Enterprise Network Systems Administrator

Advancio; Downey (CA); On-site; USD 120,000 - 150,000; Full time

Job summary

Advancio is seeking an experienced Enterprise Network Systems Administrator (ENSA) to administer, maintain, monitor, and secure our enterprise network infrastructures and systems across multiple platforms.

The ENSA will work with network engineering, IT operations, and security teams to ensure availability, performance, and compliance, while configuring devices, enforcing security controls, and troubleshooting complex issues.

Qualifications

• +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).

Responsibilities

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

Skills

English proficiency

Tools

Cisco ATA

Cisco ACI

Cisco APIC

Cisco Prime

Cisco VoIP Call Manager

Cisco Nexus Switches

Enterprise Routers & Switches

Wireless Controllers & Access Points

VPN Technologies

Palo Alto Firewalls

Cisco ASA Firewalls

McAfee MVISION

SecureWorks

NetScout nGenius

OpenNMS

CACTI

Elastic Search

IBM Tivoli Monitoring (ITM)

SCOM

Wireshark

WAF Toolsets

Dynatrace

Uptime Robot

vROPS

Cherwell

WebCTRL

StruxureWare

Job description

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

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

Security & Monitoring

• Palo Alto Firewalls
• Cisco ASA Firewalls
• McAfee MVISION
• SecureWorks
• NetScout nGenius
• OpenNMS
• CACTI
• Elastic Search
• IBM Tivoli Monitoring (ITM)
• SCOM
• Route Explorer
• Wireshark
• WAF Toolsets

Operating Systems

• Windows Server
• Linux Server
• IBM Mainframe z/OS

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.