Java L3 Production Support Engineer

Java L3 Production Support Engineer

Role Summary

We are looking for an experienced Java L3 Production Support Engineer to provide advanced technical support for enterprise Java applications. The role involves troubleshooting complex production issues, performing root-cause analysis, implementing application fixes, and working closely with development, infrastructure, database, and business teams to ensure application stability and availability.

Key Responsibilities

• Provide L3 production support for Java/J2EE applications in a 24x7 or on-call support environment.

• Analyze and resolve complex application incidents, production defects, and performance issues.

• Perform detailed root-cause analysis (RCA) and implement permanent corrective actions.

• Troubleshoot Java application issues including exceptions, memory problems, thread issues, connectivity failures, and application crashes.

• Review application logs using tools such as Splunk, ELK, AppDynamics, Dynatrace, or similar monitoring platforms.

• Troubleshoot REST/SOAP APIs, microservices, integrations, and backend services.

• Analyze database-related issues and execute SQL queries for troubleshooting and data validation.

• Work with Oracle/MySQL/SQL Server/PostgreSQL or other relational databases.

• Debug Java and Spring/Spring Boot code and provide code-level fixes when required.

• Support applications deployed on WebSphere, WebLogic, Tomcat, JBoss/EAP, or cloud platforms.

• Monitor application health, system performance, batch jobs, interfaces, and scheduled processes.

• Collaborate with Development, DevOps, Infrastructure, Database, QA, and Business teams for incident resolution.

• Participate in incident, problem, and change management processes.

• Support production deployments, releases, patches, and emergency fixes.

• Identify recurring issues and recommend automation or process improvements.

• Prepare and maintain RCA documents, support procedures, runbooks, and technical documentation.

• Participate in production release validation and post-deployment monitoring.

• Follow ITIL processes and meet defined SLA/KPI requirements.

Required Skills

• 5+ years of experience in Java application development and production support.

• Strong experience with Java/J2EE and Spring/Spring Boot.

• Strong troubleshooting and debugging skills.

• Experience supporting REST APIs and microservices.

• Strong knowledge of SQL and relational databases.

• Hands-on experience with application and server logs.

• Experience with monitoring/logging tools such as Splunk, Dynatrace, AppDynamics, or ELK.

• Experience with Linux/Unix commands and shell scripting.

• Understanding of JVM, memory management, garbage collection, thread dumps, heap dumps, and performance troubleshooting.

• Experience with production incident management and RCA/problem management.

• Familiarity with Git, Jenkins, CI/CD, and deployment processes.

• Strong communication and stakeholder-management skills.

Preferred Skills

• Experience with AWS/Azure cloud environments.

• Experience with Docker/Kubernetes.

• Kafka or other messaging technologies.

• Experience with WebSphere/WebLogic/Tomcat/JBoss.

• Knowledge of Oracle, PostgreSQL, MySQL, or SQL Server.

• Experience with ServiceNow or other ITSM tools.

• Knowledge of Agile/Scrum and ITIL processes.

• Experience automating support activities using Shell, Python, or Java.

Key Competencies

• Production troubleshooting

• Incident & problem management

• Root-cause analysis

• Java debugging

• Application performance monitoring

• API/microservices support

• Database troubleshooting

• Linux/Unix

• Production deployment support

• SLA-driven support

• Cross-functional collaboration