Senior� Systems Administrator� Transform technology into opportunity as a� Senior Systems Administrator� with GDIT.� � A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT� you’ll� be at the forefront of innovation and play a meaningful part in improving how agencies� operate.� The job duties of the Sr. Systems� 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 Systems� 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.� � Security + Certified;� Must presently be 8570 compliant (IAT Level 2 preferred)� Bachelor of Arts/Bachelor of Science in a field applicable to this work� US Citizenship Required� TS/SCI with Polygraph Desired Qualifications� Linux OS (CentOS, RHEL) administration.� � Satellite server administration.� � Ansible playbook writing.� � Implementing STIGs.� � Experience supporting� a software� configuration management and development environment� GDIT IS YOUR PLACE:� 401K with company match� Comprehensive health and wellness packages� Internal mobility team dedicated to helping you own your career� Professional growth opportunities including paid education and certifications� Cutting-edge� technology you can learn from� Rest and recharge with paid vacation and holidays #GDITCareers #WeAreGDIT #MD_Alumni2026 #VA_2026Alumni#JET�