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Tier 3 Network Engineer Jobs (NOW HIRING)

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

$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 ...

DMI

Tier 3 Network Lead

Washington, DC

$115K - $159K/yr

Learn more at www.dminc.com 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 ...

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Tier 3 Network Engineer information

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

As of Jul 21, 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.
More about Tier 3 Network Engineer jobs
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 July 2026, with employment types broken down into 84% Full Time, 3% Part Time, and 13% Contract. Highlights an 92% In-person, 3% Hybrid, and 5% Remote job distribution, with an average salary of $109,040 per year, or $52.4 per hour.
Tier III Senior Network Engineer

Tier III Senior Network Engineer

Leidos

Tampa, FL • On-site

$98K - $134K/yr

Full-time

Medical, Dental, Vision, Life, Retirement

Posted 26 days ago

Leidos rating

8.4

Company rating: 8.4 out of 10

Based on 149 frontline employees who took The Breakroom Quiz

56th of 451 rated business services

Job description

Seeking a career with a sense of purpose, work life balance, and growth opportunities ... There's a place for you at Leidos!
At Leidos, we are committed to making the world safer, healthier, and more efficient through technology, engineering, and science. You would be a valued member of global team providing services across civil, defense, health, and intelligence business lines. At Leidos, team member career development, flexibility, and well-being are priority and is supported by consistent leadership engagement, an experienced human relations staff, and numerous employee support programs.
Use your unique talents and make an immediate impact...
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 II), Joint Communications Support Element (JCSE). The JCSE team provides en-route, early entry, scalable C4 support to Regional Combatant Commands, Special Operations Command, and other agencies.
In this role, you will be responsible for new capability requirements and design, system assessments, and providing hands-on engineering support. Key elements of this position include: conducting analysis and assessments on new emerging technologies; developing and recommending functional design solutions to meet stakeholder requirements; providing Tier III support to the Joint Network Operations Center (JNOC); developing, engineering, and recommending hardware and software solutions; and conducting cybersecurity mitigations on design solutions to comply with Risk Management Framework (RMF) cybersecurity requirements.
Responsibilities include:
  • Providing Tier III routing and switching support with hands on experience designing, testing, and implementing IGP, EGP, MPLS, VRF, and NFV/Service Chaining on an enterprise network to meet security, performance, operational, and functional requirements.
  • Ensuring proper routing protocols are being applied to optimize the end-to-end network performance from the Local Area Network (LAN) through a Wide Area Network (WAN), to a Campus Area Network (CAN), to a Storage Area Network (SAN), or data center.
  • Assisting the government customer with identifying any derived design objectives, technical specifications, performance requirements, and interoperability specifications to ensure the system design will meet stakeholder end-to-end requirements.
  • Ensure the system design adheres to industry standards, DOD standards, DOD policies, DOD instructions, DOD directives, cybersecurity policies, and best commercial practices.
  • Develop presentations to stakeholders articulating the gaps, requirements, objectives, functional and solution architecture.
  • Develop, review, and update briefings, papers, and/or spreadsheets to meet customer requirements.
  • Provide analysis for how the operational, functional, and performance requirements will be met as part of the system design, test, and implementation of initial capabilities.

Minimum Qualifications:
  • Current DoD 8140 (formerly 8570) IAT Level II certification (CompTIA Security+ce, CCNA Security, CySA+, etc.)
  • CCNP Enterprise
  • Education: BS Degree and 4-8 years of prior relevant experience or Masters with 2-6 years of relevant experience. Specific experience, education and training may be considered in lieu of degree.
  • Clearance: Secret

Intrigued?... There's more! Leidos understands that there are many factors that contribute to a career decision, but pay and benefits are fundamental factors.
Compensation: Very competitive, with a robust rewards and recognition program
Health and well-being: Comprehensive coverage with many programs (ex. HSA, FSA, Dental, Vision, 24/7 EAP) to ensure the well-being of you, eligible family members, and registered domestic partners.
Income Protection: Programs to help navigate life events: Company-provided Term Basic Life, Group Universal Life, Optional Dependent Life, Accidental Death and Dismemberment, and Business travel accident
Leave: Leidos is committed to work life balance, with competitive leave options.
Retirement: Leidos 401k plan, with company match determined by fringe benefit package
Employee Stock Purchase plan: 10% discount for all enrollees
Family Benefits: Center-based and in home back-up childcare, free access to Sittercity, and Dependent (Daycare) Flexible Spending Accounts
The Leidos values are integrity, inclusion, innovation, agility, collaboration, and commitment. It's under these values that we feel we are able to provide a safe work environment where we foster equality, growth, and creativity. If you feel Leidos is a fit you and can meet your needs, please submit your application and join our team in our commitment to excellence.
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:
June 26, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $73,450.00 - $132,775.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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About Leidos

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At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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