ManTech International

Systems Administrator

ManTech International$71K — $118K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in Computer Science or related field with 1+ years of IT experience; Associates degree with 3 years or high school with 6 years of experience acceptable
  • Experience with Microsoft Windows Server 2008/2012/2016
  • Experience with Microsoft Windows 10
  • Experience with Microsoft Office 2007/2010/2016
  • Experience with vSphere, Horizon View, data backups, and antivirus software
  • Basic networking experience, including TCP/IP
  • Experience with a Service Desk ticketing system, such as Remedy or ServiceNow
  • DoD 8570 IAT Level II Certification, e.g., Security+ CE

Responsibilities

  • Maintain and troubleshoot customer Windows workstations, both onsite and remotely
  • Perform Windows system administrative tasks including user management and software installation
  • Conduct remote troubleshooting using diagnostic techniques
  • Determine suitable solutions for support tickets based on customer issues
  • Escalate unresolved queries to higher support levels
  • Track, route, and redirect technical issues to correct resources
  • Follow standard operating procedures and accurately log all tickets in tracking software

Benefits

  • Health Insurance
  • Life Insurance
  • Paid Time Off
  • Holiday Pay
  • Short-term and long-term Disability
  • Retirement and Savings
  • Learning and Development opportunities
  • Wellness programs
Full Job Description
General information

Requisition #

R70542

Locations

USA-VA-Chantilly

Posting Date

09/14/2026

Security Clearance Required

TS/SCI

Remote Type

Onsite

Time Type

Full time

Description & Requirements

MANTECH seeks a motivated, career and customer-oriented Windows Systems Administrator to join our team in Chantilly, VA. This is an onsite position.

The administrator will support the installation, operation, and maintenance of all current and future Information Systems. Duties and responsibilities involve the administration of Windows servers, Windows workstations, Terminal Servers, File & Print servers, organization folders, system documentation, analyzing and troubleshooting system anomalies, and ensuring optimal Information System performance. This position is a part of a centralized team of systems administrators.

Responsibilities include, but are not limited to:
  • Maintain/troubleshoot customer Windows workstations, both on-site and remotely
  • Perform Windows system administrative support to include adding and removing users, performing file restores, installing software, and assisting users daily
  • Perform remote troubleshooting through diagnostic techniques and questions
  • Determine the best solution to resolve tickets based on the issue and details provided by customers
  • Properly escalate unresolved queries to the next level of support
  • Track, route, and redirect problems to correct resources
  • Follow standard operating procedures; accurately log all tickets using the defined tracking software
  • Walk customers through problem solving process to ensure proper incident and request recording, documentation, and closure
  • Responsible for day-to-day coordination and administration of tasks by ensuring quality and productivity standards are maintained while meeting customer schedules
  • Assist with writing manuals and other documentation
  • Utilize excellent customer service skills and exceed customers' expectations


Minimum Qualifications:
  • Bachelor's degree in computer science or related field with 1+ years of experience in Information Technology. An associates degree with 3 years of experience, or high school with 6 years of experience can be substituted for a degree.
  • Experience with Microsoft Windows 2008/2012/2016 (or more recent) Servers
  • Experience with Microsoft Windows 10
  • Experience with Microsoft Office 2007/2010/2016
  • Experience with vSphere, Horizon View, data backups, and antivirus software
  • Basic networking experience, including TCPIP
  • Experience with deploying workstation images or zero clients.
  • Experience using a Service Desk ticketing system, such as Remedy or ServiceNow
  • DoD 8570 IAT Level II Certification, ex., Security+ CE
  • DoD 8570 Computing Environment Certification required within 6 months of hire, ex., MCSA, VCP, or equivalent


Preferred Qualifications:
  • ITIL Foundations or later certification highly desired.
  • Willingness to work after normal duty hours (nights and weekends) as needed.
  • Previous customer service experience strongly desired.


Clearance Requirements:
  • Must have a current and active TS/SCI clearance and be willing and able to obtain a poly


Physical Requirements:
  • The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.


The projected compensation range for this position is $71,400.00-$118,700.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

About ManTech International

ManTech International Corporation is an American defense contracting firm that was founded in 1968. The company provides cybersecurity, intelligence, and defense solutions to the United States Government. ManTech has over 9,000 employees and operates in 40 countries worldwide. The company's services include software development, systems engineering, and enterprise IT solutions. ManTech has been awarded numerous contracts by the U.S. Department of Defense and other government agencies.
Learn more about ManTech International
Size
9,800 employees
Market Cap
$3.7 billion
Industry
Net Income
$120.5 million
Founded
1968
5 Year Trend
+9.8%
Revenue
$2.5 billion
NASDAQ

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