Enterprise Network Systems Administrator

s Advancio, Inc.; Downey (CA); On-site; USD 110,000 - 170,000; Full time

Job summary

Downey, CA-based Enterprise Network Systems Administrator (ENSA) role focusing on maintaining and securing enterprise network infrastructures. You will configure devices, monitor performance, and implement security controls across multiple platforms.

The ideal candidate will have 5+ years in enterprise networks, 3+ years as a Network Systems Administrator or similar, and 2+ years in security monitoring, with strong English communication.

Qualifications

• 5+ years of experience managing and supporting enterprise network environments.
• 3+ years in a Network Systems Administrator or similar role.
• 2+ years in security monitoring and cybersecurity operations.
• Experience with large-scale enterprise networks and Cisco technologies.
• Advanced English communication skills.

Responsibilities

• Administer, maintain, monitor, and secure enterprise network infrastructures.
• Configure network devices and implement security controls.
• Troubleshoot complex networking issues across multiple platforms.
• Collaborate with network engineering, IT operations, and security teams.
• Ensure availability and compliance with organizational standards.

Skills

Advanced English communication

Network administration

Network troubleshooting

Security monitoring

Tools

Cisco VoIP Call Manager

Cisco Nexus Switches

Enterprise Routers & Switches

Wireless Controllers & Access Points

VPN Technologies

McAfee MVISION

SecureWorks

NetScout nGenius

OpenNMS

CACTI

Elastic Search

SCOM

Wireshark

Job description

Job Information

Technology

City Downey

State/Province California

90239

Job Description

About the Position

We are seeking an experienced Enterprise Network Systems Administrator (ENSA) responsible for administering, maintaining, monitoring, and securing enterprise network infrastructures and systems.

The ENSA will work closely with network engineering teams, IT operations, and security personnel to ensure network availability, performance, and compliance with organizational standards. This role involves configuring network devices, implementing security controls, troubleshooting complex issues, and supporting enterprise-level technologies across multiple platforms.

Our ideal candidate thrives in a fast-paced environment, enjoys solving complex technical problems, and takes ownership of critical infrastructure operations.

Requirements

Experience

• +5 years of experience managing and supporting enterprise network environments.
• +3 years of recent experience as a Network Systems Administrator or similar role.
• +2 years of recent experience in security monitoring and cybersecurity operations.
• Experience working with large-scale enterprise network infrastructures.
• Experience supporting Cisco enterprise networking technologies.
• Advanced English communication skills (written and spoken).

Technical Skills

Networking & Infrastructure

• Cisco VoIP Call Manager
• Cisco Nexus Switches
• Enterprise Routers & Switches
• Wireless Controllers & Access Points
• VPN Technologies

Security & Monitoring

• McAfee MVISION
• SecureWorks
• NetScout nGenius
• OpenNMS
• CACTI
• Elastic Search
• SCOM
• Route Explorer
• Wireshark
• WAF Toolsets

Operating Systems

• Windows Server

Nice to Have

• Experience with Dynatrace, Uptime Robot, vROPS, Cherwell, WebCTRL, and StruxureWare.
• Experience documenting network environments and creating technical procedures.
• Experience training end users and junior IT staff.
• Familiarity with enterprise architecture and IT performance assessment methodologies.
• Knowledge of configuration, information, and data management best practices.