J2EE Developers & Programmers

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Hire a freelance J2EE developer on Upwork to develop, build and deploy web-based enterprise applications online. These experts can use Enterprise JavaBeans (EJBs) and Java Database Connectivity (JDBC) to provide threading, concurrency, security and memory management to your database.

Java 2 Platform Enterprise Edition (J2EE) is a platform-independent Java runtime environment and API geared towards the development of web-based enterprise applications, including network and web services. It uses Java Server Pages and servlet code to create HTML and other data formats for scalable, reliable and multi-tiered web applications. On Upwork, the world’s largest online workplace, web developers use the J2EE framework to create Java apps, webpages, databases and networks.

Browse J2EE job posts for project examples or post your job on Upwork for free!

J2EE Job Cost Overview

Typical total cost of Upwork J2EE projects based on completed and fixed-price jobs.

Upwork J2EE Jobs Completed Quarterly

On average, 42 J2EE projects are completed every quarter on Upwork.

42

Time to Complete Upwork J2EE Jobs

Time needed to complete a J2EE project on Upwork.

Average J2EE Freelancer Feedback Score

J2EE Upwork freelancers typically receive a client rating of 4.59.

4.59
Last updated: May 1, 2015

Popular J2EE Searches

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  1. Jonathan C.

    Jonathan C.

    Consultant

    United Kingdom - Last active: 3 days ago - Tests: 1

    I have a UK university PhD, in Artificial Intelligence, and the business management skills to match, together With 15 years of Delphi, C++, Java, SQL, and Object-oriented analysis and design experience. I specialise in development including protocol specification, thread management, distributed communication and database transaction management. I have retro-fitted software in tasks ranging from installing improved modules to sophisticated Artificial Intelligence sub-systems. I can provide the often essential empathy with the contract holders, and the pragmatics to satisfy the demands of management. I have 20 years of competency in the software industry, and have a proven track record that will guarantee the successful realisation of your system requirements. I have designed and implemented systems used by multi-billion turnover corporations around the world, saving millions of pounds savings per year. My scope in system design and development ranges from individual utilities and embedded operating systems, through to large-scale corporation-wide distributed architectures. I am also able to provide a code debugging and fixing service, either onsite or online. I can give workshops and can facilitate training of new software developers, both in-house and online. I have managed my own team and maintained their skills matrices, ensuring training has been current. I have defined and managed new product releases and have written instruction manuals for new and "super" users at the customer end of the project.

    $105.56 /hr
    2,384 hours
    4.96
  2. Hoat Le

    Hoat Le Agency Contractor

    Full-Stack Developer

    Vietnam - Last active: 1 day ago - Tests: 14 - Portfolio: 7

    • I'm a talented Web and JavaScript developer. I've got extensive experience working with Java, JavaScript and Python. I'm also co-founder, team leader at Teracy where we do outsourcing and product development. • I'm expert in the following fields: JavaScript, Python, MySQL, PostgreSQL, Java, HTML5, CSS3, OOP, AJAX, XML, Design Patterns, software architecture, jQuery... • I'm looking for opportunity to use my working experience to build robust websites from ground up for your business.

    Associated with: Teracy, Kombai Team

    $33.33 /hr
    2,539 hours
    4.88
  3. Vo K.

    Vo K. Agency Contractor

    Senior EMR Java PHP C# Engineers

    Vietnam - Last active: 5 days ago - Tests: 3 - Portfolio: 5

    - Experience in application & web development experience in consulting, design, developing and maintenance on application software development including sales automation projects. - Good R&D, Specialist Electronic Medical Record and successfully to pass 2 International Certifications for US client: (E-Prescribing and ONC certification). Specialist in Agile Software Development by using OOP, Java, Ruby on Rails, TDD, SCRUM, XP, UML, Design Patterns - Work under pressure, make decision, solve problem quickly - Good work on Java J2EE, Spring, Struts, Play, JSF, JAVAFX, Vaadin, Tapestry,Wicket, FLEX, Spring, Struts, Hibernate Frameworks) - Experience working on C# WPF, WCF, METRO WIN 8, Silverlight,... - Experience on PHP: Yii, Codeigniter, Zend FW, CakePHP. Laravel. - Application Developer, Database Administrator. Particularly interested in client/server, WebService, Remote and relational database design using Oracle, NOSQL, MYSQL, and MS-SQL Server 2000, 2005. Javascripts: Jquery, Mootool, EXTJS, XML JSON,.. - OS: Linux, Centos, Fedora, Ubuntu, Windows, ... - Experience using GIT, VSS, SUBVERSION, GITLAB, GITHUB, - Specialist on Agile Methodology: SCRUM, XP using Mingle, Pivotal Tracker - Project: 1. RealEstate (www.diaoc24g.com) BY C#, ASP.NET 2. Ecommerce Travel Photos site (http://www.josephhendrixphotography.com) by C#, asp.net 3. PTS project ( PROTOTYPE TRACKING SYSTEM) for Chartered Semiconductor Manufacturing(J2EE, Spring, Struts, Hibernate). 4. 3 years worked for HEALTH CARE software:(Get Prescription' Certification of Surescripts(NEWRX, RXHUB, REFREQ, REFRES...) - Android for Health Care that help doctor check the patient from mobile Phone and synchronize data between Mobile Phone and Server Site. This function will help the doctor is easier to check inpatient, history visit, CPT, DX, ... - Worked HEALTH CARE SOFTWARE project, SuperEMR is a proven, affordable, and comprehensive electronic medical record system designed for small practices. Patient information including past medical and social history, encounters, diagnosis, medication, laboratory results, hospital reports, and medical imaging dicom results can all be stored electronically in secure databases. The system is web-based, allowing simple yet secure access to the patient information from anywhere and anytime. Daily remote backup in available for free for protection against system failures or natural disaster Development on this project (superemr.biz, superemr.com,superemrusa.net) Responsible for working with the client on implementation, fix bug, maintenance, managing project resources I did good job AND got the SURESCRIPTS AND RXHUB INTERNATIONAL CERTIFICATION for HEALTHCARE SOFTWARE (superemr.com). Work on DICOM open source project that used JAVA SWING to help the doctor can view XRAY, DICOM images, Web Application development. Database: MYSQL Client: US, Language: JAVA, WEBSERVICE, JNLP, PHP, webservice on UBUNTU, FEDORA

    Associated with: agileitvn

    $33.33 /hr
    1,272 hours
    5.00
  4. Paruyr H.

    Paruyr H.

    Lead Java/JavaScript Engineer

    Armenia - Last active: 1 day ago - Tests: 2 - Portfolio: 7

    Over the last 8+ years, I am working as java software developer, mainly specializing on web and/or mobile based applications development. I'm creating Single Page Applications with RESTFul API support and/or any type of applications based on Java/JavaScript.

    Groups: Application Developers Alliance

    $33.33 /hr
    3,542 hours
    4.82
  5. Larry Myers

    Larry Myers

    Senior Web developer/designer

    Canada - Last active: 1 day ago - Tests: 3 - Portfolio: 3

    Hi, there! Thanks for viewing my profile. I am a highly motivated, enthusiastic, and flexible web developer and have been consulting and developing websites for over 8 years with many of web programming languages. I also strive to create well structured and thoroughly tested code. On projects where it is possible I implement thorough unit tests to ensure that the code base remains stable. I primarily work in a Linux environment, both for development and deployment. Almost all of the tools I use for development and deployment are open source. I am very comfortable with working on the command line and performing many server administration tasks. More details on my actual programming experience below. Ruby on Rails, Spree eCommerce AngularJS, Backbone Marionette, Bootstrap Jade/Less/Haml/Bootstrap Java J2EE (Spring, Struts, Jersey, JBoss, Hibernate) PHP - CodeIgniter, CakePHP Python/Django AWS, Heroku Stripe, Braintree Salesforce, SugarCRM, APEX, RTB, CPC, SFDC, CRM Modern HTML5 JavaScript Frameworks Postgres, Oracle, MySQL

    $50.00 /hr
    1,130 hours
    4.85
  6. Radu B.

    Radu B.

    Senior Html/CSS and Java/J2ee developer, technical leader

    Romania - Last active: 7 days ago - Tests: 8 - Portfolio: 13

    Front End developer with strong HTML CSS experience. I am working as an technical leader for an large software company in USA. I have extensive knowledge of HTMl CSS, Java, J2EE and SQL. My goal is to work as a contractor on short and long term projects; to have happy returning employers that always come back with new contracts.

    $35.00 /hr
    1,314 hours
    4.85
  7. Ravi shankar S.

    Ravi shankar S. Agency Contractor

    1st Rank, Salesfroce Certified Developers with 7+ yrs experience

    India - Last active: 7 days ago - Tests: 3 - Portfolio: 1

    Over the last 7+ years, I have developed a wide range of applications on force.com platform. During this period I worked with each and every component of the Salesforce. I have provided exceptional quality work to customers. Here is a list of some of the work done by me and these apps are rated as very good on AppExchange: http://appexchange.salesforce.com/listingDetail?listingId=a0N30000003J6KcEAK http://appexchange.salesforce.com/listingDetail?listingId=a0N30000003IleFEAS http://appexchange.salesforce.com/listingDetail?listingId=a0N30000003J4NhEAK http://appexchange.salesforce.com/listingDetail?listingId=a0N30000003J4NhEAK http://appexchange.salesforce.com/listingDetail?listingId=a0N30000003J4NmEAK http://appexchange.salesforce.com/listingDetail?listingId=a0N300000030ptZEAQ http://appexchange.salesforce.com/listingDetail?listingId=a0N30000001tc1DEAQ http://appexchange.salesforce.com/listingDetail?listingId=a0N30000003Ilf6EAC http://appexchange.salesforce.com/listingDetail?listingId=a0N30000003J2fBEAS I am also having awesome experience on Data Migration, Integration, Web-services, Migration tools etc.

    Groups: salesforce.com

    Associated with: Simplyforce Technology Agency

    $40.00 /hr
    14,513 hours
    4.99
  8. Jaydipsinh Raulji

    Jaydipsinh Raulji Agency Contractor

    Senior Oracle APEX Consultant / Senior Oracle Developer

    India - Last active: 11 hours ago - Tests: 3 - Portfolio: 7

    Over the last 9 years, I have developed a wide range of web applications & business solutions using Oracle APEX , Java, J2EE & Oracle technologies including sites for startup companies and small & large businesses. My core competency lies in complete end-end management of a new web based application development project, and I am seeking opportunities to build same from the ground up for you or your business. I also have expertise in the following areas: Database designing, SSL , Ajax, OOP, JQuery and software design and testing. I have worked as a oracle apex consultant for clients from USA, Europe & India and they are prestigious names into ORACLE APEX. * Developed web applications using Oracle APEX, java, j2ee, Oracle ADF, PHP & Oracle technologies. * Logical Database designing, performance tuning. * Developing DB objects like procedures, functions, packages, triggers etc. * Hand on experience on datapump, Oracle Text, Oracle SecureFiles and Scheduler utilities & other DBA activities. * Implementing security (PCI Compliance) of APEX application using Cenzik ClickToSecure Assessment & securityMETRICS * Developed high quality simple to complex Oracle based APEX / ADF applications quickly & efficiently with the integration of other frameworks / Platform like Java, Oracle EBS, JQuery, ExtJs, Jasper Report, Charts, SVG, Web Services, YourPay API , PayPal API, TouchNet API, LDAP Server, Google Calendar, Google Map (with marker solution), Microsoft Calendar , UPS Rating service API & Google Apps API’s etc. * Also implemented security & performance tuning standards/ mechanism. * Developed custom themes & plug-in for apex applications. * Creating APEX reports over OLAP * Excellent Problem solving, debugging, issue isolation and Analytical skills. * Strong communication, interpersonal, learning and organizing skills matched with ability to manage stress and time effectively. * Experienced in working on projects involving integration of multiple technologies to achieve optimized solutions * Ability to communicate multiple teams about project objectives.

    Associated with: ORACLE APEX CONSULTANT

    $25.00 /hr
    1,275 hours
    4.55
  9. Vikram B.

    Vikram B. Agency Contractor

    Technical Manager/Solutions Architect, 15 years of qualitative ex

    India - Last active: 1 month ago - Tests: 7 - Portfolio: 2

    Solutions Architect with 15 years of qualitative experience in the areas of Architecting, Designing & Developing applications Insightful experience in Project Management with vital contributions towards assessment of technologies, and design of value propositions for customer requirements Track record of successfully handling the design and development of applications across multiple industrial segments of e-Learning, Media, Healthcare, Telecom & Computer Systems Demonstrated competencies in the conceptualisation/ creation of flexible/ expandable software architecture to meet client requirements Additional exposure in making RFPs as per clients need & specifications & customizing company’s products Adept in acting as an ambassador of change for successful implementation of business solutions in organisations within pre-set budgets and deadlines

    Associated with: Kapila Software

    $44.44 /hr
    1,184 hours
    4.95