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.

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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: 4 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
    2,324 hours
    4.96
  2. Ivan K.

    Ivan K. Agency Contractor

    Senior Coldfusion Developer, Dev Team Leader

    Russia - Last active: 1 day ago - Tests: 4 - Portfolio: 17

    I have 13 years experience in software development. Coldfusion is my primary area of expertise. I am focused on web application development. Here is a list of my most recent and current work: 1. Developed Hackers trap subsystem. I came up with the algorithm to protect web applications from hackers. 2. Help reduce the cost of application maintenance. There are a lot of applications with bad code quality. It leads to a lot of defects while maintenance + clients over pay for adding new functionality. I rewrote a lot of applications with clear architecture, design and code reduce the cost of application maintenance. 3. Help improve web applications performance (page loading): code optimization, sql queries optimization, changing of settings in Coldfusion Administration and MS SQL, hardware upgrades. 4. Integrated eCommerce web applications with Amazom (AWS) to upload products to Amazon, receive orders and so on. Products like Gold Rings, Stones, Candles, Clothing. 5. Integrated eCommerce web apps with eBay to upload products to eBay, receive orders, etc. 6. Integrated eCommerce web apps with payment systems like Paypal (including credit cards via Paypal), Secure Trading, SagePay, Pay4Later 7. Developed mobile version of websites using Jquery Mobile or flexible version with Bootstrap. 8. Integrated schema.org into products page for eCommerce web apps 9. Resolved issues with indexing of pages and images on Google 10. Installed and configured Coldfusion 11/IIS 8 on Win 2012 by using Coldfusion 11 Lockdown guide (Secure Installation) My previous work experience includes working with Luxoft and Gehtsoft Companies. Developed and managed applications for Boeing and FXCM companies. - 4 years in project management (up to 25 specialists in my team: analysts, developers, architects, testers); - 6 years in developers team management (up to 15 specialists in team: developers and architects); - 6 years in code development. About 40 projects with content hours from 1000 to 10000 were successfully completed. I have an advanced knowledge in SDLC (Macroscope P+ methodology). Participated in preparing projects for CMMI auditing. I provide the following services: 1. Project schedule development 2. Risk management 3. Operative team management 4. Budget management 5. Requirements development 6. Architecture and design development 7. Code development 8. Test design development and testing 9. User guide development 10. Deployment documentation development

    Associated with: Handsoft

    $40.00 /hr
    7,947 hours
    5.00
  3. Hoat Le

    Hoat Le Agency Contractor

    Full-Stack Developer

    Vietnam - Last active: 2 days 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
    2,523 hours
    4.88
  4. Vo K.

    Vo K. Agency Contractor

    Senior EMR Java PHP C# Engineers

    Vietnam - Last active: 4 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
    1,270 hours
    5.00
  5. Alexander L.

    Alexander L.

    Java J2ee Master

    Ukraine - Last active: 11/27/2014 - Tests: 1 - Portfolio: 2

    With over 8 years of experience in IT, my goal is to build professional Java applications. My areas of expertise include a broad range of technical experience focused on software development and data design. In the last projects I've used Java-Swing, Applets, Java Processing 2.1, MT4j, JBoss 5.1, Oracle 9, YUI, Javascript, HTML, CSS, JDBC, EJB 2.1 and a lot of other libraries and technologies. Also I have some experience with Python.

    $150.00 /hr
    259 hours
    5.00
  6. Fabio B.

    Fabio B.

    Software engineer

    Colombia - Last active: 2 months ago - Tests: 3

    I am a developer and architect with vast experience in many areas and languages. I love complex issues and especially am eager to jump on new challenges and learn new stuff. Expect well-delivered work above expectations with excellent documentation, reporting and communications. This is your chance to hire an experienced professional matured in Switzerland in high-demanding Swiss bank environments and now living in South America at unbeatable rates! And I fluently speak 7 languages...

    Groups: Crossrider

    $44.44 /hr
    265 hours
    5.00
  7. Priyamvid R.

    Priyamvid R.

    Excel VBA Macro + Access Database Programmer

    India - Last active: 19 days ago - Tests: 11 - Portfolio: 4

    - Microsoft Excel VBA Macros Programming , Macro Automation Expert; Android Application Development - Coordination and implementation of automation projects; - Dashboard and Automated Reports Project; - Pivot, Power Pivot, VLOOKUP, HLOOKUP, Data Connections, Emails - Implementation of Supply Chain software; - Office automation projects (Access, Excel, VBA); - Oracle, MySQL, SQL Server, Stored Procedures - Microsoft Excel, VBA, MSAccess & SQL: 5 years experience; - Software Development & Testing , Software Implementation

    $22.00 /hr
    259 hours
    4.85
  8. Mihovil R.

    Mihovil R.

    Lotus Notes/Domino and Java/J2EE developer

    Croatia - Last active: 6 days ago - Tests: 14 - Portfolio: 6

    I am a passionate J2EE/Java, Lotus Notes (certified), Node JS software developer and architect with over 6 yrs of professional experience including other programming languages like JavaScript, C# Vb.net and others. Wide range of experience in developing and maintaining Java/J2ee web systems, Lotus Notes web and client applications and plugins as well as Node JS applications and REST APIS. I, also, have a great deal of experience in PDF generation MS Office/OpenOffice document automation and assembly, VB, VBA, various document format manipulations. My goal is to make my employers happy and content with solutions I make them. I do not do mediocre jobs and do not make/give mediocre solutions so choosing me as your contractor offers a great deal of quality and professionalism. I also offer a lot of consultation services on many software development areas and always for free when they are a part of my project. I pride myself in good work ethics and moral and I know my employers see and value it. Interesting, useful and challenging projects make my heart race, motivate me and I am always willing to step in or join in any way possible. You got one? Send me a short note about it ASAP !

    $25.00 /hr
    1,030 hours
    4.97