ZipRecruiter

Log In

1

Tier Three 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 · On-site

$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 ...

previous pagenext page

Showing results 21-40

All JobsTier Three Network Engineer Jobs

Tier Three Network Engineer information

See salary details

$31K

$109K

$158K

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

As of Aug 11, 2026, the average yearly pay for tier three 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.
More about Tier Three Network Engineer jobs
What cities are hiring for Tier Three Network Engineer jobs? Cities with the most Tier Three Network Engineer job openings:
What states have the most Tier Three Network Engineer jobs? States with the most job openings for Tier Three Network Engineer jobs include:
What job categories do people searching Tier Three Network Engineer jobs look for? The top searched job categories for Tier Three Network Engineer jobs are:
Tier Three Network Engineer jobs near you
Infographic showing various Tier Three Network Engineer job openings in the United States as of August 2026, with employment types broken down into 75% Full Time, and 25% Contract. Highlights an 100% In-person 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

Full-time

Posted 29 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