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Tier Three Engineer Jobs (NOW HIRING)

Tier 3 Network Engineer Company: InterImage InterImage is actively seeking an energetic, curious, and skilled engineer to join our team in Northern VA! We are looking for a Tier 3 Network Engineer to ...

We are seeking an experienced Tier 3 Video Management System (VMS) Support Engineer to provide advanced technical support and engineering oversight for our enterprise video surveillance environment.

We are seeking an experienced Tier 3 Video Management System (VMS) Support Engineerto provide advanced technical support and engineering oversight for our enterprise video surveillance environment.

NOC Engineer - Tier III

Tulsa, OK ยท On-site +1

$85K - $95K/yr

NOC Engineer - Tier III Department: Networks Operations POSITION SUMMARY The NOC Engineer - Tier III is a senior technical role within the Vero Network Operations Center (NOC), responsible for ...

NOC Engineer - Tier III

Tulsa, OK ยท Remote

$85K - $95K/yr

NOC Engineer - Tier III Department: Networks Operations POSITION SUMMARY The NOC Engineer - Tier III is a senior technical role within the Vero Network Operations Center (NOC), responsible for ...

Hello Heart is growing, and we are looking for a Tier 3 Support Engineer to join our dynamic team. In this role, you will be responsible for investigating and resolving complex technical issues ...

New

NOC Tier 3 Network Engineer Duration: 4months Charlotte NC The available position is for a Tier 3 Network Engineer contract to hire to support a long-tenured client major enterprise Fortune 100 ...

Showing results 21-40

Tier Three Engineer information

What is the difference between Tier Three Engineer vs Tier Two Engineer?

AspectTier Three EngineerTier Two Engineer
CertificationsAdvanced certifications (e.g., Cisco CCNP, CompTIA Network+)Entry to mid-level certifications (e.g., Cisco CCNA, CompTIA A+)
Work EnvironmentComplex troubleshooting, system design, and advanced supportRoutine maintenance, basic troubleshooting, and user support
Employer & Industry UsageIT service providers, large enterprises, network infrastructureSmall to medium businesses, internal IT teams
Search & Comparison IntentUnderstanding advanced support roles, career progressionBasic support roles, entry-level positions

In summary, a Tier Three Engineer handles more complex issues, requires advanced certifications, and works in larger, more technical environments compared to a Tier Two Engineer, who focuses on routine support and basic troubleshooting.

What is a Tier Three Engineer?

A Tier Three Engineer is a senior technical support or network engineer responsible for resolving complex issues that Tier One and Tier Two support cannot handle. They often troubleshoot advanced hardware, software, or network problems, and may work with specialized tools and certifications such as Cisco or Microsoft to ensure system stability and performance.
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Infographic showing various Tier Three Engineer job openings in the United States as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 83% Full Time, 13% Part Time, and 2% Contract. Highlights an 90% Physical, 3% Hybrid, and 7% Remote job distribution.

Tier 3 Network Engineer

Chantilly, VA โ€ข On-site

InterImage
IT Servicesย โ€ขย 51 - 200 employees

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 20 days ago


Job description


Join Our Mission-Critical Team!

Position: Tier 3 Network Engineer

Company: InterImage

InterImage is actively seeking an energetic, curious, and skilled engineer to join our team in Northern VA!  We are looking for a Tier 3 Network Engineer to support a government customerโ€™s global enterprise network. Big picture, the Tier 3 engineering team provides implementation support to the network architecture team as well as troubleshooting expertise to a 24/7 Network Operations Center (NOC).  This position is essential to the customerโ€™s mission and is viewed as a technical leader.
Responsibilities:
โ€ข    Provide Tier 3 support to the Network Operations Center (NOC)
โ€ข    Supports an organizationโ€™s local area network (LAN), wide area network (WAN), customer networks and other data communications systems
โ€ข    Monitor the network to ensure network availability to all system users and perform necessary maintenance to support network stability
โ€ข    Maintain network hardware and software
โ€ข    Proactively identify risks in the network and develop a strategy to mitigate those risks.
โ€ข    Provide technical expertise to network architects and site technicians
โ€ข    Supports numerous business requirements for telecommunications (e.g., LAN, MAN, WAN, Voice and Video)
โ€ข    Configure, and test hardware, networking software and operating system software
โ€ข    Prepare technical proposals for presentation to the NROโ€™s engineering review boards for adding new technologies to the network
โ€ข    Perform a full range of upgrades in accordance with existing network architecture
โ€ข    Utilize complex network analysis tools to identify and correct problems in the network
โ€ข    Prepare troubleshooting procedures for restoring the network to optimal performance levels
โ€ข    Provide fault management for the network and support performance management functions
โ€ข    Execute reporting functions and data input associated with network management
โ€ข    Monitor security posture of the network, report suspected violations to designated authority
โ€ข    Analyze network characteristics (e.g., traffic, connect time, transmission speeds, packet sizes, and throughput); recommend procurement, removals, and modifications to network components
โ€ข    Optimize network topologies and site configurations. Plan installations, transitions, and cutovers of network components and capabilities
Hereโ€™s What Youโ€™ll Need:
โ€ข    Hands on troubleshooting and fault isolation experience of IT business systems.
โ€ข    Active TS/SCI w Polygraph is required
โ€ข    16 years of experience that can be a combination of work history and education. This equates to a Doctorate and 8 years of experience OR a Masterโ€™s and 10 years, a Bachelorโ€™s and 12 years, an Associates and 14 years or HS and 16 years
โ€ข    Must have a strong understanding of the OSI model and configuration of routing protocols such as OSPF, MPLS, BGP, LDP
โ€ข    Must have a strong understanding of layer 2 technologies
โ€ข    Familiarity with cloud technologies
โ€ข    Must have or obtain DoD 8570 Information Assurance Technical (IAT) Level 2 a (Security CE)

Why InterImage?

At InterImage, we offer a competitive salary with great benefits. Join a team dedicated to making a difference and contributing to critical missions. Embrace the opportunity to work in a collaborative environment where your skills are valued, and your creativity is encouraged.

InterImage Benefits Snapshot:

  • 401K - 7% contribution with 3% profit sharing; 1-year cliff vesting schedule
  • Paid Time Off: 4 weeks
  • Paid Holiday Leave: 11 days (88 Hours)
  • Life Insurance: $50,000; 100% of premium
  • Short-term/Long-term Insurance: 100% premium
  • Healthcare: 2 CareFirst Administrator plans offered, $0 Employee only option, Metlife for Vision, and The Standard for Dental.