Application Maintenance / Production Support(Java Application)

Hong Kong Unison Limited; Kuala Lumpur; On-site; MYR 90,000 - 150,000; Full time

Job summary

Hong Kong Unison Limited is seeking an experienced L3 Application Maintenance / Production Support specialist for Java Spring Boot apps in Kuala Lumpur. You will troubleshoot complex incidents, perform RCA, and implement permanent fixes while coordinating with L1/L2 teams and developers.

Responsibilities include deploying patches, supporting releases, and monitoring health to uphold SLA commitments. Strong Unix/Linux and Oracle DB skills are essential for success.

Qualifications

• Mandatory: strong Java Spring Boot experience with debugging skills.
• Unix/Linux command-line proficiency for log analysis and troubleshooting.
• Oracle Database 19c knowledge for SQL queries and basic troubleshooting.

Responsibilities

• L3 production support for Java Spring Boot applications.
• Analyze and resolve complex production incidents.
• Perform root cause analysis (RCA) and implement permanent fixes.
• Debug application issues using logs and code.
• Coordinate with L1/L2 support teams and developers.
• Deploy patches and support production releases.
• Monitor application health and ensure SLA compliance.

Skills

Java Spring Boot

Unix/Linux

Oracle Database 19c

WebLogic/JBoss

Apache Web Server

Shell Scripting

PL/SQL

Workflow Systems

Job description

Application Maintenance / Production Support(Java Application)

• L3 production support for Java Spring Boot applications.
• Analyze and resolve complex production incidents.
• Perform root cause analysis (RCA) and implement permanent fixes.
• Debug application issues using logs and code.
• Coordinate with L1/L2 support teams and developers.
• Deploy patches and support production releases.
• Monitor application health and ensure SLA compliance.

• L3 production support for Java Spring Boot applications.
• Analyze and resolve complex production incidents.
• Perform root cause analysis (RCA) and implement permanent fixes.
• Debug application issues using logs and code.
• Coordinate with L1/L2 support teams and developers.
• Deploy patches and support production releases.
• Monitor application health and ensure SLA compliance.

Mandatory Technical Skills

• Java Spring Boot - Able to understand and debug the application code.
• Unix/Linux - Strong command-line skills for log analysis, process monitoring, and troubleshooting.
• Oracle Database 19c - SQL queries and basic database troubleshooting.

Nice-to-Have Skills

• WebLogic/JBoss - Application deployment and troubleshooting.
• Apache Web Server - Configuration and log analysis.
• Shell Scripting - Automating support activities.
• PL/SQL - Debugging database-related issues.
• Workflow Systems - Supporting workflow-based applications.

Ideal Candidate

The ideal candidate would have:

• 4-8+ years in Application Support/Production Support (L2/L3).
• Experience supporting Java Spring Boot applications in production.
• Strong troubleshooting skills rather than pure development experience.
• Knowledge of Unix/Linux, Oracle Database, and middleware (WebLogic/JBoss).
• Experience with incident management, RCA, and release support.
• Familiarity with ticketing tools such as ServiceNow, Jira, or Remedy