Linux Systems Administrator with Security Clearance

Linux Systems Administrator Location: Herndon, Virginia Clearance: TS/SCI with polygraph clearance adjudication or ability to obtain SCI and pass a poly Salary: $112,000 - $179,000 Certification: Security+ certification (DoD 8570 IAT Level II baseline) Position Overview As a Linux 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. 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. Required Qualifications 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. Desired Qualifications 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.