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Leidos

Builds technology for defense and civil agencies

Network Engineer

Network Engineering & AdministrationConfirmed live in the last 24 hours
Full-timeCamp Springs, MD, USA$107.9k - $195.1k

About the Job

Requirements

  • A bachelor's degree with at least 8 years of related experience, or a master's degree with at least 6 years of experience; additional relevant experience may be accepted in lieu of a degree.
  • Currently possess an active Department of Defense Secret security clearance.
  • Hold an active CompTIA Security+ or CCNP Security certification compliant with 8140 requirements.
  • Hold an active CCNA certification compliant with 8140 requirements.
  • Have a strong background in network architecture design, including developing end-to-end infrastructure solutions.
  • Have experience evaluating and recommending new networking technologies and tools.
  • Have experience documenting network architectures, diagrams, procedures, and operational baselines.
  • Have a strong understanding of cybersecurity practices and risk management, especially at OSI Layers 1–3.
  • Have a proven track record of developing technical solutions requiring collaboration and deep analysis.
  • Be able to work independently on high-impact projects or processes with minimal supervision.
  • Have experience with network design and implementation in federal, Department of Defense, or other regulated environments.
  • Be familiar with network accreditation processes, such as Risk Management Framework, Security Technical Implementation Guides, and Department of Defense 8500 series compliance.
  • Have knowledge of Continuity of Operations and Disaster Recovery networking considerations.
  • Be familiar with software-defined networking.
  • Have experience working at the Pentagon, Joint Base Andrews, and Joint Base Anacostia-Bolling.
  • Have knowledge of the Air Force, Pentagon, or Air Force National Capital Region.

Responsibilities

  • Research, build, design, and diagram end-to-end network solutions for assigned projects.
  • Provide specifications for network architecture design and assess current infrastructure to ensure solutions meet customer requirements.
  • Conduct proof of concepts and recommend hardware or software purchases to support new technologies and improve the environment.
  • Conduct site surveys when needed.
  • Serve as the lead network engineer on assigned projects.
  • Develop detailed network designs and architectures aligned with Department of Defense standards.
  • Work with system engineers, project managers, and stakeholders to ensure successful project delivery.
  • Stay current on Department of Defense policies and best practices related to network security and design.
  • Maintain accurate documentation of network configurations, installations, and changes.
  • Oversee installation and configuration of network equipment, including routers, switches, TACLANEs, and firewalls.
  • Design full-scale network solutions including switches, routers, TACLANEs, F5 load balancers, IP management, virtual private networks, Dynamic Host Configuration Protocol, and firewalls.
  • Use Visio to create, maintain, or modify project diagrams, including block, wiring, workflow, database, and application diagrams.
  • Ensure compliance with applicable network security protocols, including 802.1X, Department of Defense Security Technical Implementation Guides, Security Requirements Guides, and other accreditation standards.
  • Collaborate with cross-functional teams to integrate network infrastructure with broader information technology and cybersecurity systems.
  • Test network systems to verify functionality, performance, and security compliance.
  • Troubleshoot and resolve issues arising during installation and testing.
  • Work with procurement teams to identify and source network hardware and software that meet project specifications.

Desired Qualifications

  • Have strong knowledge of protocols, security standards, and design principles for OSI Layers 1–4.
  • Have experience with Cisco technologies such as Cisco Catalyst Center (formerly DNAC) and Cisco Identity Services Engine.
  • Have experience evaluating and recommending new network technologies to improve system capabilities.
  • Be proficient in configuring and troubleshooting Border Gateway Protocol, Open Shortest Path First, and Enhanced Interior Gateway Routing Protocol.
  • Have solid understanding and operational experience with routing and switching technologies and protocols.
  • Have experience managing networking hardware, including routers, switches, and load balancers.
  • Have practical experience in network administration and network security best practices.
  • Be familiar with RSA Authentication.
  • Be familiar with load balancer setup and management to optimize traffic distribution.
  • Have experience in network monitoring, testing, and performance optimization.
  • Have strong written and verbal communication skills and be comfortable working with cross-functional and client-facing teams.

About the Company

Leidos

Builds technology for defense and civil agencies

Leidos develops technology and runs services for defense, intelligence and civilian agencies, as well as healthcare and commercial customers. It combines software and engineering work with systems integration, building secure networks and equipment used in demanding operations. Its portfolio includes medical services, energy infrastructure design and technology that supports military missions, linking specialist businesses under one parent. Customers pay through contracts for delivered systems and services, with payment tied to labor, costs or agreed project milestones. Leidos traces its roots to a company founded in 1969 and is headquartered in Reston, Virginia.

Company size
10,001+
Company stage
IPO
Headquarters
Reston, VA
Founded
1969

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