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L3 Application Support Jobs (NOW HIRING)

Neshent Technologies

We are seeking a skilled Senior Application Support Engineer to provide L3 application support across production and non-production environments. The role requires strong Java and React.js expertise ...

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L3 Application Support information

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$5

$28

$75

How much do l3 application support jobs pay per hour?

As of Sep 11, 2026, the average hourly pay for l3 application support in the United States is $28.82, according to ZipRecruiter salary data. Most workers in this role earn between $18.27 and $22.12 per hour, depending on experience, location, and employer.

What is the difference between L3 Application Support vs L2 Application Support?

AspectL3 Application SupportL2 Application Support
CertificationsBasic IT certifications, vendor-specific certificationsEntry-level certifications, basic technical training
Work EnvironmentAdvanced troubleshooting, complex issue resolution, collaboration with development teamsInitial issue diagnosis, user support, ticket handling
ResponsibilitiesResolve escalated issues, perform root cause analysis, implement fixesHandle user queries, escalate unresolved issues, document solutions
Industry UsageIT support, software companies, enterprise environmentsHelp desks, customer support centers, IT departments

In summary, L3 Application Support handles complex, escalated issues requiring advanced technical skills, while L2 focuses on initial troubleshooting and user support. Both roles are essential in IT support hierarchies but differ in responsibilities and expertise level.

What is application support level 3 job description?

An L3 Application Support role involves handling complex technical issues, performing root cause analysis, and providing advanced troubleshooting for software applications. It often requires in-depth knowledge of systems, scripting, and tools like ticketing systems, with responsibilities including incident resolution, system optimization, and collaboration with development teams. Candidates typically need strong problem-solving skills and relevant certifications or experience in application support environments.

What is the role of L3 Application Support?

L3 Application Support involves providing advanced technical assistance for complex application issues that cannot be resolved by lower support levels. It typically requires in-depth knowledge of the application, troubleshooting skills, and familiarity with tools like logs and debugging software to diagnose and resolve problems efficiently.

What are popular job titles related to L3 Application Support jobs?

For L3 Application Support jobs, the most frequently searched job titles are:

Infographic showing various L3 Application Support job openings in the United States as of September 2026, with employment types broken down into 1% As Needed, 74% Full Time, 20% Part Time, and 5% Contract. Highlights an 88% Physical, 2% Hybrid, and 10% Remote job distribution, with an average salary of $59,950 per year, or $28.8 per hour.

Senior Application Support Engineer

Cherryland, CA • On-site

Neshent Technologies
11 - 50 employees
Learn more about Neshent Technologiesexternal

Full-time

Posted 17 days ago

Job description

We are seeking a skilled Senior Application Support Engineer to provide L3 application support across production and non-production environments. The role requires strong Java and React.js expertise, along with experience in observability, dashboarding, troubleshooting, and incident triage. The engineer will help maintain application stability, performance, and reliability while collaborating with development and cross-functional teams.

Roles and Responsibilities
  • Provide L3 application support for production and non-production environments.
  • Troubleshoot and resolve issues using Java and React.js expertise.
  • Implement observability practices to monitor application health and performance.
  • Create and maintain dashboards for application metrics and performance monitoring.
  • Triage complex issues and collaborate with development teams on resolution.
  • Perform root cause analysis and recommend preventive actions.
  • Assist with application deployment and configuration across environments.
  • Document troubleshooting procedures, resolutions, and best practices.
  • Mentor and support junior team members.
Mandatory Skills
  • Strong hands-on experience with React.js.
  • Strong knowledge of Java.
  • Experience with observability tools and practices.
  • Experience creating and managing monitoring dashboards.
  • Strong troubleshooting, problem-solving, and incident management skills.
  • Excellent verbal and written communication.
  • Ability to work effectively in a collaborative team environment.
Preferred Skills
  • Experience with cloud platforms.
  • Knowledge of CI/CD and DevOps practices.
  • Experience with SQL and database management.
  • Understanding of Agile methodologies.
  • Experience with application performance tuning and optimization.

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