Linux Engineer with Security Clearance

Peerless is seeking a Linux Systems Engineer with virtualization experience to join our growing team supporting the National Air and Space Intelligence Center (NASIC) at Wright-Patterson Air Force Base in Dayton, Ohio. The successful candidate will participate in the design, implementation, administration, and maintenance of a secure Linux, Windows, and virtualization infrastructure supporting mission-critical national security systems. Working alongside a collaborative team of engineers, you will help ensure our server environment remains reliable, scalable, and compliant with DoD security requirements. Key Responsibilities * Design, deploy, administer, and maintain Linux, Windows, and virtualized server environments. * Build, configure, patch, troubleshoot, back up, and restore virtual machines using VMware vCenter and Dell Avamar. * Deploy and maintain Red Hat Enterprise Linux, Rocky Linux, and Ubuntu server environments supporting mission applications. * Monitor system performance and troubleshoot issues using tools such as Splunk, PowerShell, PuTTY, OpenSSL, Wireshark, and server/application logs. * Implement and maintain DoD Security Technical Implementation Guide (STIG) compliance across server infrastructure. * Support infrastructure reliability, security, and scalability through routine maintenance and system improvements. * Collaborate with engineers and stakeholders to support mission requirements and infrastructure modernization. * Develop and maintain technical documentation and communicate system status, issues, and solutions effectively. Requirements * U.S. Citizenship. * Active Top Secret security clearance with SCI eligibility. * Current CompTIA Security+ certification. * Ability to work on-site in Dayton, Ohio. * Strong experience administering VMware virtual environments, including VMware vCenter and Dell Avamar backup solutions. * Experience administering Linux servers, including Red Hat Enterprise Linux, Rocky Linux, and Ubuntu. * Knowledge of Linux server deployment, patching, maintenance, backup, recovery, and troubleshooting. * Experience implementing and maintaining DoD STIG compliance. * Proficiency with Bash or Python scripting. * Strong written communication skills. * Bachelor's degree in Computer Science, Information Technology, or a related technical field.