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Tier 3 Network Engineer Jobs (NOW HIRING)

DMI

Tier 3 Network Lead

Washington, DC · On-site

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 ...

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

As of Jun 9, 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.

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 are Tier 3 Network Engineers?

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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Tier 3 Network Engineer jobs near you

Tier 3 Network Lead

DMI

Washington, DC • On-site

Other

Medical, Life, Retirement

Posted 11 days ago

Job description

About DMI

DMI is a leading provider of digital services and technology solutions, headquartered in Tysons Corner, VA. With a focus on end-to-end managed IT services, including managed mobility, cloud, cybersecurity, network operations, and application development, DMI supports public sector agencies and commercial enterprises around the globe. Recognized as a Top Workplace, DMI is committed to delivering secure, efcient, and cost-effective solutions that drive measurable results. 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 full incident lifecycle across LAN, WAN, and cloud environments. This role is the senior technical authority for routing, switching, and network monitoring, directing Tier 1/2 escalations, coordinating ISP relationships, and leading network change management within an ITSM framework to ensure 24x7x365 availability.

Duties and Responsibilities:

  • Monitor and maintain LAN/WAN performance using SolarWinds Orion, including alert dependency configuration; diagnose and resolve outages, routing loops, circuit failures, and hardware faults
  • Manage wired and wireless infrastructure including Aruba IAP-734/735 APs, Aruba CX6300 switches, HPE Aruba Central, Cisco IOS, HP Switch CLI, TACACS+, and Wireshark
  • AWS CloudWatch; analyze trend data proactively to identify degrading hardware or flapping interfaces before service impact
  • Lead P1/P2 root cause analysis and stakeholder communications; maintain the Known Error Database (KEDB)
  • Coordinate with ISPs on circuit installation, upgrades, and outage restoration; support data center operations and DAS infrastructure management
  • Provide technical direction to network support staff; partner with customer IT Security on NIST-aligned network security assessments
Qualifications

Required Skills & Certifications: 

  • Expert-level knowledge of routing/switching protocols and multi-site LAN/WAN environments
  • Proficiency in SolarWinds Orion, Cisco IOS, Aruba Central, TACACS+, and Wireshark
  • Familiarity with ITIL 4 Incident and Problem Management
  • Required Certification: CCNP

Citizenship Status Required: Must be a U.S. Citizen

 

Physical Requirements: None required for this position.

 

Location: Washington, DC (Onsite, 7AM-6PM Monday-Friday)

#LI-JL1

Working at DMI

DMI is a diverse, prosperous, and rewarding place to work. Our culture is shaped by five core values that guide how we work, grow, and succeed together:

  • Do What's Right - We lead with honesty and integrity.
  • Own the Outcome - We take responsibility and deliver.
  • Deliver for Our Customers - We are relentless about delivering value.
  • Think Bold, Act Smart - We innovate with purpose.
  • Win Together - We collaborate and celebrate our success.

These values aren't just ideals-they show up in how we support every part of your well-being:

  • Convenience/Concierge - Virtual health visits, commuter perks, pet insurance, and entertainment discounts that make life easier.
  • Development - Annual performance reviews, tuition assistance, and internal career growth opportunities to help you thrive.
  • Financial - Generous 401(k) matches, life and disability insurance, and financial wellness tools to support your future.
  • Recognition - Annual awards, service anniversaries, referral bonuses, and peer-to-peer shoutouts that spotlight your achievements.
  • Wellness - Healthcare coverage, wellness programs, flu shots, and biometric screenings to support your health.

DMI values employees for their talents and contributions, and we take pride in helping our customers achieve their goals. Because when we live our values, we all win together.

No Agencies Please

Applicants selected may be subject to a government security investigation and must meet eligibility requirements for access to classified information. US citizenship may be required for some positions.

Employment Type: OTHER

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