Linux Administrator

GovCIO is currently seeking a Senior Linux Administrator to support the installation, configuration, maintenance, and optimization of Linux based systems in support of 616th Operations Center (616 OC) operations. This position will be located in San Antonio, TX and will be an onsite position.ResponsibilitiesManages and maintains Linux-based systems and servers. Primary duties include installing, configuring, updating, and hardening Linux operations systems and software applications. Ensures system security by implementing appropriate measures, such as firewalls and intrusion detection systems, and by regularly applying security patches. The Linux administrator also works closely with the VMWare VCenter administrator and the VMWare Horizon Administrator to support Linux platforms that host critical VMWare applications and services. Additionally, the Linux administrator creates Ansible scripts that automate routine tasks to improve efficiency and reduce manual workload.Installs, configures, updates, and hardens Linux operations systems and software.Collaborates with other system administrators to ensure system security by implementing appropriate measures, such as firewall and intrusion detection systemsRegularly applies security patchesMaintains system documentation, including configurations, procedures, and troubleshooting stepsStays up to date with the latest Linux developments, vulnerabilities, and emerging technologiesAssists in planning and executing infrastructure projects, such as server migrations and upgradesQualificationsHigh School with 9+ years (or commensurate experience)Required Skills and ExperienceClearance Required: TS/SCI9 years of experience in IT support or a related roleInterpersonal and professional; oral and written communications skills required.Ability to work independently, manage priorities, and provide excellent customer supportAbility to manage multiple tasks and priorities in a fast-paced environmentDoD 8140 certification Information Assurance Technical (IAT) Level II (CompTIA Security+ or equivalent)Strong experience with enterprise Linux distributions (RHEL preferred)Experience with configuration management tools (Ansible preferred)Solid understanding of networking concepts (DNS, TCP/IP, firewalls)Experience with system monitoring toolsStrong knowledge of security best practices and system hardeningStrong knowledge of compliance frameworks (STIGs, NIST, etc.) preferably in government environmentsPreferred Skills and ExperienceDeploy, configure, and maintain Red Hat Satellite server infrastructurePerform automate patching of Linux servers (RHEL, CentOS, Rocky) using Satellite and Hammer CLIBuild and deploy new RHEL hosts using PXE, DHCP, and TFTP via SatelliteHandle Red Hat Subscriptions and Manifests, ensuring compliance across all connected systemsExpert-level ability to operate without a GUI, using command-line tools for daily maintenance, troubleshooting, and patchingStrong scripting skills, particularly in Bash or Python, to automate recurring tasks, patching, and system updatesAbility to manage storage (partitions, logical volumes) and perform system backups/disaster recoveryHardening servers (e.g., STIGs compliance), managing firewalls, and managing user accessMonitoring system health (CPU, memory, disk usage) and tuning parameters to improve performanceExperience configuring .repo files to manage remote, local, or satellite repositories4-6 years of experience with Linux operating systems (e.g., Ubuntu, CentOS, Red Hat etc.)3-7+ years of experience with VMware Horizon View, vCenter, and vSphere, specializing in deploying and managing Linux based virtual desktopsDeep knowledge of VMware Horizon 7.x/8.x, vSphere, ESXi, and VDI componentsExperience in creating, updating, and managing Linux golden images, application layering and user profile management (e.g. UEM)Strong understanding of networking concepts (subnets, VLANs, firewalls) and security protocols, including Active Directory integration2-5+ years of experience managing production-level Elastic clusters and expertise in optimizing cluster performance, sharding, and security. Candidates must know how to deploy, configure, and troubleshoot Elasticsearch, Kibana, Logstash, and Beats using automation tools like Ansible. Red Hat Certified Engineer (RHCE) certification preferredRed Hat Certified System Administrator (RHCSA) certification preferredVMware Certified Professional (VCP-DTM or VCP-DCV) preferredPosted Salary RangeUSD $125,000.00 - USD $135,000.00 /Yr.