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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. Ganga M.

    Expert Java/J2EE/Grails/Atlassian/Composite Developer

    India

    • Certified SCJP,SCWCD Developer • Has 9 years of experience in Java/J2EE/Groovy/Grails software Design, Development.Worked extensively on Altassian products (Jira, Confluence, Bamboo and fisheye/Crucible) Developing and Enhancing Altassian Product plugins. • Worked In major JIRA, confluence, fisheye and bamboo upgrades • Have Good knowledge on Agile Software Development life cycle and Tools (JIRA) involved in this. (Certified Scrum master) • Working in Sonar and its plugins to integrate to different applications( java, PHP etc., ) • Good Working Knowledge in Composite ETL tool. • Good Working knowledge in TDD, application release and deployment cycles. • Good working Knowledge in Nexus Repository Management. • Developed/enhanced 20-30 altassian products plugins. • Good working knowledge in OSGI based applications.

    $15.00 /hr
    49 hours
    0.00
  2. Alex Liffick

    LAMP Administration and Development

    United States

    With over 13 years of experience, I have worked in various Systems Administration as well as Development roles on Windows, Linux, and Unix environments for Enterprise Corporations and startup project companies. In the last 5 of those years, my focus has shifted more towards Database Development and even some Application Development. My strengths are in the following areas: SQL (including Oracle's PL/SQL and Microsoft's T-SQL), Perl, Linux/Unix shell scripting, Java, and general Systems Administration.

    $24.44 /hr
    53 hours
    0.00
  3. Cameron Meade

    Skilled Developer

    Germany

    Hi I am a software engineer with 3 years of experience. I've developed hard and scalable programs for many organizations. I have successfully developed various solutions using Java. Can't wait to start working on your project.

    $33.33 /hr
    24 hours
    0.00
  4. Ezekiel Baniaga

    Ezekiel Baniaga

    Ezekiel Baniaga - Software Developer

    Philippines - Tests: 4 - Portfolio: 3

    With 5 years experience in various areas of Software Development. Concentrated on different open source technologies to provide clients with a low cost but high quality end results. Below are my mastered technologies and platforms: Enterprise: Java, NetBeans Platform, EJB, JPA, JAX-RS, Hibernate, JBoss Application Server, Apache HTTP Server, Tomcat, Jetty Reporting: JasperReports using iReport. Database: PostgreSQL, MySQL, Sybase, JavaDB, HSQL Software bug-tracking and management tools: Subversion, CVS, Trac, Kenai

    $13.33 /hr
    3,898 hours
    4.94
  5. Krastyo K.

    Krastyo K.

    Java/SQL/C++/C# Developer

    Bulgaria - Tests: 2

    I have more than 15 years experience of Web and Desktop programming, using variety of technologies - web programming using Java or ASP.NET, JQuery, Ajax, HTML, CSS; SQL databases; different tools, services and applications with C++/C#. During my work carrier I have been involved in many projects, focused in various fields of interests - database driven web sites and applications, Windows desktop applications, CAD/CAM systems, MS-Office automation applications, device control systems, large database support applications.

    $20.00 /hr
    1,386 hours
    5.00
  6. Lei L.

    Lei L.

    Experienced J2EE/.Net, Delphi Developer,Oracle Fusion Middleware

    China - Tests: 8 - Portfolio: 9

    Over the last 10 years, I have developed many enterprise level business applications using Html, Flex, J2EE, Resin/Tomcat, IBM WebSphere/Bea Weblogic, Oracle/MySQL for medium/large companies and medium businesses in Oil & Gas industry.My main customers are PetroChina,Sinopec,Haier. (NOTE:These experiences are not included in my "Portfolio" section, Because they are deployed in enterprise's internal environment and invisible to public) My personal interests are making desktop application using C#,Delphi,VB.I have developed many productions, Some of them can be found in my "Portfolio" section. I also provide English to Chinese translation services and Software/Website localization services. As a professional person, Supply best services to employer is my duty, And customer satisfaction is my eternal pursue.And i also believe "Cooperative Relationship" will better than "Employment Relation". "Good communication is the foundation of a successful project".

    $35.00 /hr
    246 hours
    5.00
  7. Muhammad Imran Afzal

    Muhammad Imran Afzal

    C/C++ Developer,Device Driver,Kernel modules and Bash scripting Expert

    Pakistan - Tests: 4 - Portfolio: 1

    I have 6 years of experience in Linux development and administration. Device Drivers, Kernel Porting, Kernel Modules, Development in networking protocols, gcc/g++ and Python are my expertise. I have strong knowledge in Linux internals including kernel specifics and system calls. I have work experience with mips64 based Cavium's OCTEON multicore netwrok processors. I have worked on network protocol offloading in this. I have the ability TO DO.

    $22.22 /hr
    13 hours
    5.00
  8. Ralph Swartwood

    Ralph Swartwood

    Certified WebSphere Administrator

    United States - 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
  9. Ouadie LAHDIOUI

    Ouadie LAHDIOUI

    Java/JEE Technical Expert

    Morocco - Tests: 1 - Portfolio: 5

    My web site : http://ouadie.tk/ - Technical expert with 6 yrs. of experience in Java/J2EE skills - Hands on experience in JSF, Spring, Hibernate - Expertise in Web service - Experience of having developed complex web applications with stringent Non-functional requirements - Good to have know-how of EAI tools and concepts - Strong knowledge on banking domain - Knowledge on Consumer Lending / Auto finance - good to have - Good communication skills

    $20.00 /hr
    22 hours
    5.00