Sr. Systems Administrator

ManTech (


  Full Time   Employee   Contractor

United States

Become an integral part of a diverse team that leads the world in the Mission, Cyber, and Intelligence Solutions group. At ManTech International Corporation, you will help protect our national security while working on innovative projects that offer opportunities for advancement.

Currently, ManTech is seeking a motivated, career and customer oriented Sr. Systems Administrator to join our team in Chantilly, VA to provide unparalleled support to our customer and to begin an exciting and rewarding career within ManTech.
We are seeking a motivated, customer-oriented Systems Administrator in support of a secure Windows-based Information System.

The Sr. Systems Administrator will assist and support the installation, operation, and maintenance of all current and future Information Systems. Duties and responsibilities involve the support and administration of Windows servers and Windows workstations in an Amazon cloud environment. Additional duties include ICD 503 accreditation tasks, system documentation, analyzing and troubleshooting system anomalies, and ensuring optimal Information System performance.

A qualified candidate will perform the following duties and responsibilities, but are not limited to:

?Establish and maintain servers and workstations in an Amazon cloud environment.
?Establish and maintain S3 environments.
?Plan and implement activities in support of ICD 503 requirements.
?Perform Windows system administrative support to include adding and removing users, performing backups, installing software, monitoring system activity, and assisting users on a daily basis.
?Maintain and troubleshoot customer Windows servers and workstations.
?Perform technical modifications and configuration changes on virtual systems.
?The candidate should at a minimum possess knowledge of Microsoft Windows 2012 Server, Active Directory, and associated server and workstation hardware.
?The candidate should possess working knowledge of data backups, and antivirus systems.
?Create/maintain standard operating procedures and technical documentation on an as needed or as requested basis.

Security Clearance Requirement:
Active/current TS/SCI with Polygraph is required.


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