L2 Production Support (Java/J2EE-based applications)

Unison Consulting Pte Ltd; Singapore; On-site; SGD 60,000 - 90,000; Full time

Job summary

A leading company is seeking an experienced Application Support Engineer to provide L2 support for Java/J2EE applications. The role involves monitoring application performance, incident resolution, and collaborating with developers to enhance system reliability. Candidates should have 5+ years of experience and strong knowledge of Java, Spring, and related technologies.

Qualifications

• 5+ years of experience in application support or software engineering.
• Strong knowledge of Java, Spring, REST APIs, and SQL.
• Experience with Unix/Linux commands and shell scripting.

Responsibilities

• Provide L2 production support for Java/J2EE applications.
• Monitor application performance using tools like AppDynamics and Grafana.
• Investigate and resolve incidents and performance issues.

Skills

Java

Spring

REST APIs

SQL

Unix/Linux

shell scripting

log analysis

Cloud AWS

microservices

Tools

Jenkins

Git

Maven

Kibana

ELK

Job description

Key Responsibilities:

• Provide L2 production support for Java/J2EE-based applications.
• Monitor application performance using tools like AppDynamics, Grafana and Kibana
• Investigate and resolve incidents, outages, and performance issues in a timely manner.
• Perform root cause analysis (RCA) and implement long-term fixes.
• Collaborate with developers for bug fixes, enhancements, and code deployments.
• Participate in incident and change management processes.
• Create and maintain support documentation, runbooks, and knowledge base articles.
• Participate in on-call rotation and ensure SLAs are met.
• Support deployments, patching, and configuration changes in non-prod and prod environments.

Develop or enhance monitoring dashboards, alerting mechanisms, and automation scripts

Required Skills & Experience:

• 5+ years of experience in application support or software engineering.
• Strong knowledge of Java, Spring, REST APIs, and SQL.
• Experience with Unix/Linux commands and shell scripting.
• Hands-on experience with log analysis tools (Kibana, ELK, etc.).
• Familiarity with CI/CD tools (Jenkins, Git, Maven) and deployment practices.
• Experience working with relational databases (MariaDB, REDIS).
• Experience working on Cloud Environments AWS.
• Good understanding of microservices architecture and web application troubleshooting
• Note : comfortable to work in rotational shift