Senior Java Developers & Programmers

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Post your Java projects on Upwork and hire expert software engineers and senior Java developers. They can create mobile applications for Android and iOS, redevelop Android widgets, modify and add new Java scripts to your custom Java software, or develop GUI applications with the Swing GUI widget toolkit. The java developers on Upwork are experienced in Java persistence frameworks (like Hibernate), web development, security or database frameworks and Java project lifecycle management tools (like Maven). They can also check, fix or add new Java classes into your Java code, or manage your software debugging, quality control software development or testing tool programming.

Java is a class-based, object-oriented computer programming language that is ideal for cross-platform application development. It comes with a library of commonly used classes and utility functions, called the Java API. On Upwork, the world’s largest online workplace, companies hire experienced Java architects and software engineers to develop all kinds of cross-platform applications, from torrent clients and media players, to helpdesk tools and mobile apps.

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Java Job Cost Overview

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

Upwork Java Jobs Completed Quarterly

On average, 623 Java projects are completed every quarter on Upwork.

623

Time to Complete Upwork Java Jobs

Time needed to complete a Java project on Upwork.

Average Java Freelancer Feedback Score

Java Upwork freelancers typically receive a client rating of 4.70.

4.70
Last updated: May 1, 2015
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  1. Ramesh V.

    Ramesh V. Agency Contractor

    Expert Java J2EE Developer

    India - Last active: 2 days ago - Tests: 3

    I am an expert Java J2EE developer with 9 years of coding experience I provide outsourced services for Java, J2EE and Angular JS. I can handle a project from requirement gathering, analysis, design, coding (both backend and frontend), Junit Test cases and automation tests. Project Experiences: Yayo is an eCommerce platform stitched specifically for the needs of Film Production Companies. I have designed and developed API's for both mobile and Partners, built a portal for Production Company Managers. Involved in the development of a project Moose, which uses GWT and Sencha GXT. Also implemented Full Text Search in GAE by providing an objectify kind of framework. Designed and developed Sentinel project, which provides Guest Access Portal. Used Free Radius and Jradius modules to authenticate dynamically generated Guests. Sentinel has 3 modules, Admin Portal, Sponsor Portal and Guest Portal. Paladin MultiOS is a Wireless security deployment platform and device tracking/management platform. It provides a reliable and affordable solution for deploying and monitoring secure networks in the age of BYOD. This is deployed on Amazon EC2 linux with tomcat as web server. Eostis is one of the leading classifieds website in France. I have worked to move eostis from the old legacy system to Google App Engine and made it survive from the maintenance issues and frequent server deeds. Involved in the development of several live online projects like http://www.theflowerexpert.com , http://www.pickupflowers.com , http://www.giftsnideas.com and http://www.flowersforcelebrations.com. Migration of a legacy ehealth tool to web application (Central Configurator) by using Spring, Hibernate, Web Services and Ibatis. Migration of a command line tool to GWT + EXT GWT web application. Provided a Command Line Interface for a web application by using Web Services. Google App Engine Projects: Converting SAP reports from email attachments to google spreadsheets. Developed a GAE + Vaadin application for a sales company to maintain there whole inventory.

    Associated with: Soft Suave

    $33.33 /hr
    3,451 hours
    5.00
  2. Richard Wallis

    Richard Wallis

    Java/GWT/Javascript Developer

    South Africa - Last active: 3 months ago - Tests: 4 - Portfolio: 4

    I built MagicScroll.net which is a fully offline capable eBook Reader that runs in all browsers. It has more than 80000 active weekly users. I write code that is well documented and easy for others to maintain, for examples of my work please visit: https://github.com/rdwallis/ My preferred development stack is Java, GWT, Javascript, HTML & CSS for Google App Engine.

    $55.56 /hr
    919 hours
    4.99
  3. Maxim A.

    Maxim A.

    C++/C#/Java Developer

    Ukraine - Last active: 02/27/2014 - Tests: 4

    Hi everybody! I'm experienced developer from Ukraine. I'm writing a quality source code. My applications is using design patterns successfully. My source code is lightweight, flexible, easy to understanding. 10 years experience in a development of applications using C#, C++, Objective-C, Java, PHP, and MSSQL/MySQL/PostgreSQL/Oracle Stack of programming languages: Desktop Application (Windows): C# (with C++ for performance) Web-sites: PHP, CGI(C++), ASP.NET Web application/services: Java, ASP.NET Sometimes I'm developing mobile application for IPhone, Windows Mobile. My experience is advanced in the following area: - Multi-threading programming. - XML technologies - WPF (MVVM) - Socket programming - Autogeneration of source codes As unit-tests framework I'm using NUnit and JUnit I like the Scrum methodology and I try to use it. I have a following infrastructure (it ready to use in your project) Bug tracking: Jira Continuous Integration: Hudson (nightly build, autotest) Version control: Svn, Git Autotests engine: Robot Framework We make business together :)

    $33.33 /hr
    579 hours
    4.65
  4. Mainul Islam

    Mainul Islam

    Enterprise Java/JEE Architect

    Bangladesh - Last active: 03/20/2013 - Tests: 12 - Portfolio: 3

    I have been designing and developing enterprise business application using Java EE, Spring, Hibernate, GWT, JSP, JSF, Oracle/MySQL, PHP, JavaScript, Eclipse RCP etc for more than 10 years. I have worked in desktop application, server side programming and web technologies. I worked as individual and also acted as team manager. I am looking for opportunities where I can leverage my experience and knowledge to deliver best quality software in terms of design, code and usability.

    $33.33 /hr
    128 hours
    5.00
  5. Alex K.

    Alex K.

    Java/Mozilla/C++

    Russia - Last active: 01/08/2013 - Tests: 4 - Portfolio: 6

    I DON'T HAVE TIME FOR ODESK ANYMORE The 2012 year with exception of a couple of months I dedicated to development of my own SAS: http://msgnotes.alehro00.com. Which still requires a decent amount of work in web design and marketing areas. Although the project isn't commercially successful it allowed me to climb the stack of JEE6 technologies. The web server is running under Glassfish on AWS EC2 instance. The client app is Thunderbird add-on. It has commercial and free versions. Starting from 2011 I'm developing mostly with such a tool-set: Eclipse, Java, JavaScript. Over 2006-2010 years, I had participated in development of well known trading and traiding automation system (Multicharts). Also I took part in development of small business applications. The skills I was using extensively those years: development in C++ for Windows, COM servers and clients, multithreading, OOP, STL, boost, .NET. I know that this preamble looks not quite typical. It has simple explanation. I'm in process of transition from C++/C# desktop development to Java based Web development. So, I'm quite professional in .NET but I don't consider .NET as area of my interest any more. Also, since I'm kind of beginner in Java Web development, I'm halving my hourly pay rate.

    $1,110.00 /hr
    284 hours
    4.96
  6. 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
  7. Haris Peco

    Haris Peco

    Eclipse/Java Developer

    Serbia - Last active: 23 hours ago - Tests: 1 - Portfolio: 3

    Eclipse plugins/RCP development with 10+ years experience I like to create Eclipse plugins as well as complete RCP applications. Enjoy to fix hard bugs. Database/SQL development - 20 years I'm working database design, performance tuning of Oracle, MySQL, PostgreSQL...

    $55.56 /hr
    500 hours
    4.88
  8. Paruyr H.

    Paruyr H.

    Lead Java/JavaScript Engineer

    Armenia - Last active: 2 days 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
    3,546 hours
    4.82
  9. Igor Saprykin

    Igor Saprykin

    Intelligent Java Programmer

    Ukraine - Last active: 09/21/2010 - Tests: 4

    My core competence lies in Java/C++ software development. I'm seeking opportunities to build complex systems, preferably with some mathematical background. I also have an experience in using wide variety of tools, technologies and instruments. I'm also found of learning new ones.

    $555.56 /hr
    177 hours
    5.00
  10. Gareth Edge

    Gareth Edge

    Senior Java Developer

    Brazil - Last active: 07/02/2012 - Tests: 2

    Highly proficient SENIOR JAVA DEVELOPER with over 10 years extensive experience building systems for large-scale application development projects. Worked in various business environments including CRM, MRM, finance, CMS, Commercial Middleware and consultancy. Full life cycle knowledge gained from object-oriented analysis, design and development of distributed multi-tier applications.

    $38.89 /hr
    79 hours
    5.00