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L3 Support Engineer Jobs (NOW HIRING)

FastTek

Software Engineer

Dearborn, MI

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 · On-site

$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 Jul 6, 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 2% Locum Tenens, 90% Full Time, 2% Part Time, 3% Contract, and 3% Nights. Highlights an 89% Physical, 4% Hybrid, and 7% Remote job distribution, with an average salary of $82,930 per year, or $39.9 per hour.
Mainframe Production Support

Mainframe Production Support

Intellectt INC

Berkeley Heights, NJ • On-site

Contractor

Posted 9 days ago

Job description

Job Title: Mainframe Production Support

Location: Berkeley Heights, NJ

Duration: Long Term (around 3 years)

Interview Mode: InPerson Interview in NJ.

Job Summary:

We are seeking a skilled Mainframe Production Support Engineer to support critical enterprise applications in a 24/7 production environment. The ideal candidate will be responsible for monitoring, troubleshooting, and resolving production issues while ensuring system stability and SLA compliance.

Key Responsibilities:

· Monitor daily batch jobs and online systems using tools like Control-M and SDSF

· Troubleshoot and resolve production issues, abends, and job failures in a timely manner

· Perform root cause analysis and implement permanent fixes for recurring issues

· Provide L2/L3 support for mainframe applications

· Work closely with development, QA, and infrastructure teams for issue resolution

· Handle incident, problem, and change management through tools like ServiceNow or JIRA

· Support deployment activities and validate post-production releases

· Maintain documentation, runbooks, and standard operating procedures

· Participate in on-call rotation and provide off-hours support when required

Required Skills:

· Strong experience in COBOL, JCL, VSAM, DB2

· Hands-on experience with TSO/ISPF, SDSF

· Knowledge of job scheduling tools like Control-M / CA-7

· Experience in handling production support (L2/L3)

· Strong debugging and problem-solving skills

· Familiarity with incident management tools (ServiceNow, JIRA