L2 Linux/Unix NOC Engineer — 24x7 On-Call

Unisys; Philadelphia (Philadelphia County); On-site; USD 85,000 - 120,000; Full time

Job summary

Unisys in the United States is seeking a Linux/Unix Systems Administrator to manage development, test, and production servers, including re-imaging, patching, configuration, and shell-level maintenance. You will diagnose and resolve complex OS and service issues, monitor performance daily, install and upgrade packages with yum, apt, or rpm, and perform root-cause analysis on incidents.

The role requires ability to support 24x7 operations with rotating shifts, U.S.

Qualifications

• BA/BS degree and 2-4 years of relevant experience.
• Strong experience with Linux/Unix troubleshooting and server administration.
• Ability to support 24x7 operations with rotating shifts.
• U.S. Citizenship or U.S. residency required.

Responsibilities

• Administers Linux/Unix development, test, and production servers including reloading, re-imaging, patching, configuration, and shell-level maintenance.
• Diagnoses and resolves complex Linux/Unix OS, service, and connectivity issues.
• Performs daily monitoring of Linux/Unix systems, services, and performance; initiates proactive remediation.
• Installs, removes, and upgrades Linux/Unix packages using native package managers (yum, apt, rpm, etc.).
• Owns Level 2 Linux/Unix-related tickets through resolution, including root cause analysis.
• Provides system evaluation reports and contributes to operational recommendations for Linux/Unix environments.
• Updates system records, ensures licensing compliance, and maintains accurate configuration data for Linux/Unix assets.
• Creates runbooks and how-to guides; trains Level 1 analysts on Linux/Unix procedures.

Skills

Linux/Unix troubleshooting

Server administration

Rotating shifts

Citizenship/residency required

Education

BA/BS degree

Job description

Unisys in the United States is seeking a Linux/Unix Systems Administrator to manage development, test, and production servers, including re-imaging, patching, configuration, and shell-level maintenance. You will diagnose and resolve complex OS and service issues, monitor performance daily, install and upgrade packages with yum, apt, or rpm, and perform root-cause analysis on incidents.

The role requires ability to support 24x7 operations with rotating shifts, U.S.