Senior Systems Administrator

Jobtailor; Fairfax Station (VA); On-site; USD 110,000 - 160,000; Full time

Job summary

Jobtailor in the United States seeks a seasoned Linux/UNIX systems administrator to support national programs intelligence IT. The role focuses on installing, configuring, and maintaining Linux servers (RHEL/Ubuntu) and related application software in classified environments.

You will handle patch management, monitoring, performance optimization, backup management, and troubleshoot network/app issues, with emphasis on security certifications (DoD 8570).

Qualifications

• Bachelor's degree with 5+ years relevant experience or Master's with 3+ years.
• Proven Linux system administration in classified environments (RHEL/Ubuntu).
• Windows server administration experience preferred.
• Hands-on Oracle Database installation, maintenance, and troubleshooting.
• Experience managing both virtual and physical servers.
• Experience performing system monitoring.
• Experience with backup management.
• Experience implementing performance optimizations.
• Valid DoD 8570 certification (Security+ CE, CASP, CISSP, or similar).

Responsibilities

• Support the National Programs Intelligence Systems & Application Operating Unit.
• Install, configure, and maintain Linux servers, virtual servers, and application software upgrades.
• Operations and Maintenance tasks.
• Maintain operational baselines.
• Patch management, application monitoring, and customer support.
• Troubleshoot network and application performance issues.

Skills

Linux system administration

UNIX in classified environments

System monitoring

Backup management

Performance optimization

Security certifications (DoD 8570)

Education

BA/BS degree in a relevant field

Tools

Oracle Database

Virtualization (VMware/Hyper-V)

Job description

Responsibilities

• Support the National Programs Intelligence Systems & Application Operating Unit.
• Installation, configuration, and maintenance of Linux servers, virtual servers, and application software upgrades.
• Operations and Maintenance tasks.
• Maintain operational baselines.
• Patch management, application monitoring, and customer support.
• Troubleshoot network and application performance issues.

Requirements

• BA/BS degree with 5+ years of relevant experience; or Masters degree with 3+ years of experience.
• Proven experience in system administration, specifically with Linux (RHEL and Ubuntu), and UNIX in classified environments.
• Some Windows server administration experience would be good to have.
• Hands‑on experience with Oracle Database installation, maintenance, and troubleshooting.
• Experience managing both virtual and physical servers.
• Experience performing system monitoring.
• Experience with backup management.
• Experience implementing performance optimizations.
• Valid DoD 8570 certification (Security+ CE, CASP, CISSP, or similar).

Core Competencies

Demonstrates expertise in Linux system administration, including RHEL and Ubuntu, with a focus on installation, configuration, and maintenance of servers in classified environments. Proficient in application monitoring, performance optimization, and patch management, ensuring operational efficiency and security compliance.