Mission-Critical Linux Systems Administrator (TS/SCI)

J T; Columbia (MD); On-site; USD 111,000 - 135,000; Full time

Benefits offered by this job

Health insurance

401(k) plan

Paid time off

Life insurance

Disability insurance

Tuition reimbursement

Job summary

The System Administrator 1 role provides hands-on Linux administration and operational support within a mission-critical enterprise environment. You will perform command-line system administration, system monitoring, and maintain application and messaging flows to keep core services available.

The position requires active TS/SCI with Polygraph, at least five years of Linux administration experience, and a track record of troubleshooting complex issues.

Qualifications

• Active TS/SCI with Polygraph.
• 5+ years of direct Linux systems administration experience (no degree required).
• Solid command-line proficiency with Linux OS environments, troubleshooting utilities, and shell navigation.

Responsibilities

• Linux Administration: Perform daily operating system management, maintenance, user administration, and system health checks using command-line tools.
• Data & Message Flows: Monitor, manage, and verify application, data, and messaging pipeline performance across core systems.
• Troubleshooting & Issue Resolution: Investigate, diagnose, and resolve technical hardware, software, and operational bottlenecks.
• System Availability: Ensure mission system uptime by adhering to operational procedures and responding promptly to system alerts and downtime incidents.
• Documentation & Coordination: Document system modifications, track recurring issues, and collaborate with engineering peers during handoffs and scheduled maintenance windows.

Skills

Linux command line

Troubleshooting

Shell navigation

Job description

The System Administrator 1 role provides hands-on Linux administration and operational support within a mission-critical enterprise environment. You will perform command-line system administration, system monitoring, and maintain application and messaging flows to keep core services available.

The position requires active TS/SCI with Polygraph, at least five years of Linux administration experience, and a track record of troubleshooting complex issues.