San Antonio, TX 78205 • (15.3 miles) • Full Time • 9/10/2025

ManTech seeks an experienced and passionate, career and customer-oriented System Administrator to join our team located in the San Antonio, TX area.Responsibilities include, but are not limited to:Demonstrate experience creating and managing virtual environments (VMWare ESX, VCenter Administration)Experience in administration of LinuxExperience configuring and maintaining storage and file systems (NFS, EXT3/4, XFS)Experience in developing and delivering briefings, technical presentations, and program documentation to senior program managementMinimum Qualifications:Bachelor’s degree in computer science or a related discipline and 7 years related experience or associate’s degree in computer science or a related discipline and 11 years related experienceExperience using AnsibleExperience writ

San Antonio, TX 78205 • (15.3 miles) • Full Time • 8/23/2025

MANTECH seeks a motivated, career and customer-oriented LinuxSystems Administrator to join our team in San Antonio, TX supporting the Linux Orchestration Services (LOS) team which is the standard of excellence for all things Linux within the agency.The team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation.Responsibilities include, but are not limited to:Provides support for implementation, troubleshooting and maintenance of Cloud Infrastructure Services hosted in multiple cloud environments.Provides Tier I/II and Tier III (Escalation to Architecture Team) resolution of customer capacity requests. Provides support for the escalation and communication of status to management and internal customers.Provides con