Demo

Senior Network Administrator

MANTECH
Gainesville, MS Full Time
POSTED ON 9/30/2025
AVAILABLE BEFORE 1/24/2026
ManTech seeks a motivated, career and customer-oriented Senior Network Administrator to join our team in Stennis, MS.

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. Will also train and offer guidance/direction to less experienced network administrators.
  • 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.

Minimum Qualifications

  • 9 years of related experience and a Bachelor's degree in information technology, computer science, finance, business management, or related degree
  • An IAT II certification
  • Understanding of Network Protocols
  • Strong Troubleshooting skills
  • Good communication

Preferred Qualifications

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

Clearance Requirements

  • Must have a current/active Secret clearance with the ability to obtain and maintain a TS/SCI.
  • The ability to obtain and maintain a DHS EOD suitability is required prior to starting this position.

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.

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