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Tier 3 Network Engineer Jobs (NOW HIRING)

MANTECH

Perform Tier II and Tier III network engineering support, while designing advanced WAN, LAN, and data center solutions. * Monitor and configure networks utilizing SolarWinds, Cisco DNAC, and Cisco ...

MANTECH

Perform Tier II and Tier III network engineering support, while designing advanced WAN, LAN, and data center solutions. * Monitor and configure networks utilizing SolarWinds, Cisco DNAC, and Cisco ...

DMI

Tier 3 Network Lead

Washington, DC

$109K - $119K/yr

Learn more at www.dminc.com About the Opportunity DMI, LLC is seeking a Tier 3 Network Lead who owns the performance of wired and wireless infrastructure across four distributed sites and manages the ...

Leidos

Tier III Senior Network Engineer

Tampa, FL · On-site

$98K - $134K/yr

Leidos has an opening for a highly motivated Tier III Senior Network Engineer at MacDill AFB, FL. As the Senior Network Engineer, you will support the Global Solutions Management-Operations II (GSM-O ...

Leidos

Tier III Senior Network Engineer

Tampa, FL · On-site

$73K - $132K/yr

Leidos has an opening for a highly motivated Tier III Senior Network Engineer at MacDill AFB, FL. As the Senior Network Engineer, you will support the Global Solutions Management-Operations II (GSM-O ...

Leidos

Tier III Senior Network Engineer

Tampa, FL · On-site

$98K - $134K/yr

Leidos has an opening for a highly motivated Tier III Senior Network Engineer at MacDill AFB, FL. As the Senior Network Engineer, you will support the Global Solutions Management-Operations II (GSM-O ...

Leidos

Tier III Senior Network Engineer

Tampa, FL · On-site

$73K - $132K/yr

Leidos has an opening for a highly motivated Tier III Senior Network Engineer at MacDill AFB, FL. As the Senior Network Engineer, you will support the Global Solutions Management-Operations II (GSM-O ...

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All JobsTier 3 Network Engineer Jobs

Tier 3 Network Engineer information

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$31K

$109K

$158K

How much do tier 3 network engineer jobs pay per year?

As of Aug 11, 2026, the average yearly pay for tier 3 network engineer in the United States is $109,040.00, according to ZipRecruiter salary data. Most workers in this role earn between $89,000.00 and $133,500.00 per year, depending on experience, location, and employer.

What is the difference between Tier 3 Network Engineer vs Tier 2 Network Engineer?

AspectTier 3 Network EngineerTier 2 Network Engineer
CertificationsCCNP, JNCIP, or equivalentCCNA, JNCIA, or equivalent
Work EnvironmentAdvanced troubleshooting, complex network issues, designMonitoring, basic troubleshooting, support
ResponsibilitiesResolving escalated issues, network optimization, configurationRoutine support, ticket resolution, user assistance

Both roles require networking certifications and involve working in enterprise environments. Tier 3 Network Engineers handle complex problems and network design, while Tier 2 Network Engineers focus on support and troubleshooting. The main difference lies in the complexity of tasks and level of expertise required.

How much does a Tier 3 network engineer make?

A Tier 3 network engineer typically earns between $80,000 and $120,000 annually, depending on experience, certifications, and location. They often possess advanced skills in network troubleshooting, security, and specialized tools, and may work in environments requiring on-call availability.

What are the key skills and qualifications needed to thrive as a Tier 3 network engineer, and why are they important?

To thrive as a Tier 3 Network Engineer, you need advanced expertise in network design, troubleshooting, and protocols such as BGP, OSPF, and MPLS, often supported by a bachelor's degree in IT or related field and certifications like CCNP or CCIE. Familiarity with network monitoring tools, firewalls, routers, switches, and ticketing systems is typically required. Strong analytical thinking, problem-solving abilities, and effective communication set top performers apart in this role. These skills are crucial for resolving complex network issues, ensuring uptime, and supporting critical business operations.

What is a Tier 3 network engineer?

Tier 3 Network Engineers are highly skilled IT professionals responsible for resolving the most complex network issues that cannot be solved by lower-tier support teams. They design, implement, and troubleshoot advanced network systems, often working with enterprise-level hardware and software. These engineers play a critical role in maintaining network performance, security, and reliability, and may also assist in developing network policies and best practices. In addition, they often collaborate with vendors and other IT departments to address critical outages or implement new technologies.

What types of complex issues does a Tier 3 network engineer typically handle, and how do these differ from Tier 1 or Tier 2 support tasks?

Tier 3 Network Engineers are responsible for resolving the most advanced and intricate network problems that cannot be addressed by Tier 1 or Tier 2 support teams. These issues often involve deep-rooted configuration errors, security breaches, large-scale outages, or performance bottlenecks affecting critical business systems. Tier 3 engineers typically work closely with network architects and other IT specialists to analyze, diagnose, and implement long-term solutions. They may also be involved in network design improvements and provide mentorship to lower-tier staff, ensuring knowledge transfer and best practices.
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What job categories do people searching Tier 3 Network Engineer jobs look for? The top searched job categories for Tier 3 Network Engineer jobs are:
Tier 3 Network Engineer jobs near you
Infographic showing various Tier 3 Network Engineer job openings in the United States as of August 2026, with employment types broken down into 90% Full Time, and 10% Contract. Highlights an 95% In-person, and 5% Remote job distribution, with an average salary of $109,040 per year, or $52.4 per hour.

Network Tier 3 Engineer

DecisionPoint | Cortek

Scott Air Force Base, IL • On-site

Full-time

Posted 28 days ago

Job description

DecisionPoint seeks a Network Tier 3 Engineer to provide advanced network engineering support for the U.S. Air Force Executive Airlift Communications Network program. The engineer will analyze, design, configure, test, and sustain network infrastructure supporting secure voice, video, and data communications across operational Air-to-GIG Gateways and the EACN Systems Integration Laboratory. 

The Network Tier 3 Engineer will support network architecture, configuration management, troubleshooting, performance optimization, technology integration, and implementation of approved hardware and software changes. The engineer will also help maintain the EACN baseline configuration and ensure modifications are tested in the Systems Integration Laboratory before deployment to operational environments.  

This position requires on-site performance at Scott Air Force Base, Illinois, and may require travel to Joint Base Andrews, Joint Base Lewis-McChord, or other supported locations. 

Note: By applying to this position, you acknowledge and consent to having your resume included in an active competitive government contract bid. 


The Network Tier 3 Engineer will: 

  • Provide advanced network analysis, design, engineering, and technical support for EACN infrastructure.  
  • Evaluate and recommend technologies that improve network performance, resilience, security, and mission capability.  
  • Maintain the EACN baseline configuration and supporting Systems Integration Laboratory environment.  
  • Install and functionally test software versions, patches, technical orders, security updates, and configuration changes.  
  • Validate hardware, software, and network modifications in the laboratory before operational deployment.  
  • Troubleshoot complex network issues affecting operational gateways, connected platforms, and supported mission systems.  
  • Configure and sustain routers, switches, firewalls, servers, encryption devices, VoIP components, and network-management tools.  
  • Support network upgrades, equipment replacement, system cutovers, and integration of new transport capabilities.  
  • Develop and maintain network installation guides, topology diagrams, checklists, configuration records, and technical documentation.  
  • Create scripts, executables, graphs, and maps supporting network configuration, monitoring, and analysis.  
  • Monitor network availability, utilization, outages, capacity, and overall system health.  
  • Perform system backups, disk management, patching, and approved server-maintenance activities.  
  • Design and implement fault-tolerant and disaster-recovery solutions for network devices and servers.  
  • Support Voice over Internet Protocol capabilities across the laboratory and operational gateway environments.  
  • Coordinate technical activities with Government engineers, cybersecurity personnel, site technicians, and mission partners.  
  • Train incoming Government and contractor personnel on EACN network configurations and operating standards.  
  • Ensure network changes comply with DISA STIGs, USCYBERCOM directives, Air Force requirements, and approved configuration-management processes.  

Clearance Requirement: 

Must hold an active Top Secret clearance. 

Education: 

Bachelor’s degree in Information Technology, Computer Science, Network Engineering, Systems Engineering, or a related field. 

Experience: 

  • Minimum five years of relevant network engineering experience. 
  • Experience designing, configuring, troubleshooting, and sustaining enterprise LAN and WAN environments. 
  • Experience supporting routers, switches, firewalls, VLANs, VPNs, TCP/IP, network-management systems, and secure communications infrastructure. 
  • Experience working in classified or mission-critical Department of Defense enviro

Apply