Senior System Administrator — TS/SCI Clearance

Leidos; Laurel (MS); On-site; USD 92,000 - 167,000; Full time

Job summary

Leidos in Laurel, MS is seeking a Senior System Administrator to support the implementation, operation, troubleshooting, and maintenance of IT systems and infrastructure across client/server, storage, network, mobile, and virtual environments.

You will administer UNIX, Linux, Windows, and virtual operating environments, handle escalated technical issues, configure network components, and ensure system integrity and security compliance to keep mission-critical systems available and responsive.

Qualifications

• TS/SCI clearance with Polygraph at the time of Application, to be considered for the position.
• Bachelor’s degree in a technical discipline from an accredited college or university.
• Five (5) additional years of System Administration experience may be substituted for the bachelor’s degree.

Responsibilities

• Manage daily configuration and operation of IT systems.
• Support implementation, troubleshooting, and maintenance of IT systems and associated infrastructure.
• Monitor and support day-to-day operations across client/server, storage, network, mobile, and related devices.
• Configure and manage UNIX, Linux, Windows, virtual, and other applicable operating-system environments.
• Install and load operating-system software, troubleshoot system issues, and maintain system integrity.
• Configure network components and implement operating-system enhancements to improve reliability and performance.
• Optimize system operations and resource utilization and perform system-capacity analysis and planning.
• Support security and STE/STN compliance of system software and hardware as required.
• Provide in-depth troubleshooting of IT systems.
• Assist users in accessing and using IT systems.
• Provide Tier 1 Help Desk and Tier 2 escalation support for problem identification, diagnosis, and resolution.
• Support dispatch-system and hardware problems and remain engaged through resolution.
• Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
• Communicate system status, technical issues, and resolution progress to agency management and internal customers.

Skills

UNIX

Linux

Windows

Troubleshooting

Help Desk

Security

Education

Bachelor’s degree in a technical discipline

Job description

Leidos in Laurel, MS is seeking a Senior System Administrator to support the implementation, operation, troubleshooting, and maintenance of IT systems and infrastructure across client/server, storage, network, mobile, and virtual environments.

You will administer UNIX, Linux, Windows, and virtual operating environments, handle escalated technical issues, configure network components, and ensure system integrity and security compliance to keep mission-critical systems available and responsive.