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Full time
Technology
MA

Network Engineer

MANTECHChantilly, Virginia🇺🇸United StatesPosted 7 Sept 2026

Why This Role Stands Out

Advance your career with MANTECH by designing and implementing cutting-edge network solutions, where your expertise in complex systems will drive critical infrastructure improvements. This role is ideal for a seasoned Network Engineer who thrives on technical challenges and collaborative problem-solving, offering a fantastic opportunity to grow within a reputable organization. You'll be instrumental in shaping advanced WAN, LAN, and data center environments, making this an exciting path for ambitious professionals.

Quick Overview

Seniority
Mid Senior
Employment type
Full Time
Work mode
On Site
Location
Chantilly, Virginia, United States
FiberAnsibleVMware

Job Description

MANTECH seeks a motivated, career and customer-oriented Network Engineer to join our team in Chantilly, VA. This is an onsite position.

Responsibilities include but are not limited to:

  • Perform Tier II and Tier III network engineering support, while designing advanced WAN, LAN, and data center solutions

  • Monitor and configure networks utilizing SolarWinds, Cisco DNAC, and Cisco ISE to analyze complex network requirements and ensure complete, functioning infrastructure

  • Create, maintain, and interpret highly detailed technical network diagrams, routing topology schemas, and robust hardware configuration baselines

  • Coordinate across large internal teams, stakeholders, and Sponsor authorities to drive infrastructure agendas and successfully navigate systems engineering processes

  • Participate in all phases of the ITIL Service Lifecycle, including submitting Change Requests and maintaining security event monitoring policies

  • Evaluate current network architectures, inventory complex routing pathways, and recommend process improvements to optimize performance and throughput

  • Deliver end-to-end functional analysis, requirements specification, cost estimation, and engineering package releases for customer production IT environments

Minimum Qualifications:

  • High School Diploma or GED with 7+ years of progressively responsible experience in Network Engineering, Network Analysis, or a related technical discipline

  • Cisco Certified Network Associate (CCNA) certification, or equivalent routing/switching technical certification, ex., Juniper Networks Certified Associate - Junos (JNCIA-Junos)

  • DoD 8570 IAT Level II Certification, e.g., Security+

  • DoD 8570.1 / DoD 8140.01 (IAT III Level) certification required within 6 months of hire, e.g., SecurityX

Preferred Qualifications:

  • Bachelors degree in an engineering discipline

  • Experience using and administering SolarWinds alongside deep knowledge of Microsoft Windows Systems, HP SANs, and VMware products

  • Advanced experience managing VPNs, GRE tunnels, routing protocols (BGP E/I, OSPF), VLANs, VRFs, and configuring KGs

  • Strong familiarity with Cisco ACI, data center fabric best practices, Ansible, and Desired State Configuration (DSC)

  • Practical knowledge of BICSI standards, terminating fiber and Cat 5 cabling, as well as familiarity with NSTISSAM TEMPEST/2-95 and CNSSAM TEMPEST/01-13 guidelines

Clearance Requirements:

  • Must have a current and active TS/SCI clearance

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.

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