Senior Systems Administrator

Jobtailor; Herndon (VA); On-site; USD 90,000 - 130,000; Full time

Job summary

Jobtailor in Herndon, VA seeks an experienced Linux Systems Administrator to support National Programs Intelligence Systems & Applications. You will install, configure, and maintain Linux servers and virtual environments, and perform software upgrades to keep critical applications running.

The role requires practical UNIX experience in classified environments, familiarity with Oracle Database, and hands-on monitoring, backups, and performance tuning.

Qualifications

• BA/BS degree with 5+ years of relevant experience or Masters with 3+ years.
• Proven Linux system administration experience (RHEL, Ubuntu) and UNIX in classified environments.
• Some 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.
• DoD 8570 certification such as Security+ CE, CASP, CISSP, or equivalent security certification.

Responsibilities

• Support the National Programs Intelligence Systems & Application Operating Unit.
• Install, configure, and maintain Linux servers, virtual servers, and application software upgrades.
• Perform O&M tasks, maintain baselines, apply patches, monitor applications, and provide customer support.
• Troubleshoot network and application performance issues and recommend actions.
• Collaborate with project teams, product SMEs, end users, and software engineers to keep applications operational.
• Develop tools for systems management, maintain documentation, and perform daily backups.

Skills

Linux admin

RHEL

Ubuntu

UNIX in classified env

Windows server

Oracle DB

System monitoring

Backup management

Performance optimization

Security certification

Education

BA/BS degree

Master's degree

Tools

Oracle Database

Job description

Responsibilities

• Support the National Programs Intelligence Systems & Application Operating Unit.
• Perform installation, configuration, and maintenance of Linux servers, virtual servers, and application software upgrades.
• Operations and Maintenance tasks, maintaining operational baselines, and supporting application O&M activities including patching, application monitoring, and customer support.
• Troubleshoot network and application performance issues and recommend appropriate action.
• Work closely with project team members, product subject matter experts, end users, and software engineers to ensure applications remain operational.
• Develop tools to assist in systems management, ensure application documentation is maintained, and perform daily application backups.

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, including 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.
• Currently valid DoD 8570 certification such as Security+ CE, CASP, CISSP, or similar security certification.

Core Competencies

Demonstrates expertise in Linux system administration, including RHEL and Ubuntu, with a focus on operational maintenance, performance optimization, and application support in classified environments. Proficient in managing both virtual and physical servers, ensuring system reliability and security.