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L3 Support Engineer Jobs (NOW HIRING)

FastTek

Software Engineer

Dearborn, MI · On-site

The 3DEXPERIENCE Level 3 (L3) Support Engineer is a technical position responsible for providing advanced troubleshooting, diagnostics, and resolution of complex production issues across the Dassault ...

Beacon Hill

Senior IT Support Engineer

Boston, MA

$85 - $100K/hr

L2/L3 deskside + remote support * Act as escalation point + mentor junior staff * Own automation ... Programming/Development, Database, Infrastructure, Quality Assurance, Production/Support and ERP ...

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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 15, 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.

.Net Application Support/Production Support (L2/L3)

Saransh Inc

Boston, MA • On-site

Contractor

Posted 13 days ago

Job description

Job Title: .Net Application Support (L2/L3)

Work Location: Boston, MA

Duration: Long Term

Note:  Shift/Work Hours: 2.00 PM – 10.00 PM EST (Should be able work at-least 4 Hours/day in Office for Weekly 3 Days).

Job Description

  • Provide L2/L3 support for .NET and Java-based applications.
  • Troubleshoot and resolve issues in C#, ASP.NET, Java, Spring, Hibernate.
  • Collaborate with development, QA, and DevOps teams.
  • Monitor application health and performance.
  • Perform root cause analysis and implement fixes.
  • Maintain technical documentation and support SLAs.
  • Knowledge on Operating systems: Windows, Linux, Unix.                                           
  • Manage and support servers, networks, and virtualization platforms.
  • Troubleshoot hardware, software, and network issues.
  • Implement system upgrades, patches, and backups.
  • Ensure infrastructure security and compliance.
  • Maintain system documentation and performance metrics.

Mandatory Skills:

  • .Net/.Net framework/Java
  • ASP.NET MVC
  • Web API, Spring Boot
  • Restful APIs
  • SQL Server, Oracle
  • GIT
  • PowerShell, Bash
  • VMware