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JPA Upwork freelancers typically receive a client rating of 4.64.

Last updated: October 1, 2015
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Ezekiel Baniaga

Ezekiel Baniaga

Ezekiel Baniaga - Software Developer

Philippines - Tests: 4 - Portfolio: 3

With 5 years experience in various areas of Software Development. Concentrated on different open source technologies to provide clients with a low cost but high quality end results. Below are my mastered technologies and platforms: Enterprise: Java, NetBeans Platform, EJB, JPA, JAX-RS, Hibernate, JBoss Application Server, Apache HTTP Server, Tomcat, Jetty Reporting: JasperReports using iReport. Database: PostgreSQL, MySQL, Sybase, JavaDB, HSQL Software bug-tracking and management tools: Subversion, CVS, Trac, Kenai

100% Job Success
$13.33 /hr
4,014 hours

Andrey Chorniy

Andrey Chorniy Agency Contractor

Senior Java (JEE and Android) Developer

Ukraine - Tests: 3 - Portfolio: 7

During my 11 years experience I've worked with a lot of java technologies and frameworks, performed a lot of refactorings and system re-deisgns and application performance tuning. My latest experience include application development for Android platform and web-applications with Java/Jboss-Seam/JSF/Hibernate/Spring. System integration with CMS systems like Alfresco, Artesia (OpenText) I have strong background in application performance tuning. Follow the best OOP principles and Design-Patterns. I also have an experience in developing information retrieval systems, datamining, textmining, evolutionary/genetic algorithms. I'm looking for challenging Java/JEE/Android projects.

Groups: Android, Sun Certified Professionals

Associated with: Texus

100% Job Success
$30.00 /hr
2,901 hours

Allan R.

Allan R.

Java Tech Lead

Philippines - Tests: 10 - Portfolio: 13

I am a Software Engineer with 6 years of solid java experience. I have been involved in all aspects of the software life-cycle, from analysis and design, server to client development using agile methodologies, testing, installation and deployment of web applications. I have also contributed solutions to opensource projects namely, Eclipse IAM and NPanday for 3 years. I have used a wide range of enterprise technologies and tools and my goal is to find interesting work opportunities in web development.

100% Job Success
$22.22 /hr
1,070 hours

Ramamohan Reddy Siddu

Ramamohan Reddy Siddu Agency Contractor

Java/J2EE/Struts/Spring/Hibernate/SOAP/Restful/SOLR Developer

India - Tests: 8 - Portfolio: 2

***** 1700+ odesk Hours ***** Java/J2EE/Struts/Spring/Hibernate/SOAP/Restful/SOLR Developer Specialising in back end development with front end as well. I take interest in whatever I do and enjoy learning new things by way doing my job. Below are more core skills and strength - Java - J2EE - Spring - Hibernate - Web Services - Rest - JPA - Apache SOLR - Javascript - AJAX - Jquery - NodeJS - HTML - CSS

Associated with: Verare Technologies Pvt Ltd

86% Job Success
$12.00 /hr
1,757 hours

John L.

John L. Agency Contractor

Web Developer Wordpress/Codeigniter/Redis/Php/MySql/jQuery/CSS

Bolivia - Tests: 5 - Portfolio: 3

5+ years PHP development, currently working with Wordpress, Codeigniter, Redis. PSD to Theme, Theme Customization Frontend / Backend, development of plugins / widgets, responsive design, web design with bootstrap. Experience with databases mysql / sqlserver / postgres / redis, ORM (Doctrine / Hibernate / JPA). Seeking opportunities for web development without limiting the use of new tools.

Associated with: Cbba Devs

98% Job Success
$16.67 /hr
1,277 hours

Resa R.

Resa R.

Full-stack Java Developer

Indonesia - Tests: 11 - Portfolio: 3

I am a Java Developer, working as freelance Java Developer, mainly in Upwork. I am very passionate in Java and java-related technology. My experience mostly in business computing and information system area, using Spring MVC or JSF as web framework, and Spring Core or JBoss Seam as Integration framework, and Hibernate as favorite Java Persistence API (JPA) implementation. If my clients requires no casual application server, I like to use spring-boot backed by spring-data platform for easy to use and more "microservice oriented" approach. Mostly using JUnit for testing, except for JBoss Seam, I am using TestNG which is bundled together with JBoss Seam distribution. I am also interested in database design and software design. I believe that great software not only mediocre work of typing, but also comes from thoughtful process. I am a quick learner, and In my spare-time, I am writing some personal open source project and small proof-of-concept about java-related stuff in my GitHub public repository. During my work, I am using my Thinkpad T430s with Intel i7 processor, 16GB of RAM, 256 SSD and 23 inch external monitor that running latest stable version of Ubuntu Linux. Communication is important in remote work, and for this purpose I have 2 link dedicated internet connections to my workspace. If you need my detailed skill abilities, below is what I have experienced in: - JPA 1.0, JPA 2.0, with Hibernate. - Bean Validation Specification with Hibernate Validator. - Dependency Injection with Java DI (JSR-330), Java Context and Dependency Injection for Java EE Platform (JSR-299), and Spring Core as most popular (but non-standard) Java Dependency Injection Framework. - Java Web Framework with Spring MVC and JSP, or Java Server Faces (JSF) with Facelet and Primefaces. - Spring Boot, Spring Data stack. - Java Web/Application server with Tomcat, JBoss AS/Wildfly, or Websphere AS. - Logging with SLF4J as a wrapper to Log4J or Logback. - JUnit or Test NG as testing framework. - Ant, Maven or Gradle as build and dependency management tool. - HTML 5, CSS 3, JavaScript, JQuery, Twitter Bootstrap, and transparency.js - Third Party API such as Xero API, Open ERP Java API, Braintree Payment API, and Social APIs (Google, Twitter, Facebook, GitHub, etc.) - Linux/Unix or Windows. - MySQL, Postgre SQL, or Microsoft SQL Server for RDBMS. - Couchbase for No-SQL solution. - Elasticsearch stack or pentaho for data integration, advanced search, reporting and data analysis solution. Thanks, Resa

100% Job Success
$27.78 /hr
3,166 hours

Kusum A.

Kusum A.

Senior Software Engineer/JavaEE Developer

United States - Tests: 7 - Portfolio: 8

Enthusiastic & passionate towards software development having more than 5 years of professional experience in software development especially Enterprise application development using Java and Java EE frameworks. Some of my major skill sets are: Java(Core and Advanced),Spring, Spring MVC,JPA,Hibernate,SVN,GIT,Maven,JSP,Servlets, HTML,CSS, MySQL, Javascript, Angularjs, jQuery etc. I also have some experience in Mobile Application development using Android and Ionic framework.

100% Job Success
$30.00 /hr
2,361 hours

Arnab Karmakar

Arnab Karmakar

Java/J2EE/MQL4/Forex/Futures/Stocks Developer/Trader

India - Tests: 5

Over 6 years 6 months of Professional Java Enterprise Software Analysis, Design & Development experience java/j2ee technologies Over 6 years 6 months of experience in full software development life cycle (SDLC) using agile Development methodology such as Rational Unified Process, Scrum, and agile Programming Expert in collections, core java. Industry Exposure includes Finance/Healthcare/Technology/Gaming. Expertise with Hibernate framework/JPA. Experience in Service Oriented Architecture (SOA) and Distributed Components Architecture with Web Service, SOAP, EJB Service, and Messaging Service Proficient in core Java Enterprise technologies such as EJB(session bean, entity bean, message driven bean, JMS, JTA,JAAS, RMI, Java Web Service, Java SOAP, Java Thread, Java Socket, Java Servlets, JSP, JSF, JSTL, Custom Java Tag Library, JDBC, Java Collections Framework, Richfaces, Swing etc Proficient in Message Oriented Middleware (MOM) technology such as JMS, Web Service SOAP,IBM WebSphere MQ (a.k.a. MQ Series) Designed SOA using WebSphere process server and MQ Series as message broker Excellent in object-oriented analysis, design and development skills using Java Design Pattern, Java best practices and UML modeling (Use Cases, Components Structure, Class Hierarchy, State and Processes, etc.). Implemented various design patterns from following categories Creational pattern - Abstract Factory, Builder, Factory, Prototype, Singleton Structural Pattern – Adapter, Bridge, Composite, Decorator, Façade, Flyweight, Proxy Behavioral Pattern – Chain of Responsibility, Command, Interpreter, Iterator, Mediator, Memento, Observer, State, Strategy, Template Method, Visitor JEE pattern – MVC, Business Delegate, Composite entity, Data Access Object, Front Controller, Intercepting Filter, Service Locator, Transfer Object Excellent Oracle 10g, Oracle 9i/8i, PL/SQL , SQL Server MySQL , DB2 database skills (Store Procedures, SQL Query) Excellent Web 2.0 Technology skills such as PROTYPEJS, JQUERY, XML, AJAX, HTML, DHTML, CSS, JavaScript (oop), JSON. Knowledge of action script 3.0 Experience with XML/XSL/XSLT/XQUERY/XPATHDOM/SAX. Used WS-security. Experience with Java Enterprise Application Servers such as IBM WebSphere, BEA Web Logic and Tomcat. Developed server-side components, three-tier architecture and various multi-platform integrated systems. Excellent Working Experience on IDE tools like RAD, Eclipse, WSAD and NetBeans. Experience in JUnit testing framework and in ANT build environment. Experience in working with Websphere portal Experience in writing Stored procedures and triggers Experience in using XDoclet to generate EJBs Coordinate various tasks and work well within a team environment. Excellent communication and inter-personal skills

Groups: Sun Certified Professionals

$38.89 /hr
4,437 hours