Systems Administrator

General information

Requisition # R65249 Locations USA-MD-Hanover Posting Date 01/12/2026 Security Clearance Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time

Description & Requirements

Elevate your career with MANTECH International Corporation! Join a dynamic team dedicated to national security through cutting-edge technology. Since 1968, MANTECH has led in delivering advanced solutions to government intelligence, the Department of Defense, and Federal Civilian sectors. Dive into innovation in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Your journey to impactful work and rapid growth starts now—be extraordinary at MANTECH!

MANTECH seeks a motivated, career and customer-oriented Systems Administrator to join our team in Hanover, MD.

Occasional travel local to Denver, CO, San Antonio, TX and Herndon, VA with minimal off hour/weekend support.

Responsibilities include, but are not limited to:        

• Configures and manages Windows-based servers, workstations, and laptops.
• Responsible for the upkeep, configuration, and reliable operation of computer systems. System administrator will ensure the uptime, performance, resources, and security of the computers they manage meet the needs of the users.
• Uses scripting or basic programming skills to solve problems.
• Installs and configures Windows systems including back-end databases and scripts.
• Performs systems maintenance by reviewing error logs.

Minimum Qualifications:

• 4 years’ experience in Windows Systems Administration with Active Directory and SANS
• Bachelor’s degree in computer science or similar Information Technology focused major.  A degree can be substituted for 4 years of additional experience
• Experience in Windows environments.
• Ability to troubleshoot issues with Windows systems and solve a range of problems independently.
• MCSE / Azure certification required – Must know and understand Active Directory
• SME on Active Directory, Hyper-V Cluster, SAN, Remote Desktop Services, IIS, File Print
• Working knowledge of routers, switches -Cisco IOS

Security Clearance Requirements:

• Must have a current/active TS/SCI w/Poly

Physical Requirements:

• Must be able to remain in a stationary position 50%.
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• Often positions self to maintain computers in the lab, including under the desks and in the server closet. Ability to lift and handle up to 75 pounds.
• Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

The projected compensation range for this position is $105,800.00-$175,900.00. 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.