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
