Five Stones Research Corporation
Systems Administrator (Linux & Windows)
On-site systems administrator at a DoD contractor facility in Fort Huachuca, AZ, managing Windows and RHEL Linux servers, MECM/SCCM endpoint deployment, virtualization, and PKI, while maintaining DoD security compliance via STIGs, ACAS scans, and SIEM monitoring. Requires a Secret clearance and U.S. citizenship.
- Compensation
- Not disclosed
- Location
- Fort Huachuca, Arizona, United States
- Work setup
- Onsite
- Seniority
- Not specified
- Employment
- Full time
- Experience
- 2+ years
- Category
- Devops
- Posted
Skills
Must have
- Bachelor's degree in Computer Science, IT, Cybersecurity, or related STEM (or equivalent experience)
- 3-5+ years hands-on systems administration in mixed RHEL Linux and Windows enterprise environments
- 2+ years dedicated MECM/SCCM administration
- Active DoD 8570/8140 IAT Level II baseline certification (Security+ CE, CCNA Security, CySA+, GICSP, GSEC, or SSCP)
- Vendor/CE certification or training in Windows Server/MECM or RHEL (or within 6 months of hire)
- Active DoD Secret security clearance
- U.S. citizenship
Nice to have
- Proficiency with MECM/SCCM (OSD, application packaging, software updates, collections)
- RHEL administration: CLI troubleshooting, package management, daemon tuning, SELinux
- Windows Server 2019/2022, Active Directory, GPO authoring, DNS
- DoD compliance tooling: ACAS (Tenable/Nessus), SCAP Compliance Checker, STIG Viewer
- Enterprise backup and hypervisors (Nutanix AHV, VMware)
- Strong written communication for SOPs and status reports
- Prior experience in DoD testing facilities or lab/staging environments
- PowerShell and Bash scripting for automation
- Experience with Cohesity backup appliances and fapolicyd whitelisting
- Familiarity with Elastic Agent/Fleet, LogRhythm, or enterprise SIEM
- Basic understanding of firewalls, VPNs, F5 BIG-IP, and AWS GovCloud
Full description
Systems Administrator (Linux & Windows)Position Overview Type: Full-Time
Location: Fort Huachuca, AZ
Travel: None expected
Clearance: Department of Defense (DoD) Secret security clearance.
Work Authorization: U.S. Citizenship required
Summary/Objective
Five Stones Research Corporation (5SRC) is seeking energetic candidates to join our established and growing Huntsville-headquartered team.
Essential Functions
Endpoint Lifecycle Management & MECM/SCCM Administration
- Serve as the primary administrator for Microsoft Endpoint Configuration Manager (MECM / SCCM), managing infrastructure health, site systems, distribution points, and client agent health across all connected enclaves.
- Engineer, test, deploy, and maintain standardized Windows Operating System Deployment (OSD) task sequences and baseline golden images.
- Package, test, distribute, and automate application installations, scripts, and software updates across heterogeneous lab and hosting workstations and servers.
- Manage and orchestrate enterprise-wide software update distribution using Software Update Points (SUP) integrated with Windows Server Update Services (WSUS).
- Create and deploy custom compliance baselines and configuration items (CIs) to enforce security settings, STIG configurations, registry keys, and audit controls.
- Develop custom MECM queries, device collections, and reports (SSRS) to provide real-time hardware/software inventory, asset discovery, and compliance auditing.
Systems Administration (Linux & Windows)
- Administer, build, configure, and maintain physical and virtual Red Hat Enterprise Linux (RHEL) servers, modern Windows Servers (2019/2022), and Windows 10/11 workstations.
- Manage core directory and identity infrastructure, including Active Directory Domain Services (AD DS), Group Policy Objects (GPOs), DNS, DHCP, and role-based access control.
- Troubleshoot and maintain enterprise Linux services, including SE Linux policies/security contexts, daemon services (systemd, chronyd), file systems (/opt, logical volumes), and local package managers.
- Maintain hypervisor and storage infrastructure, including Nutanix, VMware ESXi/vCenter, and enterprise backup/restore solutions (e.g., Cohesity, snapshots).
- Support basic multi-tier database hosting and connectivity for Oracle and Microsoft SQL server backends.
- Process, approve, and maintain user access documentation and account provisioning via DD Form 2875 and identity management systems.