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L3 Support Engineer Jobs (NOW HIRING)

Reliance One

L3 Support Engineer

Buffalo, WV

$25 - $29/hr

L3 Support Engineer Buffalo, West Virginia, United States On-site $25-$29/hour Contract Opportunity Benefits begin on day 1 including medical, dental, vision insurance, 401(k), paid time off, and ...

Cloudious

L3 Support engineer OCP

Concord, CA · On-site

L3 Support engineer OCP Location :: Concord CA Type: C2C Work hours :: 6.00 AM -3.00 PM California times OpenShift, Kubernetes, Docker, Google Cloud Platform, Grafana, Splunk logs, Redis, PostgreSQL ...

Tintri

Senior Engineer - L3 Support Engineer

The L3 Support Engineer for VMstore products serves as the highest level of technical escalation between Customer Support and Engineering. This role is responsible for diagnosing, resolving, and ...

Data Direct Networks

The L3 Support Engineer for VMstore products serves as the highest level of technical escalation between Customer Support and Engineering. This role is responsible for diagnosing, resolving, and ...

Tintri

The L3 Support Engineer for VMstore products serves as the highest level of technical escalation between Customer Support and Engineering. This role is responsible for diagnosing, resolving, and ...

Diverse Lynx

L3 Support engineer - OCP

Concord, CA · On-site

They are seeking an L3 Support Engineer with strong expertise in OpenShift and Kubernetes to manage and troubleshoot systems in a large-scale enterprise environment. Responsibilities : • 5-7 years ...

LTM

AI Copilot Support Engineer

Manhattan, NY · On-site

LTM is seeking an experienced AI Platform Support Engineer to support and manage enterprise AI ... Responsibilities : • Provide L1 L2 L3 support and resolve user issues related to AI tools. • ...

JConnect Inc

Invent L3 Support

Los Angeles, CA · On-site

$17.25 - $23.25/hr

Invent L3 Support Job Location: Los Angeles, CA Duration: Contract Key responsibilities • Act as ... repro steps) for Engineering. • Implement or coordinate permanent fixes, patches, and ...

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L3 Support Engineer information

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How much do l3 support engineer jobs pay per hour?

As of Jun 12, 2026, the average hourly pay for l3 support engineer in the United States is $39.87, according to ZipRecruiter salary data. Most workers in this role earn between $29.57 and $46.63 per hour, depending on experience, location, and employer.

How does an L3 Support Engineer typically interact with other technical teams during complex incident resolution?

L3 Support Engineers often serve as the final escalation point for technical issues, collaborating closely with development, QA, and operations teams. During complex incidents, they work alongside L1 and L2 support to gather detailed information, then coordinate with product engineers or system architects to diagnose and resolve root causes. This role requires strong communication skills, as you'll often translate technical findings for both technical and non-technical stakeholders. Successful L3 engineers build cross-functional relationships, ensuring efficient problem-solving and continuous improvement of support processes.

What are L3 Support Engineers?

L3 Support Engineers, also known as Level 3 or Tier 3 support engineers, are technical experts who handle the most complex and advanced issues that cannot be resolved by lower-level support teams. They are responsible for diagnosing and troubleshooting escalated problems, often involving in-depth analysis of systems, software, or hardware. L3 Support Engineers may work directly with developers to resolve bugs, create patches, or suggest improvements, ensuring that critical technical issues are resolved efficiently. Their expertise is crucial for maintaining system stability and customer satisfaction in highly technical environments.

What are the key skills and qualifications needed to thrive as an L3 Support Engineer, and why are they important?

To thrive as an L3 Support Engineer, you need advanced troubleshooting abilities, deep technical expertise in relevant systems or applications, and typically a degree in computer science or a related field. Familiarity with diagnostic tools, scripting languages, ticketing systems (like ServiceNow or Jira), and relevant certifications such as ITIL or vendor-specific credentials are commonly required. Strong analytical thinking, communication skills, and a customer-centric mindset help in resolving complex issues and collaborating with cross-functional teams. These skills and qualities are vital for efficiently resolving high-level technical problems and maintaining system reliability in enterprise environments.

What is the difference between L3 Support Engineer vs Network Support Engineer?

AspectL3 Support EngineerNetwork Support Engineer
CertificationsITIL, CompTIA Network+, Cisco CCNACCNA, CCNP, CompTIA Network+
Work EnvironmentData centers, enterprise IT, technical support teamsNetwork operations centers, enterprise networks, troubleshooting teams
Industry UsageIT services, tech companies, telecomTelecom, IT infrastructure, enterprise networking

Both roles require networking certifications like CCNA and involve troubleshooting complex technical issues. While L3 Support Engineers handle escalated technical problems across various IT systems, Network Support Engineers focus specifically on network infrastructure and connectivity. The roles often overlap in enterprise environments, but L3 Support Engineers typically have broader responsibilities across multiple systems, whereas Network Support Engineers specialize in network-related issues.

More about L3 Support Engineer jobs
What are the most commonly searched types of L3 Support Engineer jobs? The most popular types of L3 Support Engineer jobs are:
What states have the most L3 Support Engineer jobs? States with the most job openings for L3 Support Engineer jobs include:
What job categories do people searching L3 Support Engineer jobs look for? The top searched job categories for L3 Support Engineer jobs are:
L3 Support Engineer jobs near you
Infographic showing various L3 Support Engineer job openings in the United States as of June 2026, with employment types broken down into 50% Internship, 25% Full Time, and 25% Part Time. Highlights an 87% Physical, 5% Hybrid, and 8% Remote job distribution, with an average salary of $82,930 per year, or $39.9 per hour.
L3 Support Engineer

L3 Support Engineer

Reliance One

Buffalo, WV

$25 - $29/hr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 21 days ago

Job description

L3 Support Engineer

Buffalo, West Virginia, United States

On-site

$25-$29/hour

Contract Opportunity

Benefits begin on day 1 including medical, dental, vision insurance, 401(k), paid time off, and paid holidays


We are hiring for one of our trusted clients seeking an experienced L3 Support Engineer to support complex IT infrastructure environments in a fast-paced manufacturing setting. This role is ideal for someone with strong technical troubleshooting experience, excellent customer service skills, and the ability to support critical infrastructure and plant floor systems.


Key Responsibilities:

  • Provide Level 3 technical support for infrastructure, server, network, and plant floor systems
  • Troubleshoot and resolve escalated incidents that cannot be resolved by Tier 1 support
  • Support Cisco Layer 2 and Layer 3 routing, wireless networks, and PBX administration
  • Perform network troubleshooting including TCP/IP, DHCP, VLANs, subnetting, and POE
  • Support IT cabling, switch configuration, infrastructure planning, and network traffic analysis
  • Utilize packet capture tools such as Wireshark for diagnostics and troubleshooting
  • Manage and support server room infrastructure including power, HVAC, fiber, switches, servers, and storage equipment
  • Administer Windows Server environments including DNS, DHCP, print servers, SCCM, and file shares
  • Support server, storage, SAN/NAS, and backup system maintenance and refresh activities
  • Provide technical support for plant floor systems including ANDON, PLC-related systems, GALC, PTCS, and manufacturing applications
  • Coordinate with remote teams and third-party vendors for issue escalation and resolution
  • Provide conference room, break/fix, and site support as needed
  • Respond to critical outages and plant floor emergencies with urgency and professionalism


Qualifications:

  • 3–5 years of experience performing Level 3 IT support responsibilities
  • Strong Cisco networking experience required
  • Experience with TCP/IP, DHCP, subnetting, VLANs, and POE
  • Experience supporting Windows Server environments
  • Knowledge of data center/server room infrastructure and hardware support
  • Strong troubleshooting, root cause analysis, and critical thinking skills
  • Ability to work in high-pressure environments and support critical plant operations
  • Excellent communication and customer service skills
  • Project management experience within IT environments preferred
  • Flexibility to support on-call responsibilities and overtime as needed


This is a great opportunity to join a collaborative technical team supporting advanced manufacturing operations and critical infrastructure systems. Let’s connect!


Equal Employment Opportunity Commission (EEOC) Statement

Reliance One, Inc. is an Equal Opportunity Employer. We provide equal employment opportunities to all employees and applicants and prohibit discrimination and harassment of any kind, without regard to race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), national origin, age, disability, genetic information, veteran status, or any other characteristic protected by applicable federal, state, or local laws.


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