Sr System Administrator

Reston, Virginia

DAn Solutions Inc
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REQUIRES AN ACTIVE/EXISTING TS/SCI WITH CI POLYGRAPH - NO REMOTE WORK

The job duties of the Sr. System Administrator are as follows:

• 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 software deployment products such as SCCM, PDQ, etc.

• Provides expert level support and 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 level administration and troubleshooting of Active Directory, GPO, DNS, DHCP, and

Domain Controllers.

Required Qualifications

• Ability to write scripts using PowerShell and/or Bash.

• Experience managing VMware, Nutanix, and other types of enterprise level Virtual Infrastructures.

• Proficient in managing and troubleshooting Active Directory and Group Policy Object (GPO).

• At least 8 years of relevant experience.

• Must presently be 8570 compliant (IAT Level 2 preferred); must be 8570 compliant (IAT Level 2) by date of security indoctrination with any necessary continuing education (CE) for certification.

Desired Qualifications

• Linux OS (CentOS, RHEL) administration.

• Satellite server administration.

• Ansible playbook writing.

• Implementing STIGs.

• Experience supporting a software configuration management and development environment.
Date Posted: 29 April 2025
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