Mid or Senior Level Network Engineer with Security Clearance

System One Holdings, LLCLorton, VA🇺🇸United StatesPosted Sep 28, 2026

Why This Role Stands Out

This hybrid role offers significant career growth as a primary technical expert in a mission-critical government environment, with competitive hourly compensation ranging from $77.75 to $120.00. You'll thrive here if you possess strong network engineering and security experience, a CCNP certification, and a desire to contribute to impactful modernization efforts. Apply today to leverage your skills in a dynamic and secure setting.

Quick Overview

Salary

$78 - $120/hr

Seniority

Mid Senior

Employment type

Employee

Work mode

Hybrid

Location

Lorton, VA, United States

Posted

3 days ago

Active DirectoryVMware

Job Description

Job Title: Mid or Senior Level Network Engineer
Location: Lorton VA
Type: Contract To Hire
Compensation: $77.75 - $120.00/hr. (Depending on years of experience)
Work Model: Hybrid
Hours: 40.0
Security Clearance: Active TS with SCI eligibility
Overview
This is a senior-level network engineering role supporting a mission-critical government environment. The position focuses on network infrastructure management, network security, cross-domain solutions, and modernization efforts, while serving as the primary technical expert for enterprise networking operations.
Responsibilities

Support the ITP network infrastructure, perform routine maintenance activities, and provide guidance on upgrades and system recapitalization.
Oversee High Speed Guard Cross Domain solution supporting data transfer between multiple classification domains.
Support all documentation to effectively capture the configuration baseline.
Design and support system recapitalization plans to accommodate capacity growth and changes as directed by the customer.
Serve as the subject matter expert on all ITP network infrastructure.

Requirements

Bachelor's degree with at least 8+ years of relevant experience or Master's degree with 6+ years of relevant experience.
Cisco Certified Network Professional (CCNP) certification.
Experience deploying and managing LAN and WAN Switches and Firewalls, including Cisco 2900, 4500, 9300, 9400, 6800, Nexus 9000, and Cisco Firepower, ASA.
Strong knowledge of defense-in-depth principles, network security architecture, and common security elements.
Experience with installation, configuration, and maintenance of network equipment.
Experience with incident lifecycle management, incident response, and mitigation strategies.
Network management experience with Solarwinds, WhatsUP Gold, NetQoS, NetBrain; familiar with VMWARE, Linux, Microsoft Server, and Active Directory.
Ability to build firewall policies and optimize rules for threat prevention.
Support for ATO reviews and audits.
Ability to obtain DHS EOD SCI clearance.
Education: BS degree; preferred Master's in IT Management, Engineering, or related field.
Strong communication skills and ability to work collaboratively in a team environment.