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Senior Network Engineer with Security Clearance

Imagine One Technology & Management LtdWashington, DC🇺🇸United StatesPosted Sep 30, 2026

Why This Role Stands Out

This hybrid Senior Network Engineer role offers a fantastic opportunity to contribute to critical national security initiatives, leveraging your expertise in secure WAN/LAN infrastructure design and modernization within a highly reputable organization. If you possess a strong background in Cisco technologies, firewall management, and a desire to grow within a dynamic team environment supporting the DoD, this position is ideal for you to make a significant impact. Apply today to explore this exciting career path!

Quick Overview

Seniority
Mid Senior
Employment type
Employee
Work mode
Hybrid
Location
Washington, DC, United States
Posted
Yesterday

Job Description

Imagine One Technology & Management, Ltd. is seeking a Network Engineer, Senior, contingent upon award of the associated work. This position will be based in Washington D.C. The Senior Network Engineer will provide enterprise-level network engineering support for DoD environments, including architecture design, implementation, modernization, and sustainment of secure WAN/LAN infrastructures across classified and unclassified systems.

Key Responsibilities

  • Design, configure, and maintain enterprise WAN/LAN network architectures.
  • Implement and manage routers, switches, firewalls, and secure network devices.
  • Support network modernization and infrastructure upgrades.
  • Perform network troubleshooting, fault isolation, and performance optimization.
  • Develop and maintain network diagrams and configuration documentation.
  • Implement STIGs and support cybersecurity compliance activities.
  • Coordinate with Government stakeholders to support network integration and sustainment.

Desired Experience

  • 10+ years of enterprise network engineering experience.
  • Experience supporting DoD or Navy network environments.
  • Experience with Cisco routing and switching technologies.
  • Experience with firewall configuration (ASA, FirePower, SRX, etc.).
  • Experience supporting ATO accreditation efforts.
  • Familiarity with DISA or Joint network environments.

Education Requirements

  • Master's degree preferred.
  • Bachelor's degree plus four (4) additional years of relevant work experience may be substituted for a Master's degree.

Minimum Certifications

  • Cisco Certified Network Associate (CCNA)/Interconnecting Cisco Network Devices II (ICND2) or equivalent (e.g. Juniper Networks and CompTIA).
  • IAT Level III at contract award (IAT certification in accordance with DODD 8140).

Security Requirements

  • U.S. Citizen.
  • Active TOP SECRET/SCI clearance required.

Imagine One offers a full package of benefits and competitive salary, excellent group medical, vision, and dental programs. 401K savings plan; $4K annual tuition reimbursement ($5K if pursuing master's degree); employee training, development, and education programs; profit sharing; advancement opportunities; and much more! ISO 9001:2015, ISO 20000-1:2018, ISO 27001:2022 CMMI Development and Services - Maturity Level 3 CMMC Level 2 (C3PAO) An Employee-Owned Business EEO/Vets/Disabled

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