Linux Systems Administrator – TS/SCI Polygraph, On-Call

J&T Business Consulting; New York (NY); On-site; USD 111,000 - 135,000; Full time

Benefits offered by this job

Health & Wellness

401(k) plan with company matching

PTO & holidays

Tuition reimbursement

Job summary

J&T Business Consulting is seeking a Systems Administrator 1 to provide hands-on Linux administration and operational support in a mission-critical environment. The role involves command-line system management, monitoring, and maintaining application and messaging flows, with a focus on resolving routine to moderately complex issues.

The position requires active TS/SCI with Polygraph and at least five years of Linux admin experience.

Qualifications

• Active TS/SCI with Polygraph clearance.
• Minimum of five (5) years of direct Linux systems administration experience.
• Solid command-line proficiency in Linux environments and shell navigation.
• Ability to investigate and resolve routine to moderately complex technical issues.

Responsibilities

• Linux Administration: daily OS management, user admin, health checks using command-line tools.
• Data & Message Flows: monitor and verify application and messaging pipeline performance.
• Troubleshooting & Issue Resolution: diagnose and resolve hardware/software bottlenecks.
• System Availability: ensure uptime via procedures and prompt response to alerts.
• Documentation & Coordination: document changes and coordinate with engineering during maintenance.

Skills

Linux administration

Command-line

System monitoring

Troubleshooting

Documentation

Education

No degree required

Job description

J&T Business Consulting is seeking a Systems Administrator 1 to provide hands-on Linux administration and operational support in a mission-critical environment. The role involves command-line system management, monitoring, and maintaining application and messaging flows, with a focus on resolving routine to moderately complex issues.

The position requires active TS/SCI with Polygraph and at least five years of Linux admin experience.