Senior Systems Administrator: TS/SCI w/ CI Poly - On-Site

DAn Solutions; Reston (VA); On-site; USD 90,000 - 130,000; Full time

Job summary

DAn Solutions in Reston, VA seeks a System Administrator with a current TS/SCI clearance and CI polygraph. The role involves planning, designing, and upgrading infrastructure, managing VMware, and administering Windows and Linux systems. You will create STIG-compliant images and deploy software using SCCM/PDQ, while mentoring junior staff.

The position emphasizes on-site work with strict security requirements and collaboration across IT teams to support secure development environments.

Qualifications

• Linux OS administration (CentOS/RHEL)
• Satellite server administration
• Ansible playbook writing
• STIG implementation
• Experience supporting a software configuration management and development environment

Responsibilities

• Plans, designs, and implements infrastructure changes and system upgrades.
• Manages and troubleshoots multiple VMware environments.
• Provides Windows Server and Linux administration, maintenance, and troubleshooting.
• Creates STIG compliant images for Windows Desktop, Windows Server, and Linux OS.
• Creates, tests, and deploys software packages using deployment tools like SCCM, PDQ.
• Provides expert mentoring for Mid and Junior System Administrator personnel.
• Develops and maintains installation and configuration procedures for system and software changes.
• Utilizes scripting to automate common tasks.
• Performs hardware maintenance/repair activities.
• Ensures proper planning and execution of major projects/maintenance activities.
• Provides advanced administration and troubleshooting of Active Directory, GPO, DNS, DHCP, and Domain Controllers.

Skills

Linux administration

Ansible playbooks

STIG implementation

Software configuration management

VMware administration

Active Directory/DNS/DHCP

Tools

Satellite server administration

Job description

DAn Solutions in Reston, VA seeks a System Administrator with a current TS/SCI clearance and CI polygraph. The role involves planning, designing, and upgrading infrastructure, managing VMware, and administering Windows and Linux systems. You will create STIG-compliant images and deploy software using SCCM/PDQ, while mentoring junior staff.

The position emphasizes on-site work with strict security requirements and collaboration across IT teams to support secure development environments.