Systems Administrator, Senior- Red Hat Linux & Windows (Top Secret w/SCI eligibility)

OverviewAMERICAN SYSTEMS, a 100% employee-owned federal contracting company, is seeking a Senior Systems Administrator with strong Red Hat Linux CLI and Windows administration experience to support a Special Access Program in Washington, DC.This role focuses on owning and optimizing enterprise Linux & Windows infrastructure across multiple datacenters, partnering with cybersecurity and engineering teams, and providing Tier III support for systems that cannot fail.Role includes a $5,000 sign-on bonus in addition to a generous compensation package!ResponsibilitiesAs a Sr. Systems Administrator, you will:Support on-premises Linux (80%) and Windows (20%) infrastructure and applications.Support on-premises vSphere infrastructure across multiple datacenters.Provide Tier III support for production and development environments, managing ticket submission and tracking.Monitor resource availability to meet customer requirements, ensuring sufficient hardware, software, and throughput.Review and optimize system performance to ensure peak efficiency and reliability for mission-critical applicationsAnalyze system resource usage and apply corrective actions when necessaryReview system and application logs, ensuring completion of scheduled tasks and backupsCreate and manage user accounts, groups, and permissions; maintain local repositories in a RHEL-based environmentSupport on-prem and remote Linux-based Oracle database appliancesDevelop and maintain administrative bash scripts for system maintenance and automationProficient in DNS administrationDocument and implement system administration solutions to meet business requirementsQualificationsActive TOP SECRET clearance with SCI eligibility required; Program Access Request (PAR) submission required after hireBachelor’s degree in a STEM discipline (or additional years of relevant experience considered in lieu of degree)8-10 years of IT Systems Administration that includes 3-5 years of Linux CLI administration DoD 8140 IAT Level II cert (e.g., Security+ CE or equivalent)Experience designing and maintaining secure, scalable cloud/on-prem platforms (IL5–IL6+)Knowledge of STIGs, RMF, and DoW cybersecurity standardsKnowledge of containerization (Docker/Podman), Ansible for automation, and OpenLDAPExperience with virtualization (VMware) Strong CLI and Bash scripting experienceNOTE: U.S. Citizenship Required for the purposes of obtaining/holding a U.S. security clearancePay Transparency StatementAMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $150,000.00/Yr. - USD $175,000/Yr. Actual compensation will be determined based on several factors permitted by law. AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits, paid leave, retirement plans, insurance programs, and education and training assistance.EEO StatementEEO Race/Sex/Disability Status/Veteran StatusJob SummaryCategory: IT / Cyber Security / Network SystemsPosition Type: Full-TimeRemote: NoClearance Required: Top Secret/SCI