Deskside Support System Administrator - Military veterans preferred

ManTech (


  full-time   employee

United States

Where applicable, confirmation that you meet customer requirements for facility access which may include proof of vaccination and/or attestation and testing, unless an accommodation has been approved.

Secure our Nation, Ignite your Future

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

As a Deskside Support System Administrator, you will be responsible for providing full time support to a large enterprise Department of Defense customer. You will be directly responsible for supporting the customer end users. General duties include first-level end-user support; log, track, assign, and close help desk tickets; install approved software and configuration settings for workstation and thin clients; import, export, and copy files; virus scan media; update virus signature files; execute daily and weekly reports; and liaise between support units and customers. 

You will establish and maintain a professional presence in working with end-users and are responsive to time-critical requests issued by the customer. Create documentation and general user guides for application and desktop support. You will also provide over-the-shoulder training as needed to end-users. 
You will collaborate with and escalate incidents and problem to the other members of the operations team members to help resolve complicated issues to restore full capabilities of the secure IT solutions to deliver mission success for the customer. 

Individuals needs to be comfortable with current Microsoft On-Premise solutions, including Active Directory, Microsoft Office, Microsoft Exchange, Microsoft Skype, and Microsoft SharePoint. 
Candidates must have experience working with DISA STiGs, and/or Microsoft Desired State Configuration.
Candidates must demonstrate the capability to collaborate and independently learn new technologies to be successful.

Responsibilities Include:

  •  Troubleshoot User Authentication, Desktop Connections, and Desktop Applications.
  • Maintain and deploy approved applications. 
  • Document incidents and requests in customer ticketing system.
  •  Maintain and create user guides and knowledge base articles.
  • Execute file transfer and virus scan media.
  •  Identify, document, resolve or escalate problems and track till closure or resolution. 
  • Participate in testing new applications, services, feature and upgrades during service transition from design to operations. 
  • Create ITIL-compliant Incidents, Requests, and Problems.
  • Review existing processes and SOPs and apply automation in efficient ways to reduce and/or to reduce human interactions
  • Support normal 8-hour day, on-site at customer facility during the core business hours 

Position Requirements:

  • Must have at least 5 years of experience supporting Windows-based networks
  • Must have a strong background with Microsoft Office and IT Service Management ticketing system.
  • Must have recent experience with multi domain or cross domain solutions. 
  • Requires strong knowledge of security controls within NIST 800-53 and how to maintain the controls
  • Must maintain an IAT Level 2 certification (IAT Level 3 is preferred)
  • Experience using Automation, Scripting, or Endpoint Management Console to deploy Configuration as Code preferred. 

Security Clearance: Required TS/SCI eligible


For all positions requiring access to technology/software source code that is subject to export control laws, employment with the company is contingent on either verifying U.S.-person status or obtaining any necessary license. The applicant will be required to answer certain questions for export control purposes, and that information will be reviewed by compliance personnel to ensure compliance with federal law. ManTech may choose not to apply for a license for such individuals whose access to export-controlled technology or software source code may require authorization and may decline to proceed with an applicant on that basis alone.

ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

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