Network and Computer Systems Administrator

General information

Requisition # R66638 Locations USA-MD-Belcamp Posting Date 03/12/2026 Security Clearance Required Secret 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 Network and Computer Systems Administrator to join our team in Belcamp, MD.

The Network and Computer Systems Administrator will work in support of the Army for the Network Modernization & Mission Network Technical Service Support program (NetMod). NetMod sets forth the work efforts required to provide product technical support services for systems and equipment being produced, fielded, modified or supported by PdM Network Modernization (NetMod) and PdM Mission Network of the Project Manager (PM) Tactical Network (TN) of the Program Executive Office for Command Control and Communications-Tactical (PEO C3T). This support may also include future systems and equipment that is acquired for the Army to maintain its technological advantage.

Job responsibilities include but are not limited to:

• Must be capable of managing the servers, which typically involves installing and upgrading the servers, as well as solving any kind of problems with the systems
• Must provide the essential software support for the laptops, desktop personal computers, and printers, including the configuration of the hardware devices, testing new software and designing the structure of the network
• Must be capable of monitoring the system configuration, including the server event log.
• Must be capable of testing the operating system software, the networking software and also the computer hardware
• Must be capable of monitoring and developing the procedures for backups of the servers
• Support network security by managing user permissions and implementing protective measures against cyber threats. 

Minimum Qualifications:

• Bachelor of Science degree and 10+ years of relevant experience as a Network or Computer Systems Administrator.
• 5+ years in the Department of Defense supporting network administration or related duties.  
• Familiarity with network hardware like routers, switches, firewalls, and servers. 
• Knowledge of TCP/IP, information security/authorization profiles, or system administration of Unix or Windows networks/systems
• Experience monitoring network performance, identifying and resolving issues, performing routine maintenance tasks on network devices like routers, switches, and firewalls. 
• Experience diagnosing and resolving network connectivity issues, performance bottlenecks, and hardware failures. 

Preferred Qualifications:

• Experience performing regular data backups and ensuring the ability to recover critical systems in case of emergencies.  
• Experience assessing network needs and planning for future infrastructure upgrades. 
• Expertise in network management tools, security software, and configuration management systems. 
• While an advanced degree is preferred, technical mastery demonstrated through additional years of specialized experience may substitute for the degree requirement, pending client-approved educational waivers.

Clearance Requirements:

• Must be a US citizen and have a current/active Secret clearance

Physical Requirements:

• Must be able to remain in a stationary position 50% of the time. 
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• 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 $77,200.00-$128,800.00. 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 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.