Job Vacancy Java Application Development Support

This skill covers the ability to design, develop, maintain, and support enterprise Java applications operating in an Oracle-based environment, including Web user interfaces developed with Oracle tools, with long-term on-site support in Munich, Bavaria (Germany).

1. Java Enterprise Development

• Development of applications using Java SE / Java EE (Jakarta EE)

• Implementation of Servlets, JSP, JSF, and Oracle-oriented frameworks

• Management of the HTTP request/response lifecycle

• Design and implementation of RESTful Web Services (JAX-RS) and, where required, SOAP services

• Session handling, authentication, authorization, and application-level security

2. Oracle Environment

• Proven experience within the Oracle ecosystem, including:

  • Oracle Database (SQL, PL/SQL, stored procedures, packages)

  • JDBC connectivity and connection pooling

  • Transaction control and query performance tuning

• Deployment and configuration on Oracle WebLogic Server:

  • Application deployment and lifecycle management

  • Configuration of datasources, JMS resources, and security realms

  • Operational support across DEV, TEST, and PROD environments

3. Request / Response Architecture

• Design and maintenance of multi-tier architectures:

  • Web Frontend → Application Server → Oracle Database

• Enforcement of separation of concerns:

  • Presentation layer

  • Business logic layer

  • Data access layer (DAO / Repository patterns)

• Error handling, exception management, and HTTP response management

• Logging, monitoring, and performance tracing

4. Web Interface Development with Oracle Tools

• Development of Web interfaces using:

  • Oracle ADF (Application Development Framework)

  • JSF with Oracle UI components

• Frontend–backend data binding and state management

• Implementation of forms, validations, navigation flows, and workflow logic

• Integration of frontend components with backend services through synchronous requests

5. On-Site Activities in Bavaria (Germany)

The role includes full or partial on-site presence in Bavaria, Germany, for an estimated duration of approximately 24 months, with activities such as:

• Direct collaboration with local development, operations, and business teams

• Participation in on-site technical workshops, design sessions, and sprint planning

• Support during application rollout, stabilization, and production go-live phases

• Troubleshooting of production incidents requiring physical presence

• Knowledge transfer, technical coaching, and documentation for local teams

• Coordination with German stakeholders to align functional requirements and technical solutions

• Compliance with local IT, security, and operational procedures

6. Application Support and Maintenance

• Diagnosis and resolution of application issues and defects

• Support for:

  • Functional enhancements

  • Code refactoring

  • Java, Oracle Database, and WebLogic version upgrades

• Performance analysis and system optimization

• Contribution to technical and operational documentation

7. Tools and Development Practices

• IDEs: Oracle JDeveloper, Eclipse, IntelliJ IDEA

• Version control systems (Git, SVN)

• Build and deployment tools (Maven, Ant)

• Unit and integration testing (JUnit and related frameworks)

• Close cooperation with DBAs, system administrators, QA teams, and functional analysts