Mac Systems Administrator (Active Polygraph clearance required)

Clearance Level
Top Secret SCI + Polygraph
Systems Administration
McLean, Virginia

REQ#: RQ126160

Travel Required: 10-25%
Requisition Type: Regular

We are GDIT. The people supporting and securing some of the most complex government, defense, and intelligence projects across the country. We ensure today is safe and tomorrow is smarter. Our work has meaning and impact on the world around us, but also on us, and that’s important. GDIT is your place. You make it your own by embracing autonomy, seizing opportunity, and being trusted to deliver your best every day.

We think. We act. We deliver. There is no challenge we can’t turn into opportunity. And our work depends on a Systems Administrator joining our team to support our customer activities at McLean, VA. Ideal candidates will be comfortable in a fast-paced work environment, contributing to a team-based environment and be able to take direction but also be a self-starter.  The individual should be personable, well organized, and analytical with attention to detail.

At GDIT, people are our differentiator. As a Systems Administrator supporting Apple MacOS and iOS systems and technologies, you will be trusted to provide software and hardware support. In this role, a typical day will include:

  • Perform systems administration support tasks for Apple MacOS and iOS operating systems as part of a motivated, high-performing team.
  • TDY travel (approximately 25%) for on-site support to conduct installations and support system life cycle requirements.
  • Provide technical analysis integral to the maintenance and sustainment of USGOV systems.
  • Provide in-depth research and analysis of issues.
  • Provide in-depth knowledge and technical expertise in the areas of installation, maintenance, and support of Apple MacOS and iOS operating systems and technologies.
  • Respond to service requests.
  • Review technical briefs and information on changes to system configuration.
  • Establish and maintain effective working relationships with end users and managers.
  • Identify and resolve hardware and software problems related to Apple MacOS and iOS operating systems.
  • Perform system administration in a mixed virtual (VMware) and physical environment.
  • Identify, troubleshoot, and remediate security vulnerabilities.
  • Troubleshoot basic end-to-end networking problems involving Apple clients and other IT devices and or services.
  • Troubleshooting hardware, networks, and systems, supporting a mix of enterprise and standalone systems, maintaining hardware and the configuration management for switches, routers, and storage arrays.
  • Identify End-of-Life (EOL) issues, ensure all Apple MacOS / iOS systems applications are approved in accordance with customer requirements.
  • Provide user support for Apple MacOS and iOS related issues.
  • Performing regular maintenance duties such as patching, upgrades, and migrations to Apple MacOS systems.
  • Direct customer interactions and virtual support across multiple locations and activities.
  • Hardware replacement to include workstations, drives, and consumables.
  • Collaborating with teammates and government customers to identify process improvements.
  • Lending expertise and institutional knowledge to less experienced personnel to improve the overall technical excellence of the team.


  • Work experience must clearly demonstrate a strong working knowledge of Apple MacOS and iOS, working knowledge and experience with Apple products.
  • Demonstrated ability to effectively configure and administer Apple MacOS in a multi-system and/or multi-application environment.
  • Must have strong documentation and oral communication skills to clearly communicate will all levels of users, engineers, managers, and organizations.
  • TDY travel (approximately 25%) for on-site support to conduct installations and support system life cycle requirements.
  • Ability to work with others in a highly collaborative environment
  • Ability to multi-task and balance multiple goals and priorities
  • Self-Motivated, strong work ethic and commitment to quality
  • 8+ Years of relevant experience in technical field, to include Systems Analysis, Systems/Equipment Support, Test and Evaluation, and/or technical support.
  • BA/BS degree or equivalent work experience
  • Active TS/SCI clearance with Polygraph


  • 401K with company match
  • Challenging work
  • Internal mobility team dedicated to helping you own your career
  • Rewards program for high-performing employees

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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.