Linux Systems Administrator

MANTECH seeks a motivated, career and customer-oriented Linux System Administrator to join our team in Laurel, MD.Responsibilities:Responsibilities include, but are not limited to the following:Ability to analyze user’s requirements and high-level system architectures to develop system requirementsProvide Tier 1(Help Desk) and Tier 2/3 (Escalation) problem identification, diagnosis, and resolution of problemsProvide support to IT systems including day-to-day operations, monitoring, and problem resolution for all the clients/servers/network devices.Provide support for the patching systems and hardware problems and remains involved in the resolution process.Ability to support the planning and test analysis of the DoD Certification/ Accreditation processAbility to install software and hardware applications; upgrade systems with new releases and modelsMust be able to create accounts, reset passwords, and provide desktop support to customers via phone, tickets, or in-personMust be willing to work a flexible schedule between 6:00am-6:00pm and may be assigned to an evening patching schedule Minimum/Basic Qualifications:Must be proficient with troubleshooting in a Linux Red Hat environmentBachelor’s degree in technical discipline from an accredited college or university; an additional 5 years of  SA experience might be substituted for a degree is required.15+ years’ experience as a SA in programs and contracts of similar scope, type and complexity is required.IAT II certification (DOD 8140 required within 60 days of starting employment.  Acceptable certifications include CCNA-Security, Security+)Preferred Qualifications: Experience with SCANBOY or LatteArtExperience with RHEL 8 or 9Familiarity with JIRA ticketing systemClearance Requirements: Must be a US CitizenMust have a current active Top Secret/SCI with PolygraphPhysical Requirements: The candidate must be able to move, carry and deliver workstations from inside the office to customer’s desk.  The person in this position must be able to remain in a stationary position 50% of the time. Must communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

Created: 2026-03-05