Senior Network Engineer

ManTech - Chantilly, VA

Full-time - Senior

Chantilly, VA

Professional, Scientific, and Technical Services

About the position

The Senior Network Engineer at ManTech is responsible for designing, installing, and maintaining network systems for remote customer sites and core data centers. This role requires strong troubleshooting and problem-solving skills, along with excellent communication abilities. The position offers numerous opportunities for career growth and training.

Responsibilities

• Designing network, VoIP, VTC, Cisco CMS and TMS, and Cisco Call Manager (CUCM).
• Analyzing and planning capacity growth and overall scalability of the network.
• Integrating a total network (black and red) including design, installation, maintenance, management, and coordination of a moderately sized and growing network with multiple external sites.
• Creating and maintaining documentation, diagrams, and standard operating procedures.
• Collaborating with internal support teams to devise solutions for complex operational problems within multiple data centers and a distributed IT infrastructure.
• Providing guidance and training for network administrators, service desk personnel, and junior engineers.
• Diagnosing, troubleshooting, and resolving issues related to various areas including customer site setup, Cisco VoIP, VTC, Cisco Data Center, and Cisco Security.
• Resolving escalated trouble tickets efficiently.
• Ensuring the network environment has STIGs properly applied and implementing necessary security controls.
• Providing client consulting and training on interfacing with various types of hardware and software.
• Participating on project teams responsible for various engineering tasks.

Requirements

• Bachelor's degree in computer science or equivalent or at least 8 to 10 years' experience with networking in VoIP, VTC, data circuits, MS Office including Visio, Word, and Excel.
• Knowledge in voice technologies like Voice over IP, SIP, TCPIP, QOS, H.323, etc.
• DoD 8140 IAT Level II required: Security CE and Computing Environment (CE) certification in Cisco technology (CCNA Voice) required and (CCNP) desired.
• Active Top-Secret Clearance with investigation within 5 years. Active SCI or active SCI Eligibility required.

Nice-to-haves

• Cisco Collaboration certification
• Cisco Data Center certification
• Cisco Security certification

Benefits

• Numerous career growth opportunities
• Training opportunities