System Administrator – TS/SCI + Poly

Clearance Level
Top Secret SCI + Polygraph
Systems Administration
Herndon, Virginia
Onsite Workplace
Key Skills For Success


Microsoft Windows


REQ#: RQ143199
Requisition Type: Regular
Your Impact

Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats.

Job Description

Transform technology into opportunity as a System 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.

At GDIT, people are our differentiator. As a System Administrator, you will help ensure today is safe and tomorrow is smarter. Our work depends on System Administrator joining our team to impact the customer’s mission.


  • An experienced System Administrator passionate about administrating cloud infrastructure and providing solutions to meeting a data-driven organization.
  • Successful candidate will be an experienced action orientated systems administrator with fantastic understanding of cloud architecture and Linux based systems. 


  • Required Experience:
  • Demonstrate on-the-job engineering experience and/or outstanding in-depth knowledge with different technology solution for Secure Web and Application Services (e.g. Citrix Secure Browser).
  • Demonstrate on-the-job engineering experience and/or outstanding in-depth knowledge with System Monitoring/Management tools such as Nagios and/or Icinga
  • Demonstrate on-the-job engineering design and implementation experience with SAN and NAS technology along with different protocols for each storage technology
  • Support and troubleshoot web applications. This includes deployment of Tomcat applications using AWS and utilizing application and server logs to identify and resolve issues.
  • Demonstrate on-the-job engineering experience and/or outstanding in-depth knowledge with Linux (i.e. RHEL, CentOS, Scientific Linux) and/or Microsoft Windows Server environments and be able to engineer, build, configure, and maintain via Command Line Interface (CLI), as well as support development efforts in tuning/troubleshooting both application and OS level issues.
  • Create and update documentation, including standard operating procedures, administrative instructions, After Action Reports for system outages, task status updates, and customer reports.
  • Support for system and data security requirements, and documented system artifacts required for security certification.
  • Experience with implementing and maintaining encryption technology (PKI authentication, Vormetric, and KMS).Experience with building AWS infrastructure or migrating private on-premise solutions to cloud hosting environments.
  • Firm Relational Database understanding (Oracle, MySQL, Postgres, Kafka)
  • Security Clearance Level: TS/SCI + Poly

Preferred Skills:

  • Experience with SysOPs/DevOps.
  • Ability to perform cloud performance analysis and optimize distributed cloud systems.
  • Working knowledge of CloudFormation and Lambda.
  • Experience with scripting languages (Shell, Perl, and Python).
  • Location: On Site


  • Full-flex work week to own your priorities at work
  • 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



Work Requirements
Years of Experience

8 + years of related experience

* may vary based on technical training, certification(s), or degree

Travel Required



U.S. Citizenship Required

About Our Work

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

COVID-19 Vaccination

GDIT does not have a vaccination mandate applicable to all employees. To protect the health and safety of its employees and to comply with customer requirements, however, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on the status of the federal contractor mandate and customer site requirements.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.