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Sr Network Infrastructure Engineer Jobs in Washington

AAC

Network Engineer

Fairfax, VA · On-site

Senior Network Engineer (CONUS) Location: Washington, DC, San Antonio, TX, or Honolulu, HI Security ... Participate in network modernization initiatives, technology refresh projects, infrastructure ...

Agile Defense

Senior Network Engineer

Ashburn, VA · Hybrid

$106K - $145K/yr

... network infrastructure. The applicant will be responsible for engineering, maintaining, configuring, and troubleshooting wide-area networks (WAN), local-area networks (LAN), SDWAN, Virtual Private ...

Leidos

Senior Network Engineer

Lorton, VA · On-site

$105K - $144K/yr

The position supports the engineering, deployment, modernization, and sustainment of network infrastructure across multiple customer locations. The Senior Network Engineer will serve as a senior ...

Leidos

Senior Network Engineer

Lorton, VA · On-site

$105K - $144K/yr

The position supports the engineering, deployment, modernization, and sustainment of network infrastructure across multiple customer locations. The Senior Network Engineer will serve as a senior ...

Leidos

Senior Network Engineer

Lorton, VA · On-site

$107K - $195K/yr

The position supports the engineering, deployment, modernization, and sustainment of network infrastructure across multiple customer locations. The Senior Network Engineer will serve as a senior ...

Via Logic LLC

Senior Network Engineer

Lorton, VA · On-site

$108 - $195/hr

The position supports the engineering, deployment, modernization, and sustainment of network infrastructure across multiple customer locations. The Senior Network Engineer will serve as a senior ...

Computer Merchant, Ltd., The

Sr Network Engineer

Lorton, VA · On-site

$105K - $144K/yr

JOB TITLE: SR NETWORK ENGINEER JOB LOCATION: LORTON, VA WAGE RANGE*: 110.00-115.00 PER HOUR JOB ... Support the ITP network infrastructure, perform all routine maintenance activities, provide ...

Xpect Solutions

Senior Network Engineer

Quantico, VA

$110K - $150K/yr

Senior Network Engineer ID: 1000000082 Location: Quantico,VA Clearance Level: Active Top Secret ... complex network infrastructure environment to include multiple enclaves comprising various ...

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Sr Network Infrastructure Engineer information

What does a Sr Network Infrastructure Engineer do?

A Sr Network Infrastructure Engineer is responsible for designing, implementing, and maintaining complex computer networks within an organization. This role involves ensuring network security, optimizing performance, and troubleshooting issues to support business operations. They often work with routers, switches, firewalls, and other network hardware, as well as collaborate with IT teams to support projects and upgrades. Senior engineers also play a key role in planning network growth and integrating new technologies.

What are the key skills and qualifications needed to thrive as a Sr Network Infrastructure Engineer?

To thrive as a Sr Network Infrastructure Engineer, you need deep expertise in network architecture, routing and switching, and a strong understanding of security protocols, typically supported by a bachelor's degree in a related field and relevant certifications like CCNP or CCIE. Proficiency in configuring and maintaining network hardware (e.g., Cisco, Juniper), network monitoring tools, and automation platforms is essential. Exceptional problem-solving, communication, and project management skills help you lead initiatives and collaborate across departments. These skills and qualities are vital for ensuring reliable, secure, and scalable network operations in complex enterprise environments.

What are some typical challenges a Sr Network Infrastructure Engineer faces when managing large-scale network deployments?

Sr Network Infrastructure Engineers often encounter challenges such as ensuring network scalability, minimizing downtime during upgrades, and integrating new technologies with legacy systems. They must also address security vulnerabilities and maintain high performance across complex, multi-site environments. Effective communication and collaboration with cross-functional teams, such as security and cloud operations, are essential to successfully navigate these challenges and maintain robust network infrastructure.

What is the difference between Sr Network Infrastructure Engineer vs Network Engineer?

AspectSr Network Infrastructure EngineerNetwork Engineer
CertificationsCCNA, CCNP, Cisco certificationsCCNA, CompTIA Network+
Work EnvironmentData centers, enterprise networks, large-scale infrastructureSmall to medium business networks, office environments
ResponsibilitiesDesign, implement, and maintain complex network infrastructureConfigure and troubleshoot network devices and connections

The main difference is that Sr Network Infrastructure Engineers focus on large-scale, complex network systems and often hold advanced certifications, while Network Engineers typically handle day-to-day network setup and troubleshooting in smaller environments. Both roles require strong networking skills but differ in scope and complexity.

What are popular job titles related to Sr Network Infrastructure Engineer jobs in Washington?

For Sr Network Infrastructure Engineer jobs in Washington, the most frequently searched job titles are:

What job categories do people searching Sr Network Infrastructure Engineer jobs in Washington look for?

The top searched job categories for Sr Network Infrastructure Engineer jobs in Washington are:

Sr Network Infrastructure Engineer jobs near you
Infographic showing various Sr Network Infrastructure Engineer job openings in Washington as of August 2026, with employment types broken down into 1% As Needed, 82% Full Time, 11% Part Time, and 6% Contract. Highlights an 90% Physical, 2% Hybrid, and 8% Remote job distribution.

Senior Network Engineer

Essnova Solutions, Inc.

Washington, DC • On-site

$117K - $161K/yr

Full-time

Re-posted 18 days ago

Job description

Senior Network EngineerAbout Essnova Solutions

Essnova Solutions is a fast-growing federal contractor delivering innovative technology, cybersecurity, cloud, and digital transformation solutions to Federal Government customers. We are seeking a highly skilled Senior Network Engineer to support an upcoming federal program focused on enterprise infrastructure modernization, Zero Trust implementation, cybersecurity, and network resiliency. *This is for a proposal opportunity*

Position Overview

The Senior Network Engineer will serve as a technical leader responsible for designing, implementing, securing, and maintaining enterprise network infrastructure supporting mission-critical federal operations. This role requires deep expertise in Cisco networking technologies, network security, Zero Trust architecture, and federal IT environments.

Responsibilities
  • Design, implement, and maintain secure enterprise network architectures
  • Lead network modernization and infrastructure improvement initiatives
  • Design and support core, distribution, and edge network environments
  • Configure and maintain routing, switching, firewalls, VPNs, DNS, and DHCP services
  • Implement Zero Trust principles including segmentation, micro-segmentation, and least-privilege access controls
  • Integrate network telemetry and monitoring capabilities with SIEM and security platforms
  • Lead vulnerability remediation and network hardening activities
  • Support incident response efforts through network analysis, containment, and remediation
  • Develop and maintain network architecture diagrams, SOPs, and technical documentation
  • Collaborate with cybersecurity, cloud engineering, and infrastructure teams to improve security posture and operational resilience
  • Support lifecycle management, upgrades, and technology refresh initiatives

Requirements

Required Qualifications
  • Bachelor's degree in Information Technology, Computer Science, Engineering, or related field (or equivalent experience)
  • 8+ years of enterprise network engineering experience
  • Expert-level experience with Cisco networking technologies
  • Strong knowledge of routing, switching, VPNs, DNS, DHCP, and network architecture
  • Experience designing and supporting highly available enterprise networks
  • Experience implementing network security controls and best practices
  • Knowledge of NIST cybersecurity frameworks and federal security requirements
  • Experience supporting incident response and vulnerability management activities
  • Ability to obtain and maintain a Public Trust clearance
Preferred Qualifications
  • CCNP Enterprise, CCIE, or equivalent certification
  • Experience with Palo Alto, Cisco Firepower, Cisco ISE, or similar technologies
  • Experience implementing Zero Trust architecture
  • Experience supporting federal government environments
  • Familiarity with RMF, FISMA, and NIST 800-53 requirements
  • Experience integrating network telemetry with SIEM platforms such as Splunk, Sentinel, or similar solutions
  • Experience with SD-WAN technologies
Clearance

Public Trust (Tier 2) clearance

Location

Hybrid work environment with occasional onsite support as required.