Senior System Administrator with Security Clearance

Position Description: We are seeking a Senior System Administrator to join our PRIME contract in San Antonio, Texas. This position supports the implementation, troubleshooting, and maintenance of IT systems, managing infrastructure and related processes. Responsibilities include: Monitoring and resolving issues across client/server/storage/network devices, mobile devices, and more Providing Tier 1, Tier 2, and Tier 3 support for problem diagnosis and resolution Managing system escalations Providing status updates to agency management Ensuring timely communication with internal customers Configuring and maintaining UNIX, Linux, and Windows operating systems Improving system performance and ensuring overall network integrity Responsibilities: Support implementation, troubleshooting, and maintenance of IT systems Manage the daily activities of configuration and operation of IT systems Provide Tier 1 (Help Desk) support for problem identification, diagnosis, and resolution Assist users in accessing and using IT systems Provide Tier 1 (Help Desk) and Tier 2 (Escalation) support for problem diagnosis and resolution Perform account management (establishing, activating, modifying, disabling, and removing accounts) Ensure compliance with applicable system security controls through configuration management, implementation, and sustainment Perform periodic vulnerability scans of systems Support IT systems including daily operations, monitoring, and problem resolution for client/server/storage/network devices and mobile devices Implement IAVA security patches and ensure patch status is recorded in appropriate systems of record Support system escalations and communicate status to agency management and internal customers Optimize system operations and resource utilization and perform system capacity analysis and planning Provide in-depth troubleshooting experience for IT systems Deliver detailed analysis and feedback for escalated tickets Support hardware dispatch and issue resolution Configure and manage UNIX, Linux, and Windows operating systems Install and troubleshoot operating system software Ensure network integrity and implement OS enhancements for reliability and performance Communicate and coordinate with ISSO and ISO regarding system changes as part of the Change and Configuration Management Process Support the ISO in completing required milestones of Plan of Action & Milestones (POA&M) Ensure IT assets remain compliant with Identity & Access Control Management (ICAM) policy Provide Tier 2 (Escalation) support for problem identification, diagnosis, and resolution Apply knowledge of mission islands, Trusted Thin Client, and enhanced VDI (remote GPU and memory scaling) Support system design and mission architecture Analyze and resolve complex server hardware and software integration issues Provide Tier 3 (Escalation) support for problem identification, diagnosis, and resolution Basic Qualifications: Bachelor's degree in a technical discipline from an accredited college or university Four (4) years of additional SA experience may be substituted for a Bachelor's degree Fifteen (15) years of experience as a System Administrator (SA) in programs and contracts of similar scope, type, and complexity DoD 8570 compliance with Information Assurance Technical (IAT) Level II certification and Computing Environment (CE) Certification CE certification requirements can be fulfilled with Microsoft OS, Cent OS/Red Hat OS CE certifications Six (6) years of experience with Service Management (ITSM) ITIL 4 platform certification If assigned to Directory Services TTOs: Experience with Active Directory, Identity Management, SCCM, DNS, Group Policy, Active Role Servers, PAM Services, and MS Exchange If assigned to Desktop & Enclave Services TTOs: Understanding of mission islands, Trusted Thin Client, and enhanced VDI (remote GPU and memory scaling) Active TS/SCI with Polygraph