Network Administrator

MANTECH is seeking a motivated, career and customer-oriented Network Administrator to join our team in Chantilly, VA . This is a position requiring onsite work at customer locations within the local area (up to 10% travel). This is a mentored Network Administrator given guidance by a senior network engineer.

Responsibilities include but are not limited to:

• Designing and integrating comprehensive network, VoIP, VTC, and data center
  solutions, adhering to security guidelines and customer specifications to ensure
  robust and secure communication infrastructures.

• Managing the end-to-end integration of black and red networks, overseeing
  design, installation, maintenance, and coordination of a growing network with
  multiple external services to support operational needs.

• Diagnosing and resolving complex issues related to customer sites,
  telecommunications circuits, routing, switching, VoIP, VTC, network encryption
  devices, and Cisco data center/security to maintain network stability and
  performance.

• Developing and maintaining detailed documentation, diagrams, and standard
  operating procedures to facilitate knowledge sharing and efficient network
  management.

• Providing expert guidance, training, and support to network administrators,
  service desk personnel, and junior engineers to enhance team capabilities and
  operational effectiveness.

Minimum Qualifications:

• Bachelors degree in Computer Science, Network Engineering, or equivalent field, demonstrating a strong academic foundation in related disciplines (additional 1 years of experience may be substituted in lieu of degree)

• 0-3 years of related experience in networking. Knowledge of VoIP, VTC, data circuits, and network encryption devices (e.g., General Dynamics TACLANE).

• Experience with routing protocols such as OSPF and BGP, with an understanding of MPLS and DMVPN technology for efficient network routing.

• DoD 8140 IAT Level II certification: SecurityCE and Computing Environment (CE) certification in Cisco technology (CCNA Voice) required.

• Valid US Drivers License with the ability to travel up to 10% locally to customer sites.

Preferred Qualifications:

• Cisco Collaboration, Data Center, or Security certifications, indicating advanced expertise and specialized knowledge in relevant Cisco technologies.

• Experience implementing or troubleshooting VMware NSX-T virtualized networking and security platform developed by VMware. It enables automated implementation of network policies, network objects, isolation, and micro-segmentation.

Clearance Requirements:

• Must have a current/active TS/SCI with the ability to obtain a CI 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