Mission-Critical Linux Systems Admin | TS/SCI w/ Poly

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

Benefits offered by this job

Health insurance

401(k) matching

Paid time off

Tuition reimbursement

Job summary

J T seeks a System Administrator 1 to provide hands-on Linux administration and operational support in a mission-critical enterprise environment. You will perform command-line administration, monitoring, maintenance, and manage application, data, and messaging flows.

The role requires at least five years of Linux experience and TS/SCI with Polygraph. Coordinated 6:00 AM–6:00 PM business hours with 24/7 on-call rotation and shift-differential compensation.

Qualifications

• Minimum of five years of direct Linux systems administration experience.
• Solid command-line proficiency in Linux environments and related utilities.
• Active TS/SCI with Polygraph clearance.
• No degree required.

Responsibilities

• Perform daily Linux OS management, maintenance, and health checks.
• Monitor data and messaging flows across core systems.
• Investigate and resolve hardware, software, and operational bottlenecks.
• Ensure system uptime and respond to alerts and downtimes.
• Document modifications and coordinate with engineering during maintenance.

Skills

Linux systems administration

Command-line

Troubleshooting

System monitoring

Tools

Shell scripting

Job description

J T seeks a System Administrator 1 to provide hands-on Linux administration and operational support in a mission-critical enterprise environment. You will perform command-line administration, monitoring, maintenance, and manage application, data, and messaging flows.

The role requires at least five years of Linux experience and TS/SCI with Polygraph. Coordinated 6:00 AM–6:00 PM business hours with 24/7 on-call rotation and shift-differential compensation.