Senior Java Developer (SOURC02360)

We are looking for an experienced Senior Java Developer to maintain, support, and enhance established enterprise web applications in a business-critical environment. The role combines hands-on development, production support, incident resolution, controlled releases, and knowledge transfer, with a strong focus on maintaining stability across legacy and existing Java applications. Key Responsibilities • Analyze, maintain, and enhance enterprise Java web applications built using Struts, JSF, PrimeFaces, JSP, and Servlets. • Investigate incidents and defects across application, database, integration, and deployment layers. • Perform Root Cause Analysis (RCA) and document technical findings, fixes, and preventive actions. • Develop and implement application enhancements while assessing dependencies and regression risks. • Coordinate testing, deployment, release validation, and post-release verification. • Write, troubleshoot, and optimize Oracle SQL and PL/SQL. • Investigate database-related issues, data inconsistencies, and query performance problems. • Maintain reporting solutions using JasperReports / Jasper Studio. • Support and troubleshoot REST APIs and integrations using JSON and XML. • Deploy and support Java applications on Oracle WebLogic and Tomcat. • Troubleshoot application-server configuration, logs, startup, runtime, and deployment issues. • Provide production support during critical operating periods. • Coordinate with QA, Database, Infrastructure, Security, and Functional teams. • Maintain technical documentation, deployment procedures, operational runbooks, and application knowledge. • Support knowledge transfer and validate source code, repositories, system access, and application dependencies. Required Qualifications & Experience • Bachelor’s degree in Computer Science, Software Engineering, Information Technology, or a related field. • Minimum 8 years of hands-on experience developing, maintaining, and supporting Java enterprise web applications. • Significant experience supporting legacy and production-critical Java applications. • Strong hands-on expertise in: • Java 8 / JDK 8 • Object-Oriented Programming • MVC Architecture • JSP & Servlets • JavaScript & AJAX • Practical experience maintaining: • Struts 1.1 • JSF 2.2 • PrimeFaces 5.5 • Strong experience with Oracle Database 19c, including complex SQL queries, transactions, optimization, troubleshooting, and PL/SQL. • Hands-on experience developing and maintaining JasperReports using Jasper Studio. • Strong experience with Oracle WebLogic 14 and Tomcat, including deployment, configuration, logging, and production troubleshooting. • Experience maintaining REST APIs and integrations using JSON and XML. • Experience with Git or CVSNT, including repositories, branching, merging, and release version management. • Strong ability to understand complex existing business logic and implement compatible changes safely. • Strong troubleshooting, analytical, documentation, and cross-functional coordination skills. Preferred Experience • Experience using Eclipse and NetBeans for Java application development and debugging. • Experience with Spring Boot, Hibernate, and JPA. • Experience with Oracle ADF and JSTL. • Experience deploying or troubleshooting applications on JBoss or GlassFish. • Experience with high-volume enterprise applications and performance optimization. • Knowledge of secure coding and automated testing practices. • Exposure to application modernization and legacy system transformation. • Experience mentoring developers or leading application knowledge-transfer activities. Key Technical Stack Java 8 | Struts 1.1 | JSF 2.2 | PrimeFaces 5.5 | JSP | Servlets | Oracle 19c | SQL | PL/SQL | JasperReports | WebLogic 14 | Tomcat | REST APIs | JSON | XML | Git | CVSNT Show more Show less