Senior System Administrator - TS/SCI w/Polygraph
Listed on 2026-07-23
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IT/Tech
Systems Administrator
Job Title
Senior Systems Administrator
OverviewTransform 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.
Job 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 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.
- Ability to write scripts using Power Shell 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 10 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 CI Poly
- Linux OS (CentOS, RHEL) administration.
- Satellite server administration.
- Ansible playbook writing.
- Implementing STIGs.
- Experience supporting a software configuration management and development environment
- 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
Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.
To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees are most valuable about.
Range
The likely salary range for this position is $142,792 - $184,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.
ScheduleWeekly
Hours:
40
Travel Required:
None
Telecommuting Options:
Onsite
USA VA Reston
Security Clearance RequirementsMust Currently Possess:
Top Secret/SCI
Must Be Able to Obtain:
Top Secret SCI + Polygraph
None
CitizenshipUS Citizenship
Required:
Yes
IT Infrastructure and Operations
Type ofRequisition
Regular
EEO StatementEqual Opportunity Employer / Individuals with Disabilities / Protected Veterans
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