Linux System Administrator (Actice TS/SCI Clearance with Full Scope Polygraph)

J&T Business Consulting; Annapolis (MD); On-site; USD 90,000 - 120,000; Full time

Job summary

J&T Business Consulting in Annapolis, MD, seeks a Linux System Administrator to support TS/SCI with Full Scope Polygraph. The role covers installation, troubleshooting, and maintenance of IT systems in a high-security environment.

You will perform Tier 1 and Tier 2 incident responses, manage configuration of servers and workstations on CentOS/RHEL/Rocky, and coordinate with agency management to ensure system availability and security compliance.

Qualifications

• Five years of SA experience required.
• Bachelor’s degree in a technical discipline required.
• Active TS/SCI security clearance with a current polygraph required.

Responsibilities

• Provide Tier 1 (Help Desk) problem identification, diagnosis, and resolution.
• Manage the daily activities of configuration and operation of IT systems.
• Provide assistance to users in accessing and using IT systems.
• Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis, and resolution of problems.
• Provide support to IT systems, including day-to-day operations, monitoring, and problem resolution for all client/server/storage/network devices, mobile devices, etc.
• Provide support for the escalation and communication of status to agency management and internal customers.
• Optimize system operations and resource utilization, and perform system capacity analysis and planning.

Skills

TS/SCI clearance

System Administration

Education

Bachelor's degree in a technical discipline

Tools

CentOS 7

Rocky 9

RHEL 9

Job description

Linux System Administrator (Actice TS/SCI Clearance with Full Scope Polygraph)

Annapolis, United States | Posted on 08/11/2026

Provide support for the implementation, troubleshooting, and maintenance of IT systems

• Provide Tier 1 (Help Desk) problem identification, diagnosis, and resolution of problems
• Manage the daily activities of configuration and operation of IT systems
• Provide assistance to users in accessing and using IT systems
• Provide Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification, diagnosis, and resolution of problems
• Provide support to IT systems, including day-to-day operations, monitoring, and problem resolution for all of the client/server/storage/network devices, mobile devices, etc
• Provide support for the escalation and communication of status to agency management and internal customers
• Optimize system operations and resource utilization, and perform system capacity analysis and planning

Required Skills

• Five (5) years of experience as an SA in programs and contracts of similar scope, type, and complexity is required
• Bachelor’s degree in a technical discipline from an accredited college or university is required
• Five (5) years of additional SA experience may be substituted for a bachelor’s degree
• System Administration experience with CentOS 7, Rocky 9, and RHEL 9
• o Upgrading servers, workstations, and laptops
• Experience with the Customer Secure the Enterprise (STE) tasks
• Experience with the Customer data transfer process
• Hardware installation experience (servers/workstations)
• Active TS/SCI security clearance with a current polygraph is required