Senior Systems Administrator

Jobtailor

Vienna (VA)

On-site

USD 90,000 - 130,000

Full time

14 days+

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Job summary

Jobtailor is seeking a systems administrator to support national programs intelligence systems and services. The role includes installation, configuration, and maintenance of Linux servers and virtual environments, along with patching, monitoring, and customer support for mission-critical applications.

Applicants should have DoD 8570 certifications (e.g., Security+ CE, CASP, CISSP) and strong experience with Linux (RHEL/Ubuntu), Oracle Database, and performance optimization.

Qualifications

BA/BS degree with 5+ years of relevant experience, or Masters with 3+ years.

Responsibilities

Install, configure, and maintain Linux servers (RHEL/Ubuntu) and virtualization.
Perform patching, monitoring, and customer support for mission applications.
Troubleshoot network and application performance issues and recommend actions.
Collaborate with project teams, product experts, end users, and software engineers.

Skills

Linux System Administration

Oracle Database Management

Virtual Server Management

DoD 8570 Certification

Application Performance Optimization

Education

BA/BS degree or higher

Tools

Virtual Servers

Oracle Database

Monitoring Tools

Job description

Support the National Programs Intelligence Systems & Application Operating Unit. Orchestration, sustainment, and evolution of a portfolio of mission applications and services. Installation, configuration, and maintenance of Linux servers, virtual servers, and application software upgrades. Perform Operations and Maintenance tasks including patching, application monitoring, and customer support. Troubleshoot network and application performance issues and recommend appropriate action. Collaborate with project team members, product subject matter experts, end users, and software engineers.

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 installation, configuration, and maintenance of servers in classified environments. Proficient in application performance optimization, system monitoring, and customer support within mission‑critical applications.

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