Linux Systems Administrator

hackajob is collaborating with MANTECH to connect them with exceptional professionals for this role.MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA.As a Linux Systems Administrator, you will help maintain and enhance the Sponsor’s Linux environment alongside a talented team. You will be responsible for the operating system software and its seamless integration with hardware and applications across the organization.Responsibilities Include But Are Not Limited ToPlanning, testing, installing, integrating, and maintaining new and upgraded versions of the relevant operating systemsBuilding and hardening Linux servers, and establishing configuration baselines while applying all appropriate security and firmware patches in a timely mannerDeveloping test plans/procedures, managing operating system lifecycles, and designing interfaces to external systemsResearching, troubleshooting, and resolving operating system problems efficiently by collaborating with application development and network teamsMaintaining and updating complex documentation on the operating system configuration and all other areas of responsibilityDemonstrating strong communication and collaboration skills to work effectively and proactively across a large organization of dispersed teamsMinimum QualificationsHigh School Diploma/GED with 2+ years of progressively responsible experience configuring and maintaining Linux servers in a large, complex server environmentExperience working in an organization with complex, intertwined systems, data flows, and applying security patches in a Linux environmentExperience creating, maintaining, and communicating complex information technology documentationExperience with domain account management, particularly via Centrify, LDAP, and Active DirectoryExperience with shell scripting to automate administrative tasksPreferred QualificationsExperience scripting with Ansible or similar technologiesExperience with the Sponsor’s primary automation and configuration management toolsSelf-starter with excellent people skills - able to work across teams and drive change throughout an organizationClearance RequirementsAn active TS/SCI with Polygraph is required.Physical RequirementsMust be able to remain in a stationary position 50% of the time to operate a computer and other office productivity machinery.Needs to occasionally move about inside the office to access file cabinets, office machinery, and maintain computers in the lab, including under desks and in the server closet.Frequently communicates with co-workers, management, and customers, which may involve delivering presentations and exchanging accurate information.