Senior Network Administrator

Peraton

Senior Network Administrator maintaining operational health of network infrastructure in Stennis Space Center, Mississippi. Focus on routing, switching, security compliance and troubleshooting firewalls.

Posted 7/2/2026full-timeJohn C. Stennis Space Center • Mississippi • 🇺🇸 United StatesSenior💰 $80,000 - $128,000 per yearWebsite

Tech Stack

Tools & technologies

FirewallsLinuxSwitching

About the role

Key responsibilities & impact

Perform day-to-day operational network support, including troubleshooting firewalls and other network components.
Implement network changes after hours as required, following established change management processes.
Monitor network performance and manage network services, including SNMP, NTP, SSH, HTTPS, PKI, and syslog.
Maintain security compliance, perform assessments, and remediate issues as necessary.
Participate in on-call rotation and respond to network incidents in a timely manner.
Document all work and maintain accurate records in ticketing and change management systems.
Collaborate with internal teams to ensure network reliability, availability, and performance.

Requirements

What you’ll need

Bachelors degree and 5 years of experience or a Masters degree and 3 years of experience or a High School diploma and 9 years of experience.
Must be a U.S. Citizen with the ability to obtain a DHS (EOD) Public Trust.
Advanced experience in routing and switching
Strong knowledge of security compliance assessment and remediation
Experience with firewall troubleshooting and management
Knowledge of load balancing and AAA (Authentication, Authorization, Accounting)
Experience with network management and monitoring services (SNMP, NTP, SSH, HTTPS, PKI, syslog)
Familiarity with change management processes and ticketing systems
Experience with Windows and Linux operating systems
Understanding of virtualization technologies
Ability to work mostly business hours with some evening work and participate in on-call rotation
Strong attention to detail and excellent verbal and written communication skills

Benefits

Comp & perks

Health insurance
Retirement plans
Paid time off
Flexible work arrangements
Professional development

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

RoutingSwitchingFirewall TroubleshootingSecurity ComplianceNetwork MonitoringSNMPNTPSSHHTTPSPKI

Soft Skills

Attention To DetailVerbal CommunicationWritten Communication

Certifications

DHS (EOD) Public Trust