Linux System Administrator

London Approach; Arlington (VA); On-site; USD 130,000 - 150,000; Full time

Job summary

A consulting firm is seeking a Senior Linux Systems Administrator to oversee Linux-based infrastructure in a classified environment. Responsibilities include the administration and maintenance of critical applications and databases, supporting both Oracle and Microsoft SQL Server environments. Candidates must have an active TS/SCI clearance with CI Polygraph, along with professional experience in Linux systems administration. A compensation range of $130,000 - $150,000 is provided, commensurate with experience.

Qualifications

• Active TS/SCI clearance with CI Polygraph.
• CompTIA Security+ certification.
• Professional experience in Linux systems administration.

Responsibilities

• Administer Linux-based infrastructure hosting critical applications.
• Maintain systems and support secure database environments.
• Coordinate secure data transfers and resolve migration issues.

Skills

Linux systems administration

Database support

Data migration operations

Troubleshooting

Performance optimization

Tools

Microsoft SQL Server

Job description

Clearance: Active TS/SCI with CI Polygraph (Required)

Overview

Our client is seeking a Senior Linux Systems Administrator to support long-term government programs operating within a highly secure, classified environment. This position is responsible for the administration, maintenance, and operational support of Linux-based infrastructure hosting mission-critical applications and databases associated with the Client’s Software Suite.

The role requires a hands‑on administrator experienced in enterprise environments, database support, and data migration operations within DoD or Intelligence Community programs.

Key Responsibilities

• Provide day-to-day administration and operational support for Linux-based infrastructure
• Maintain systems hosting mission-critical applications and databases
• Support Oracle and Microsoft SQL Server database environments
• Perform troubleshooting, patching, maintenance, and system performance optimization

Support data migration and ingest operations, including:

• Coordinating secure data transfers
• Resolving migration issues
• Support a long-term government program in a classified onsite environment

Required Qualifications

• Active TS/SCI clearance with CI Polygraph
• CompTIA Security+ certification
• Professional Linux systems administration experience in enterprise environments
• Experience supporting secure or classified environments (DoD or Intelligence Community)

Hands-on experience with

• Microsoft SQL Server
• Data migration or data ingest operations

Preferred Experience

• Supporting mission-critical applications in regulated environments
• Working with application hosting infrastructure
• Experience maintaining data integrity during migrations or system transitions

Compensation Range: $130,000 - $150,000 | Commensurate with experience