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Java/J2EE Application Support Engineer

Unison Group · Singapore

Technical Support / HelpdeskExternal listingfull-timeabout 2 hours ago

About The Role

Job Overview

We are looking for a dynamic and motivated Java/J2EE Application Support Engineer to join our application support team. The ideal candidate will have hands-on experience in Java/J2EE, Unix/Linux, SQL, web applications, batch processing, and application support . Candidates with development experience who are willing to transition into an application support role are also encouraged to apply.

The role requires strong ownership, troubleshooting skills, a willingness to learn, and the ability to work in a 24×7 shift-based support environment , including night shifts, weekends, and public holidays.

Key Responsibilities

  • Provide L1/L2 application support for Java/J2EE-based enterprise applications.
  • Monitor applications, batch jobs, interfaces, and system processes.
  • Analyze and troubleshoot application issues using Java logs, Unix/Linux commands, and SQL queries .
  • Perform incident investigation, root-cause analysis, and resolution within defined SLAs .
  • Support web applications and batch processing environments.
  • Work with JBOSS application servers, MariaDB/SQL databases, Shell scripts , and related middleware.
  • Execute SQL queries for data validation, investigation, and troubleshooting.
  • Monitor and support scheduled jobs and batch processes.
  • Support MQ setup/configuration and Connect:Direct (C:D) processes where required.
  • Coordinate with development, infrastructure, database, middleware, and business teams to resolve production issues.
  • Ensure timely communication and escalation of critical incidents.
  • Follow ITIL/application support processes and maintain proper incident and problem-management documentation.
  • Participate in application deployments, production releases, and post-release validation.
  • Take ownership of assigned incidents and ensure timely resolution without compromising quality.
  • Continuously learn new technologies, applications, and banking processes.

Required Technical Skills

  • Hands-on experience with Java/J2EE applications .
  • Minimum 1 year of application support experience ; Java developers with strong technical fundamentals and willingness to move into support are also considered.
  • Good knowledge of Java/J2EE programming .
  • Hands-on experience with Unix/Linux commands .
  • Good understanding of SQL queries and database troubleshooting .
  • Knowledge of:
  • Web applications
  • Batch jobs
  • JBOSS
  • MariaDB
  • SQL
  • Shell scripting
  • Job scheduling
  • Exposure to MQ setup is an advantage.
  • Experience with Connect:Direct (C:D) is an advantage.
  • Banking/financial services domain experience is an added advantage.

Preferred Experience

1–5 years of relevant experience in Java/J2EE application support, production support, or Java development with strong willingness to transition into application support.

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