Senior Java EE / Oracle ADF Developer

22nd Century Technologies, Inc.

Fort Belvoir, VA, United States

26 days ago

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Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Working hours

Regular working hours

Job source

www.clearancejobs.com

Tech stack

Test Suite Apache Ant Server Applications Application Frameworks Unit Testing Oracle WebLogic Server Cascading Style Sheets (CSS) Spreadsheets Code Coverage Software Quality Databases System Configuration

+41 more

Continuous Integration Data Control Database Schema Database Storage Structures Programming Tools EclipseLink Enterprise JavaBeans Java Platform Enterprise Edition (J2EE) Design of User Interfaces Apache POI Intrusion Detection Systems Java Message Service (JMS) Java Persistence API JDeveloper Java Naming and Directory Interface JavaServer Faces Junit Apache Maven Object-Relational Mapping Oracle Databases Oracle (Applications) Mockito Message Oriented Middleware SQL Stored Procedures PL-SQL SQL Databases Systems Integration Web Services Extensible Markup Language (XML) Data Processing SOAPAPI Backend Git Oracle Adf Jax Ws Templating Deployment Automation Toad (Software) Build Tools Front End Software Development Software Version Control

Job description

We are seeking a Senior Java EE / Oracle ADF Developer to join our team in designing, developing, and maintaining the Mapping Enterprise Business System (MEBS). In this role, you will be responsible for the full-cycle development of highly secure enterprise logistics applications. You will work across a complex multi-tier architecture, building robust Java EE backends (including EJB Stateless Session Beans and Message Driven Beans), developing high-performance Oracle Database PL/SQL structures, and crafting sophisticated user interfaces using Oracle ADF Faces and task flows., * Maintain and enhance SLSBs to manage core system rules.

Develop robust PL/SQL packages for backend batch operations.
Configure ADF Task flows to construct dynamic user screens.
Maintain unit testing codebases to secure high test coverage across EJB business methods.

Requirements

Java EE Expertise: Deep experience with Java EE 8, specifically writing Stateless Session Beans (SLSBs) and Message Driven Beans (MDBs) for asynchronous processing.
Object-Relational Mapping (ORM): Strong skills in the Java Persistence API (JPA), specifically utilizing EclipseLink as the persistence provider, configuring transactional properties (JTA), cache coordination, and custom session customizers.
Asynchronous Messaging (JMS): Experience configuring and integrating Java Message Service (JMS) queues and topic-based destinations (e.g., inbound/outbound channels, diagnostics queues, and custom correlation IDs).
Web Services: Solid understanding of creating and exposing SOAP Web Services (JAX-WS) from EJB Session Beans.

Frontend & UI Framework (Oracle ADF) * Oracle ADF Suite: Mastery of Oracle Application Development Framework (ADF) 11g/12c, including ADF Faces, ADF Controller, and ADF Model layers. * ADF Controller & Task Flows: Comprehensive experience designing bounded and unbounded ADF Task Flows, managing region popup beans, page flow scopes, and task flow calling conventions. * Data Bindings: Expert knowledge of configuring page definitions (pageDefs) and binding bindings (DataBindings.cpx) to expose business services to the UI. * JSF & Templating: Proficient in JSF (JavaServer Faces), creating .jspx pages, .jsff (JSF fragments) templates, and customizing ADF Skins (Trinidad CSS). * UI Error Handling: Custom handling of UI and data control exceptions and custom phase listeners.
Database Layer (Oracle Database & PL/SQL) * Advanced PL/SQL: Mastery of writing complex Oracle PL/SQL database structures, including robust Packages (pks/pkb), stored Procedures, Functions, and Triggers. * Materialized Views: Designing and maintaining Materialized Views (MVs), MV Logs, and configuring Oracle DBMS Scheduler Jobs to manage scheduled refreshes. * Database Objects: Experience working with Oracle Sequences, custom Database Types (Arrays), and SQL query optimization.
System Integration & Standards * Logistics Standards: Familiarly with DLMS (Defense Logistics Management Standards) and MILSTRIP EDI transaction sets (e.g., 511R, 527D, 846R, 940R, 945A, 947I, 869F, 869A, 856S). * Data Processing: Experience writing parsers and handlers for flat-file pre-processing, XML mapping, CSV files, and Excel sheets (utilizing Apache POI libraries). * Security Integration: Implementing role-based security configurations via weblogic-application.xml and WebLogic security realms.
Build, CI/CD, & Development Tools * IDE: High proficiency with Oracle JDeveloper (11g/12c) and SQL Developer / TOAD. * Build Tools: Experience with Apache Maven (for multi-module project structures and local repositories) and familiarity with Apache Ant. * CI/CD & Source Control: Experience with Git and writing automated deployment pipelines (Jenkinsfile). * Application Server: Familiarity with Oracle WebLogic Server (deploying EAR/WAR archives, defining data sources, JNDI queues, and utilising Fast Swap).
Testing & Code Quality * Unit Testing: Strong focus on quality code with JUnit test suite creation and utilizing mock frameworks (mocking EntityManagers, Queries, and Logger Facades).