Secret-Cleared Windows/Linux System Administrator (Hybrid)

EmergencyMD; Huntsville (AL); On-site; USD 90,000 - 130,000; Full time

Job summary

Davidson Technologies in Huntsville, Alabama is seeking a Windows/RHEL System Administrator to support the Integrated Battle Command System (IBCS) program. The role focuses on Windows administration, AD, PowerShell scripting, and cross‑platform automation with Ansible.

The candidate will contribute to security hardening per DISA STIGs, participate in Agile processes, and mentor staff on hybrid Windows/Linux operations in a defense environment.

Qualifications

• Active Final Secret clearance is required.
• CompTIA Security+ (CE) certification or higher.
• 5-10 years of Windows administration in a secure, multi-OS environment.
• Proficiency with Windows 10/11 and Server 2019/2022.
• Experience with AD, DNS, file sharing and NFS.

Responsibilities

• Administer Windows 10/11 clients and Windows Server 2019/2022 hosts, including virtualization platforms (Hyper‑V/VMware).
• Manage Active Directory forests, OU structure, group policy, DNS, file sharing (SMB/CIFS) and NFS services.
• Develop and maintain PowerShell and batch scripts for provisioning, software deployment and remediation.
• Create and run Ansible playbooks for cross‑platform automation (bonus).
• Apply DISA STIGs, ACAS scan remediations and Evaluate‑STIG tools; perform security‑focused OS/software updates and hardening.
• Administer Microsoft Office 365, Teams, SharePoint and related services.
• Diagnose and resolve Windows OS, application and networking issues; provide Level2/3 support.
• Participate in Agile ceremonies and contribute to Git/GitLab repositories and CI/CD pipelines (bonus).
• Produce run‑books, SOPs and configuration documentation; mentor junior staff on hybrid Windows/Linux operations.

Skills

Windows administration

PowerShell scripting

Active Directory

Security compliance

Agile ceremonies

Git/GitLab

Education

CompTIA Security+ (CE)

Tools

WSUS

SCCM

Ansible

Hyper-V

VMware ESXi

NFS/DNS

Job description

Davidson Technologies in Huntsville, Alabama is seeking a Windows/RHEL System Administrator to support the Integrated Battle Command System (IBCS) program. The role focuses on Windows administration, AD, PowerShell scripting, and cross‑platform automation with Ansible.

The candidate will contribute to security hardening per DISA STIGs, participate in Agile processes, and mentor staff on hybrid Windows/Linux operations in a defense environment.