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General information

Requisition #
R51691
Locations
USA-VA-Herndon
Posting Date
10/07/2024
Security Clearance Required
TS/SCI
Remote Type
Onsite
Time Type
Full time

Description & Requirements

Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first. At ManTech International, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.

Currently, ManTech is seeking a motivated, career and customer-oriented Senior Network Administrator to join our team. The position may be based in the DC/Maryland/Virginia area, or Chandler, AZ.

Responsibilities include but are not limited to:

  • Design, install, maintain, and configure L2 and L3 network equipment (routers, switches, etc.) 
  • Develop strategic plans for network development and expansion. 
  • Coordinate installation of new hardware/software 
  • Monitor network performance to identify and resolve issues quickly and effectively utilizing network management systems and tools 
  • Assist with incident management, problem management, and change management tickets. 
  • Develop and implement disaster recovery programs. 
  • Follow organizational IT security procedures for network setup, installing firewalls, VPN, IDS/IPS, etc. and monitoring system logs for signs of intrusions. 
  • Collaborate with other team members to troubleshoot complex network issues 
  • Performs other duties as assigned which may require specific physical abilities.  
  • Train and offer guidance /direction to less junior network administrators. 

Basic Qualifications:

  • An IAT II certification
  • A bachelor’s degree in a technical field
  • A minimum of nine (9) years of related experience
  • Understanding of Network Protocols
  • Strong Troubleshooting skills
  • Good communication

Preferred Qualifications:

  • Any of the following certifications: CCNA, Agile, ITIL

Clearance Requirements:  

  • Must be a U.S. citizen 
  • Must hold a TS/SCI clearance 
  • Must be able to obtain DHS EOD suitability
  • An active EOD suitability is highly desired 

Physical Requirements: 

  • Must be able to remain in a stationary position 50% 
  • Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer 
  • The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.


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. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.