critical, high, and medium/low security vulnerabilities within specified timeframes.
  • Implement, operate, configure, maintain, and replace equipment to include LAN firewalls, Site-to-Site VPNs, LAN load balancers, DOJ's VTC service, THUB networks, Internal Proofpoint Mail Servers, and current monitoring systems.
  • Deploy and maintain Zscaler-related physical and virtual machines, including ZPA connectors, LSS connectors, NSS systems, and Private Service Edges.
  • Configure policy for both ZPA and ZIA in the customer's shared tenant.
  • Provide vulnerability mitigation, improve data replication and failover, and maintain and improve required security devices between the current operational environment and Third-Party connections.
  • Execute business continuance and disaster recovery plans.
  • Research, design, and implement new technologies, equipment, and services.
  • Participate in on-call rotation.

Requirements:

  • 8-10 years of experience providing LAN/WAN/Remote Access, Network Security, and/or Applications Support.
  • Experience providing LAN/WAN/Remote Access, Network Security, and/or Applications Support.
  • Experience and understanding of Cisco switching, routing, firewalls, Intrusion Detection Systems, and network management and monitoring, including OPNET.
  • Experience and understanding of DNS, email, web, and file proxies.
  • Experience in analyzing network requirements, drafting project documentation, coordinating with customers, deploying system technologies, providing project reporting, project oversight, and projecting out-year network requirements.

Desired:

  • Cisco Certified Internetwork Expert (CCIE) Routing & Switching
  • Zero Trust Container Architecture (ZTCA)
  • Zscaler Certified Cloud Administrator - Internet Access (ZCCA-IA)
  • Zscaler Certified Cloud Administrator - Private Access (ZCCA-PA)
  • Cisco Certified Network Professional (CCNP Data Center)
  • CISSP (Associate)
  • Cloud+
  • IAT L3 or Higher
  • IAM L3 or Higher

Clearance:

  • Must have a minimum active Top Secret clearance (US citizenship required).


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