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General information

Requisition #
R63728
Locations
USA-DC-Washington
Posting Date
10/30/2025
Security Clearance Required
TS/SCI
Remote Type
Onsite
Time Type
Full time

Description & Requirements

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!

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

Responsibilities include, but are not limited to: 

  • Install, configure, and support computer systems and peripheral hardware including memory, drives, network cards, media converters, routers, switches, and printers

  • Administer and troubleshoot Windows-based servers and workstations both locally and remotely

  • Perform system tasks such as adding/removing users, software installation, monitoring systems, and daily user assistance

  • Provide remote support by identifying issues through diagnostic techniques, escalating unresolved issues, and ensuring complete resolution and documentation

  • Support operational continuity by logging tickets accurately, tracking incident status, and maintaining detailed records of problem-solving actions

  • Assist in deploying IT hardware through base configurations, coordinating logistics, shipping equipment, and validating receipt and inventory

  • Conduct remote site surveys to determine hardware and cabling requirements and complete other duties as assigned

Minimum Qualifications:

  • Bachelor's degree in a STEM field with 2+ years of Systems Administration experience; an Associates degree with 4+ years of Systems Administration experience, or a High School Diploma and 6+ years of Systems Administration experience may be substituted for a Bachelor’s degree

  • DoD 8570 IAT Level 2 certification required, e.g., Security+ CE, CCNA Security, CND or SSCP

  • Knowledge of Microsoft Windows 10 and Windows 2016 Server

  • 2+ years of experience with Microsoft Windows Systems and VMware desktops

Preferred Qualifications:

  • ITILv4 Foundations certification

  • Excellent analytical and troubleshooting skills

  • Excellent maintenance organizational skills

Clearance Requirements:

  • Must possess a current/active TS/SCI clearance and be willing and able to obtain a polygraph

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 $96,100.00-$159,900.00. 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.

MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.