Application Support Engineer

Diverse Lynx, LLC; San Leandro (CA); On-site; USD 83,000 - 90,000; Full time

Job summary

Diverse Lynx LLC is seeking a seasoned Java Application Support Engineer in San Leandro, CA to provide L2/L3 production support for enterprise Java applications. The role focuses on monitoring health, troubleshooting incidents, performing RCA, and supporting releases to ensure high availability and performance of business-critical systems.

The ideal candidate will have strong Java/J2EE expertise, experience with RESTful APIs, databases, and CI/CD tools, and a proven track record in ITIL-aligned

Qualifications

• Seasoned Java applications support experience.
• Experience providing L2/L3 production support.
• Strong incident management and RCA skills.
• Proficient in monitoring and performance tuning.
• Experience with CI/CD and cloud platforms.

Responsibilities

• Provide L2/L3 production support for Java-based applications and APIs.
• Monitor performance and health using observability tools.
• Investigate and resolve production incidents within SLA.
• Analyze logs, thread dumps, heap dumps, and metrics to diagnose issues.
• Assist with deployments, environment management, and post-release validation.
• Collaborate with Dev, Infra, DBA, Cloud, and Business teams for resolution.
• Participate in on-call rotations and drive automation to reduce manual effort.

Skills

Java

J2EE

Spring

Microservices

REST APIs

Linux/Unix

Tools

Tomcat

JBoss

WebSphere

Kafka

Jenkins

GitHub Actions

Azure DevOps

GitLab CI

Oracle

SQL Server

PostgreSQL

MySQL

Linux

Job description

Job Title: Application Support Engineer

Location: San Leandro, CA (onsite)

Duration : Long term Contract
Pay Rate: $60-65 C2C

Required skills : Java developer with application support- Application production Support.

Job Summary

We are seeking a seasoned Java Application Support Engineer to provide L2/L3 production support for enterprise Java applications. The ideal candidate will be responsible for monitoring application health, troubleshooting production issues, performing root cause analysis, supporting releases, and ensuring high availability and performance of business-critical systems. The role requires strong expertise in Java technologies, incident management, database troubleshooting, and collaboration with development, infrastructure, and business teams.

Key Responsibilities

• Provide L2/L3 production support for Java-based enterprise applications and APIs.
• Monitor application performance, availability, and system health using observability and monitoring tools.
• Investigate and resolve production incidents, service disruptions, and performance issues within SLA timelines.
• Analyze application logs, thread dumps, heap dumps, and system metrics to diagnose complex issues.
• Perform root cause analysis (RCA) and implement preventive measures to reduce recurring incidents.
• Support application deployments, releases, environment management, and post-release validation activities.
• Troubleshoot REST APIs, microservices, middleware integrations, and batch processing failures.
• Execute SQL queries for data analysis, validation, and issue investigation.
• Collaborate with Development, Infrastructure, DBA, Cloud, and Business teams for incident resolution.
• Participate in on-call support rotation for critical production issues.
• Drive automation initiatives to improve operational efficiency and reduce manual effort.
• Maintain support documentation, knowledge articles, runbooks, and operational procedures.
• Support change management, problem management, and incident management processes following ITIL best practices.

Required Qualifications

Technical Skills

• Strong experience in Java, J2EE, Spring, Spring Boot, and Microservices.
• Experience supporting RESTful APIs and distributed applications.
• Good understanding of JVM, Garbage Collection, Thread Management, and Performance Tuning.
• Hands-on experience with relational databases such as Oracle, SQL Server, PostgreSQL, or MySQL.
• Strong SQL skills for troubleshooting and data analysis.
• Experience with Linux/Unix environments and shell scripting.
• Knowledge of application servers such as Tomcat, JBoss, or WebSphere.
• Familiarity with messaging technologies like Kafka, JMS, or MQ.
• Experience with CI/CD tools such as Jenkins, GitHub Actions, Azure DevOps, or GitLab CI.
• Knowledge of cloud platforms such as AWS, Azure, or Eligible to workP is preferred.
• Experience using monitoring tools such as AppDynamics, Dynatrace, Splunk, Grafana, Datadog, ELK, or New Relic.

Process & Support Skills

• Strong understanding of ITIL processes including Incident, Problem, and Change Management.
• Experience working with ticketing tools such as ServiceNow, Jira, or Remedy.
• Ability to manage and coordinate P1/P2 Major Incidents.
• Excellent troubleshooting, analytical, and problem-solving skills.

Preferred Qualifications

• Experience supporting high-volume banking, financial services, insurance, or enterprise platforms.
• Exposure to container platforms such as Docker, Kubernetes, or OpenShift.
• Experience with AI-assisted developer tools such as GitHub Copilot or Microsoft Copilot.
• ITIL Foundation certification is a plus.

Soft Skills

• Strong communication and stakeholder management skills.
• Ability to work in a fast-paced production support environment.
• Strong ownership and accountability.
• Excellent collaboration and documentation skills.

Nice-to-Have Technologies

• Spring Cloud / OpenShift / Kubernetes / Kafka / MongoDB / Redis / Splunk / AppDynamics / Dynatrace / Jenkins

Disclaimer: Diverse Lynx LLC is an Equal Opportunity Employer. All applicants and employees are evaluated without discrimination, based solely on their qualifications, ability, competence and performance. This email and its attachments may contain confidential or proprietary information and is intended only for the recipient(s). If you received this message in error, please disregard it and notify the sender. If you no longer wish to receive our communications, you may unsubscribe at any time.
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