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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, 575 Java projects are completed every quarter on Upwork.

575

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: July 1, 2015
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  1. Kirill Reva

    Kirill Reva

    Web Developer

    Russia - Last active: 1 day ago - Tests: 8 - Portfolio: 2

    I have been building web applications for over 7 years now. I have a deep background in fundamental PHP5 (with MVC architecture), MySQL, HTML5, CSS3 and jQuery. I am currently focused on Laravel and Wordpress web application work, including building plugins and creating responsive design sites. My previous expertise includes Codeigniter, Yii framework, AJAX, PL/SQL, Oracle DB and Java. Even though I have no proven track record in developing Zend 2 - and Kohana-based sites, I am ready to deal with such projects as well. Regardless of the programming, I am passionate about providing first class results and excellent service. I love presenting the solution I feel is best for my clients and work with them to get them what they need. I am looking for interesting full-time, and ideally long-term projects to keep busy.

    Groups: Application Developers Alliance

    $33.33 /hr
    6,688 hours
    4.99
  2. Jaya A.

    Jaya A.

    QA- Website, Desktop, iOS & Android apps

    India - Last active: 1 day ago - Tests: 4 - Portfolio: 10

    Pointing out bugs and helping you develop a bug free product since 2005. *** 5500+ work hours , 40 + jobs and ** Top Rated**  ISTQB certified in software testing  Full time Freelancer with excellent client review and 5***** in over 35 jobs  9+yrs in QA, testing of Web-sites,mobile, RIA , cloud and Desktop applications  Testing applications is my passion and my profession.  Able to Help in QA and Project Management Profile Overview  Availability 24*7 on Skype or Phone  Completed 5000 hours on oDesk  Good Knowledge of agile and Scrum methodology  Good Experience working with large remote team  Bug Reporting & tracking using Jira, Mantis, Bugzilla,TFS, Excel, Word  Test Plan,Test case design,execution & documentation  UI/UX/Front-end testing, Regression, smoke, black-box, white-box testing  Huge experience in testing iOS and Android based applications. ---------------------------------------------------------------------------------------------------------------- Over the last 9 years I have been involved in testing various types of software ranging from desktop applications to web applications including websites for start ups. - My core competency is in complete testing of the software from the planning phase to sign off. - Testing the software, Dealing with customer issues and closely working with the developers to get them resolved are the fields that I excel in. -I am an ISTQB certified software tester My expertise: --------------------------------------------------------------------- - Creating test plan document - Writing test cases - Documenting change requests - Executing test cases ( Functional, GUI, Usability, cross browser compatibility, Cosmetic errors) - Defect tracking - Writing product Release document - Managing customer issues and getting them resolved at the earliest - Writing technical specifications and FAQ's for websites. Application Tested ----------------------------------------------------------------------------------------- - e-Commerce Application(Magneto, WordPress,OpenCart and etc) - e-learning - Game Application, - ERP Application , - Mobile based Applications and Games - Healthcare and insurance application - Travel Domain - Finance domain - Social Networking website - Official websites for companies - WordPress website (Front end and Backend), - WordPress Plugin, - WordPress Theme - 508 compliance Testing - HTML and CSS validation - API Testing I have done include: --------------------------------------------------------------------- - Functionality testing - Cosmetic error testing - GUI Testing - Performance testing - Cross browser compatibility testing - Smoke testing - Regression testing - Usability testing - Games testing Trackers used for documenting and tracking bug status: -------------------------------------------------------------------------------- Trello Mantis Jira Bugzilla ASP.net starter kit Quality center Test director Microsoft excel and Microsoft office tools Gadgets I work on: ---------------------------- iOS 8.0 ( iPhone 4S) Samsung Galaxy Tab 4 ( Android 4.4.2 - Kitkat ) Operating Systems available to test: ----------------------------------------------------- Windows XP( IE9 , Firefox, Chrome, Safari ) Vista ( IE 9 , Firefox, Chrome, Safari, Opera) Windows 7 ( IE 10 , Firefox 35.0, Chrome 40.0, Safari, Opera) Windows 8 ( Firefox 35.0 , IE 11 , Chrome 40.0 , Safari ) QA methodology and processes: --------------------------------------------------------- CMMI, ISO, Agile Scrum ,waterfall model, V- model I am a disciplined worker, bound to deadlines who has great passion for quality. I assure you quality work in given time.I am also an article writer with great interest in writing IT related documents and answering technical questions. software testing, quality assurance, testing, sqa, manual-testing, smoke-testing, regression testing, quality control, software documentation, usability testing, functional testing, UI testing, boundary-value-testing,test plan creation,test-schedule-creation,test-plan-execution,test-case-generation, Redmine, Mantis, Microsoft Excel, Bugzilla, Jira, Microsoft Office Tools

    Groups: SocialEngine

    $15.56 /hr
    5,861 hours
    4.98
  3. Yury V.

    Yury V.

    Java Developer

    Russia - Last active: 5 days ago - Tests: 4

    Java developer with more than 3 years of experience. Areas of expertise: - Expertise in Application development and support using Java, Servlets, Portlets, JSP, JDBC, Hibernate; - Expertise in JavaScript, jQuery, Bootstrap, HTML, CSS; - Expertise in WebSphere Portal 8.0 (confirmed by the certificate); If I can provide you with any further information on my background and qualifications, please let me know

    $15.00 /hr
    101 hours
    5.00
  4. Ralph Swartwood

    Ralph Swartwood

    Certified WebSphere Administrator

    United States - Last active: 5 days ago - Tests: 1

    I have 10 years experience working with WebSphere Application Server version 3, 4, 5, 6 and 7 on AIX, Solaris, HP/UX, Linux, zLinux and Windows. I am certified in versions 5, 6 and 7. I am looking for short and long term engagements including installations, resolution of a specific problem and ongoing support. I also have experience working with WebSphere Portal Server, Process Server, IBM HTTP Server and Apache. I developed JACL and Jython scripts to automate application deployments and to make configuration changes. I am very familiar with Java programming of servlets, JSP, SQL and JMS. I developed a Nagios plugin that monitored JVM availability and Performance Monitoring Infrastructure (PMI) metrics. I can analyze thread dumps for JVM hang problems and heap dumps for OutOfMemory issues. I also have experience with DirectConnect and training in DataPower appliance administration.

    Groups: TrueBLUE

    $50.00 /hr
    44 hours
    4.60
  5. Ahsan A.

    Ahsan A. Agency Contractor

    Software Engg

    Pakistan - Last active: 14 days ago - Tests: 2 - Portfolio: 1

    - Web Application Developer, Database Administrator, and Software Project Manager in a wide variety of business applications. Particularly interested in client/server and relational database design using My SQL and MS-SQL Server. - Managing and configuring data replication Servers Using MySQL Server - Network Manager with hands on experience of managing 150 node Network and managing and configuring network equipment including exchange server and Active Directory configuration - Implementing Network security using ISA Server and various opensource tools including astro , Microtik. - Configuring ,customization and managing Pridictive Dialers like Goautodial,elastix etc

    Groups: LoginRadius

    Associated with: techaced

    $33.33 /hr
    446 hours
    4.76
  6. Alexey Malov

    Alexey Malov

    System Administator, Web Developer

    Colombia - Last active: 10/12/2014 - Tests: 5 - Portfolio: 2

    Hello, nice to meet you! I am Russian System Administrator and Web Developer living in Colombia. Speaking English fluently and Spanish basically. My passion is to support Linux servers (mostly Debian, but I am familiar with other distributions too), Apache2, Nginx, PHP-FPM, PHP sites, MySQL and PostgreSQL databases, ProFTPd, Java-applications (deployed at Tomcat and JBOSS), systems like Mantis BT, Bugzilla, Jira, Redmine etc. I love automating tasks, so I can write some scripts using Bash, Perl, Python, Ruby, use Fabric or deploy Puppet. You are welcome to ask me to install and configure SMTP servers like Exim, Postfix, Sendmail, POP3 and IMAP servers like Courier, DNS server - Bind and Amazon r53. I worked for some years in monitoring and I am well qualified in installing and configuring Nagios and Zabbix. I have got great experience at setup and support SVN (Subversion), Mercurial and GIT version control systems. I am also professional at site development (PHP, JavaScript, AJAX, HTML, XHTML, CSS). I worked with OpenLDAP and Active Directory. I am able to do some stress load testing for your sites with Apache Benchmark (ab) and Apache Jmeter. I am pretty familiar with such cloud hostings like Amazon WS and Rackspace. I am well aware of different network protocols including HTTP, HTTPS, SMTP, POP3, IMAP, LDAP, DNS, FTP, SNMP, SMPP, SSH. Thank you for your attention.

    $38.89 /hr
    547 hours
    4.66
  7. Sergii K.

    Sergii K.

    .Net/Java Developer | IT PRO

    Ukraine - Last active: 3 months ago - Tests: 8 - Portfolio: 5

    ★★★★★ Top .Net Developer ★★★★★ I am highly skilled developer in .Net stack of technologies with strong network/server administration experience which allow to build full and the best solution depending on customer requirements. I am one who says ‘I am glad I did’ rather than one who says ‘I wish I had’ on top of all my experiences with cut-edge technology. My skill-set: : Back-end: ✔ Java : Java EE, JCF, Multithreading, JDBC, Spring MVC, Hibernate ✔.Net : C#, ADO.NET/Entity Framework, ASP.NET MVC, RESTful API ✔ Grails / Groovy Front-end: ✔ HTML, CSS/Bootstrap ✔ JavaScript/JQuery/AngularJs Hosting: ✔ Windows Azure, GlassFish. IIS, Tomcat Additional background : ✔ Server technologies / AD DS, DNS, Hyper-V, IIS, DHCP, VPN, PowerShell. ✔ Computer science, Artificial Neural Networks, common math and physics. I hope own my company in future. Therefore I look forward to long-term relationship for projects from scratch/"have only specifications" stages.

    $40.00 /hr
    39 hours
    4.95
  8. Andriy Surovets

    Andriy Surovets

    Programmer / Developer

    Ukraine - Last active: 10/03/2014 - Tests: 2

    I am working as software developer for 7+ years. During this I was working on different projects. My primary tasks were Java development, implementing automated and unit test cases, defining requirements. Experience: 2015.03- 2015.07 Assessment reporting tool(Amplify part of News Corp) Web based assessment tools for schools. Provides wide reports for teachers and parents, what helps track students’ performance. Also it’s supports online access to teachers for creating assessments, also uses different teaching tactics and track educational results. Tools and technologies: Java, Spring MVC, Hibernate, Freemarker, JQuery, SQL Server, Maven, Ant, HTML, CSS, GitHub, JUnit, Jenkins. Role: Java developer,Bug fixing and create new functionality in front-end and back-end. 07.2014 -10.2014 Nextance Trilogy. inc Nextance is a system controls contracts, and the relationships they govern. Improving standardization and control of contracts, as well as gaining visibility into their content, improves the results of any business initiative you have in place today. You can benefit from Nextance Contract Performance Management by improving the standardization, visibility and control of your contracts. Tools and technologies: Java/C# Oracle/AG Tamino XML Server/IBM DB2 XML/XSLT/CSS/JS Role: GUI modifications;Business Logic Modification; Add new functionality,Configurated manager 06.2013 - 07.2014 SmartMix Trilogy. inc Provide development, support, testing and continuous integration of numerous products, which are under development of Trilogy network. Working on investigation and development activities on SmartMix direction. Tools and technologies: Java, CSS, JavaScript ,Microsoft SQL Role: GUI modifications; Business Logic Modification; Add new functionality,Configurated manager 03.2012 - 06.2013 Virtual MGA Virtual MGA has a set of core features that are generally present across all clients. In additional to the core features we also offer some premium features that can be layered on top of the core product. Examples of some of our premium features are: Active Contract Management (the ability to manage various contracts both new and expiring and syndicate transactions across multiple contracts), Active Aggregate Management (setting aggregate thresholds by Zone or County or State or a combination of all these s 06.2011 - 02.2012 Hewlett-Packard Create backend functional for Router and coverage this functional Unit test Tools and technologies: C,Java(JUnit),XML Role: Business Logic Modification; Add new functionality,Write JUnit Test 10.2010 - 06.2011 DCM Trilogy. inc The Versata Distribution Channel Management (DCM) software manages the relationship between financial services institutions and the distributors that sell and service their products. Tools and technologies: Java, JSP, XML, XSLT, CSS, JavaScript and OQL (Object Query Language) PostgreSQL, Microsoft SQL, Oracle, DB2 XML/XSLT/CSS/JS Role: GUI modifications; Business Logic Modification; Add new functionality,Configurated manager 10.2007 -10.2010 Nextance Trilogy. inc Nextance is a system controls contracts, and the relationships they govern. Improving standardization and control of contracts, as well as gaining visibility into their content, improves the results of any business initiative you have in place today. You can benefit from Nextance Contract Performance Management by improving the standardization, visibility and control of your contracts. Tools and technologies: Java/C# Oracle/AG Tamino XML Server/IBM DB2 XML/XSLT/CSS/JS Role: GUI modifications; Busines 06.2006 - 10.2007 Artemis 7 Trilogy. inc Artemis 7 is a web-based investment portfolio management system that supports organizations that wish to implement a top-down management process to optimize the selection and execution of investments. Tools and technologies: Java/AWT, Oracle, Abbot,JUnit Role: GUI modifications; performance tests automation Skills: Programming Languages/ Technologies: * Java,C#,C++,JavaScript,PHP,SQL, XML,XSLT, HTML,CSS RDBMS: * Microsoft SQL Server * Oracle * PosrgreSQL * MySQL Frameworks: * Spring * Hibernate * Struts * JUnit Development Tools: * Eclipse * MyEclipse IDE * NetBeans IDE * IntelliJ IDEA * Tortoise SVN * JProfiler * Firebug * Apache Ant * FindBugs, CheckStyle, Coverage, MI, PMD code quality metrics * Visual Basic Script debugger

    $25.00 /hr
    1,586 hours
    5.00
  9. 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
  10. Dorin M.

    Dorin M.

    System Engineer, Jasper/BIRT Reports Developer

    Romania - Last active: 19 days ago - Tests: 2 - Portfolio: 1

    System Engineer with experience on BI and reporting using Jasper Reports, BIRT for a wide range of business critical software applications: ERP, WMS, TMS, LMS, DMS. Experience in following areas and technologies: SQL, Linux, Windows Server, PHP, Java, MySQL, Oracle Database, Apache Tomcat, Jasper Server, BIRT.

    $20.00 /hr
    335 hours
    4.84