Demo

Network Engineer III

Reflexive Concepts
Linthicum, MD Full Time
POSTED ON 11/8/2026
AVAILABLE BEFORE 12/6/2026
Reflexive Concepts is seeking a skilled Network Engineer III to join our team!

Qualifications

  • Twelve (12) years of experience supporting projects and programs similar in scope and complexity
  • Bachelor's degree in Computer Science or a related field
  • Active TS/SCI with Full Scope Polygraph dated within the last 6 years

Duties and Responsibilities:

  • Provides assistance in all aspects of network management from network design through implementation, maintenance, and upgrading of existing networks; Analyzes design, specifications, and related documents; Implements communication system requirements to support the distributed functionality of a software engineering environment; Analyzes network characteristics (e.g. traffic connect time, transmission speeds, packet sizes and throughput), troubleshoots problems and recommends procurement of and/or modifications to network components
  • Support the “Know your Network” Zero Trust Architecture Capabilities
  • Responsible for implementing the Forward Networks commercial tool to capture, organize, and maintain all Mission Island network inventory, network maps, and associated vulnerabilities plus help integrate the inventory with High Side network enterprise model

Required:

  • Strong understanding of computer networking architecture (Firewalls, Routers, Switches, Protocols, etc.)
  • Proficiency with understanding configurations from multiple vendors such as Cisco, Palo Alto, Juniper, etc.
  • Experience with Zero Trust related activities (hardening systems, customer ZT compliance requirements)
  • Previous technical experience with system administration on Red Hat Enterprise Linux or similar
  • Ability to read and understand system configuration files to verify correct ingestion into Forward Networks
  • IAT Level 3 cert is required

Desired:

  • Forward Networks/Redseal experience or comparable network modeling tool
  • Networking certifications such as CCNP, JNCIP, AWS Certified Advanced Networking, or equivalent

Salary.com Estimation for Network Engineer III in Linthicum, MD
$140,240 to $162,387
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