Linux Systems Administrator

Peraton • Herndon, VA

139d • $112,000 - $179,000

About The Position

Peraton is seeking a Linux Systems Administrator IV to join our team supporting a mission-critical Intelligence Community customer. In this role, you'll be at the heart of ensuring the reliability, performance, and security of enterprise-level systems that directly support national security operations. As a senior systems administrator, you will be responsible for maintaining high-availability environments, rapidly troubleshooting and resolving complex issues, and working hands-on with cutting-edge technologies. You'll partner closely with government customers, contractor leads, ISSOs, application vendors, and end users—making your impact both immediate and highly visible. This is an opportunity for a proactive professional who thrives in high-stakes environments and takes pride in delivering resilient, secure systems. If you have a passion for Linux, cloud, and security, and you're ready to make a difference, we want to hear from you.

Requirements

• Bachelor's degree in a related field and 8+ years of relevant experience (An additional 4 years of experience in lieu degree).
• TS/SCI with polygraph clearance adjudication or ability to obtain SCI and pass a poly.
• Minimum 5 years in systems administration, including at least 3 years in Linux administration.
• Strong expertise with Unix/Linux operating systems; skilled in command-line administration.
• Experience with Red Hat OpenShift Platform.
• Hands-on experience with AWS Cloud and VMWare.
• Deep understanding of system hardening, STIG compliance, and patching.
• Active Security+ certification (DoD 8570 IAT Level II baseline).
• Strong teamwork skills, with the ability to anticipate issues and take decisive action.

Nice To Haves

• Experience with IBM Db2 database environments.
• Familiarity with Java Open JDK/JRE 11+.
• Experience supporting applications built on SQL Server and Oracle databases.
• Scripting expertise (Bash, PowerShell) for system monitoring, log mining, and automation.
• Ability to write SQL/PL-SQL queries for reporting and data management.
• Experience administering Apache Tomcat middleware.
• Demonstrated leadership skills in technical environments.

Responsibilities

• Lead daily system monitoring and monthly patching activities to maintain performance, stability, and compliance.
• Troubleshoot network, server, and application performance issues, quickly identifying root causes and delivering solutions.
• Manage and resolve customer issues through a ticketing system, with flexibility to respond onsite during off-hours when required.
• Deploy software patches and apply system hardening in alignment with Security Technical Implementation Guides (STIGs).
• Support and maintain IBM Db2 environments on Linux servers.
• Create and update technical documentation including SOPs, STPs, SIPs, SAGs, SUMs, and ICDs, translating complex system configurations into clear and actionable guidance.
• Collaborate with cross-functional teams to anticipate problems, recommend improvements, and ensure secure, optimized operations.

Benefits

• Heavily subsidized employee benefits coverage for you and your dependents.
• 25 days of PTO accrued annually up to a generous PTO cap.
• Participation in an attractive bonus plan.

What This Job Offers

• Career Level: Senior
• Industry: Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
• Education Level: Bachelor's degree