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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, 489 Java projects are completed every quarter on Upwork.

489

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 4.72.

4.72
Last updated: August 1, 2015
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  1. shakeel abbas

    shakeel abbas

    Java,J2EE,Spring,JSF,Struts,JAX-RS,Angular JS,Knockout JS,AWS,Mule ESB

    Pakistan - Tests: 3 - Portfolio: 5

    Over the last 6 years, I have developed websites using HTML, CSS, JavaScript, JSP/Servlet, Struts, Spring, Hibernate, and MySQL, SQL Server, Oracle 10g,11g. I am an outstanding Java/Web Developer with experience in all phase of the software development life cycle, from requirement analysis and design to implementation, testing and maintenance. I am seeking opportunities to build websites from the ground up for you or your business. SUMMARY OF QUALIFICATIONS - Good understanding of Object-Oriented Design and Programming. Experience in full product lifecycle. - Experience in using Java, including JSP, Servlet, Spring, Hibernate, JAX-RS, JAX-WS and JUnit test. - Experience in ANT, SVN, Eclipse, and Apache Tomcat. - Experience in MySQL, JFreeChart, D3Charts, AWT/Swing, JavaScript/JQuery. HTML, CSS, and XML. - Operating Systems: Linux, Windows, and UNIX. - Strong learning and problem solving abilities. Good team worker. I have been developing web application since a while so I have had exposure to evolution of the web technologies that started from synchronous request/response and then evolution of ajax XmhttpRequest object and then a variety of ajax tools and frameworks like Prime faces, Rich Faces, JQuery and many others. And now in the current era we are moving towards pure JS front end frameworks like Ext JS, Angular JS, Knockout JS, Node JS. Therefore I believe that I can develop and design any web application with current trends and technologies.

    $22.22 /hr
    168 hours
    4.92
  2. Kostiantyn K.

    Kostiantyn K.

    Software QA Engineer

    Ukraine - Tests: 4 - Portfolio: 2

    Hi, I'm Software Quality Assurance Engineer with about 2 years in testing Websites, Desktop Applications, Games, and Mobile Applications(iOS and Android). • The list of projects/applications tested include online social games (Facebook, VK, WEB, mobile versions ) and WEB sites • Utilized JIRA to report product bugs, bug isolation, to verify fixed bugs and issue resolution • Mobile devices testing: Android SDK for capturing log and steps to reproduce fails. • Created and maintained test documentation between releases: test matrix, test cases, test reports • Participating in meetings with QA and project teams to discuss testing process and suggest improvements • Performing manual functionality, smoke, sanity, localisation, regression, new feature implementation, verification, release acceptance, and integration testing on various browsers and devices • Provided installation and configuration of the Virtual Machines, Browsers, etc. • Studied each project business and technical documentation to develop and execute test cases • Communicated with other stake holders – developers, tech support reps to identify and resolve quality related issues Skype ID: korchak03 (24/7 availability for Job related discussion)

    $15.11 /hr
    3,300 hours
    5.00
  3. Zain Bin Zafar

    Zain Bin Zafar

    Web and Android developer

    Pakistan - Tests: 6 - Portfolio: 9

    I am Mobile and web engineer. I have profound skills in both dimensions. I am expert at Android, Ruby, python, Javascript, HTML, CSS, Java, php, mysql, postgress, mongoDB, C++ and C# along some fancy frameworks like ruby-on-rails nodejs, angularjs, meteor etc. I am also a good front-end designer I know bootstrap, Sass, sementic-ui, photoshop and other related technologies. I have passion for these technologies and know all the newest and greatest development going in these areas. I am always ready to work on exciting and challenging projects.

    $20.00 /hr
    1 hours
    4.78
  4. Pranshu Praneta

    Pranshu Praneta Agency Contractor

    Software Developer

    India - Tests: 2 - Portfolio: 3

    Over the last years, I have developed a wide range of websites using HTML, CSS, Bootstrap, JavaScript, jQuery, AJAX, PHP, JSP, Servlets, JPA, and MySQL. I have worked on several popular Content Management Systems (CMSs) like WordPress, Moodle, osCommerce, Drupal, SyndeoCMS, Elgg, and Hippo CMS. I also have some experience in the following areas: C, C++, PhoneGap, Apache, Apache Tomcat, SVN, Adobe Photoshop, Adobe Flash Professional, Object Oriented Programming, Design Patterns, and Software Testing. I am comfortable in server-side technologies as well as client-side technologies. Being a Computer Science & Engineering Graduate, I have a sound theoretical knowledge base to back my implementation skills.

    Associated with: Logimetry

    $7.78 /hr
    389 hours
    4.97
  5. Navjot S.

    Navjot S. Agency Contractor

    Linux,Qt,Django Python,iOS,Android,C,C++,Java - 15yrs of development

    India - Tests: 9 - Portfolio: 38

    Dear All, We are looking quality projects where our skills can be best utilized leading to the best contribution to our clients and our personal growth. We are intending to provide efficient, high quality, timely and cost effective solutions in telecom, networking and web development with Linux, Windows, C, C++, Java, Python, Php and various other tools.We are a team of 4 engineers. Engineer-1 Skills:- around 15+ years of Software development in following domains:- - 6+ years, Mobile Apps, iOS, Symbian, J2ME, Blackberry and Android - 4+ years, Embedded Linux, IPTV Solutions, Qt, Qml, C/C++, Python, MIPS boards - 4+ years, C/C++/Java applications and middlewares/libraries. Engineer-2 Skills:- around 5+ years of Web development and designing in following domains:- - 1+ years of development experience in python - 4+ years of designing experience in Adobe Photoshop, Adobe Dreamweaver and Adobe Flash - 1+ years of web development experience inHTML, Javascript, Php and ASP.net - 1+ years of building and customizing open source web tools - joomla1.5/1.6, ZenCart and WordPress. Engineer-3 Skills:- around 4+ years of s/w development in following domains:- - 2+ years of development experience in java - 2+ years of development experience in python Other Skills/Hobby work:- - R & D with windows device drivers - Programming set top boxes - imparting trainings in various programming languages - health, business and technical article writing - translating text to/from English, Hindi, Punjabi and Japanese languages. - logo design- source code testing- source code maintenance and bug fixing Best Regards, N.S.Kanda

    Associated with: WeaveBytes

    $15.00 /hr
    4,196 hours
    3.93
  6. Fatih Coskun

    Fatih Coskun

    Java, MySQL, Oracle, Android, iOS, objective C

    Turkey - Tests: 2 - Portfolio: 1

    Over the last 5 years I have developed a wide range of applications. Some for the companies I have worked, some for freelance jobs and some for national competitions. I have developed web interface with ExtJs for Turkcell (the biggest GSM company in Turkey and East Europe and Mesopotamia area). I developed a J2EE project called "GSM Based Remote Monitoring and Billing" and became the winner of the IBM software competition in 2009. You can see the details at http://www.yazilimakademisi.org/2009/. (It is in Turkish. Sorry.) I have worked for Sun Microsystems before they acquired by Oracle. I worked with them for six moths as a campus ambassador. For the last two years I am working on industry level mobile applications. I have strong experience in Andriod development and I am getting experience in iOS development every day.

    $20.00 /hr
    99 hours
    5.00
  7. Koen B.

    Koen B.

    Senior Mobile App | Backend Developer

    Netherlands - Tests: 5

    On oDesk, I seek challenging projects requiring expert mobile and web skills. From the childhood, I loved programming and to challenge new technology. My goal is to build best career on oDesk and open my own style business on app market. Key Experiences -Languages: Swift, Objective-C, Ruby, Python, C/C++/C#, Java -Platforms:iOS 6/iOS 7/iOS 8, Android, Windows, Mac OS X -DB:SQLite, ODBC, JDBC, MS SQL, MySQL/MySQLi -Cloud Web service, Parse, Amazon -Mobile POS: E-Commerce Design, Security Upgrade -SDK:Marmalade, Cocos2D, Unity,Game Salad Other experiences -WordPress, RoR, Trigger.io, Paypal, Stripe, BLE, Bluetooth, Bitcoin, NFC, iBeacon Thanks Koen

    $39.80 /hr
    108 hours
    4.10
  8. Manish P.

    Manish P. Agency Contractor

    iPhone::iPad::Android::.Net::PHP::XHTML::HTML::CSS::Javascript:MySQL

    India - Tests: 10 - Portfolio: 6

    I have 7+ years of experience with iOS, Android and Web development. I am managing team of iOS, Android and Web developers. I will not let you down with your work. That's why my punch line is: "Do Best, Deliver Best" Just give us your product idea and take your product out. I have following skills. ✔ Native mobile development: iOS, Android(Objective-C, Swift, Java, C, C++) ✔ In-App Purchase, Core Location, iAd, Admob, InMobi, StartApp, and many more ✔ Digital Image Processing, Image Capture, Image Editing, Image Segmentation, Image Analysis, Image Manipulation, Filtering, OpenGL, OpenGL ES, OpenCV, Paint Drawing, Mask, Saturation, Sharpness, Contrast, Hue, Brightness (iPhone/Android) ✔ Barcode, QR scanner (iPhone/Android) ✔ Push notification(iPhone/Android), Local Notification on Mobile app ✔ Web Services: XML, JSON, SOAP API, REST API ✔ Device Communication: WiFI, Bluetooth, NFC ✔ Social Media (Sharing networks): Facebook, twitter, Linkedin, Youtube, Instagram, Vimeo ✔ Instant messaging & Chat: Jabber, XMPP ✔ Location: Google maps, Foursquare, GPS, AGPS, Geolocation, Geo Tagging, Street Map ✔ Parse backend: Parse.com, Parse REST API ✔ Cloud: Amazon S3, Amazon Cloud, Google Cloud ✔ Database: MySQL, SQLite, SQL Server, ODBC, Oracle ✔ Web Development: PHP, ASP, C#, VB, .Net and frameworks, HTML, HTML5 ✔ Source code versioning: GitHub, SVN, CVS, BitBucket ✔ Project Management and issue tracking: Redmine, Basecamp, GitHub, etc ✔ CMS: Code Igniter, Drupal ✔ Audio, Video management in Mobile app This is not just end, we are ready to learn new technology that you prefer to use. You just give us details and we will make your dream comes true.

    Groups: Android

    Associated with: MacyMind Agency

    $22.22 /hr
    577 hours
    4.94