Senior Network Engineer

ManTech - Chantilly, VA

Full-time - Mid Level

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.
• Responsible for the overall integration of a total network (black and red) including design, installation, maintenance, management, and coordination of a moderately sized and constantly growing network with multiple external sites.
• Creating and maintaining documentation, diagrams, and standard operating procedures.
• Working with other 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 a wide range of areas including initially setting up, maintaining, or recovering customer sites, Cisco VoIP, VTC, Cisco Data Center, Cisco Security, etc.
• Efficiently resolving escalated trouble tickets.
• 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 a variety of engineering tasks.
• Attention to detail, ability to work independently, organization/time management skills.

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 a big plus
• Cisco Data Center certification a plus
• Cisco Security certification a plus
• Comfortable on the CLI
• Comfortable interfacing with Government leadership.

Benefits

• Career growth opportunities
• Training opportunities