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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. Vivek Viswanathan

    Vivek Viswanathan

    Expert Web App Developer & Manager

    India - Last active: 17 days ago - Tests: 6 - Portfolio: 3

    Over the last 8 years, I have developed a wide range of scalable & responsive websites on the cloud. My core competency lies in complete end-to-end management of the Project, and I am seeking opportunities to build websites from the ground up for you and your business. As part of my experience, I've worked for different companies and for various projects, from small startups to large corporations, from small device-oriented applications to multi-layer, cross-platform software. With a strong background in Agile development methodologies, I've worked with remote teams and clients from all over the world. I'm fluent in using the below programming languages/frameworks: Front-end: HMTL5, Flex, jQuery, jQuery-Mobile, BootStrap, Foundation, Canvas Libraries Back-end: Java, Spring, Struts, iBatis, BlazeDS, Php, Magento Mobile App: Phonegap Database: MySQL & MS-SQL Scripting: Perl, VB Script Other Expertise: Optimizing SQL query & web pages for performance, VB Macro I enjoy new challenges, looking to overcome my own high standard goals.

    $30.00 /hr
    911 hours
    5.00
  2. Ralph Swartwood

    Ralph Swartwood

    Certified WebSphere Administrator

    United States - Last active: 6 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
  3. Mykola Velykyi

    Mykola Velykyi

    Java Desktop Developer

    Ukraine - Last active: 3 days ago - Tests: 7

    Over the last 1 year, I have developed one project based on web server using HTML, SQL, CSS, javascript in my work. Over the last 4 years, I have developed many desktop programs using Java, C#, Python, C++ and programm style OOP in my study. When I create the application, my work consists of 4 stages: design, code, test and write documentation. I also have some experience in using XML. I am good in Mathematics. Mathematics is my hobby. I participated in mathematics competitions in many years and I took the leading places. I know and understand different algorithms. Also, I have a mathematical mind. I know parallel programming.

    $10.00 /hr
    15 hours
    4.97
  4. Denis Kuzmenok

    Denis Kuzmenok

    Perl Developer

    Ukraine - Last active: 1 month ago - Tests: 8 - Portfolio: 2

    Experienced in building e-commerce projects (online shops, price comparison systems). Latest projects: 1) Online shops, all backend, frontend programming. Used technologies: Perl, mod_perl, FCGI, TT, HTML::Template, memcached, MySQL, etc. 2) Price comparison system ava.ua (pricegrabber.com/shopping.com close analog). All backend, frontend programming, database administration. Used technologies: Perl, mod_perl, PLP Plack/PSGI, FCGI, HTML::CTPP2, etc. Mysql (Partitioning, Replication, Triggers, Procedures, Queries optimization).

    $22.22 /hr
    1,491 hours
    5.00
  5. Juan Carlos Contreras Ontiveros

    Juan Carlos Contreras Ontiveros

    Web Development & Software Development

    Venezuela - Last active: 1 month ago - Tests: 5

    I have developed a certain amount of websites using HMTL, PHP, AJAX, PostgresSQL, MySQL, Joomla and Engine Templates like "TinyButStrong". Plus, I have been developing among my jobs, diferent king of desktop software, in c++, java, batch. I also have good experience in SQL database management, software design and testing.

    $11.11 /hr
    239 hours
    5.00
  6. RJ Ali

    RJ Ali

    J2EE/Spring/Hibernate/JSF/Mule ESB/Struts2/SAAS/AngularJS/REST/SOAP

    Pakistan - Last active: 12 hours ago - Tests: 2 - Portfolio: 4

    I am having more than 8 years experience in developing web based enterprise solutions using technologies like Java, J2EE, Struts, JSF, Spring, Hibernate, Rich Faces, Prime Faces, GWT, Smart GWT. Further Android, JBPM, Performance Tuning, Query Optimization, Code Profiling, Memory Leaks and Team management. I have experience in SaaS applications and integration technologies like web services(jax-ws,jax-rs), JMS (Jboss Hornet Queue, Active MQ), Amazone AWS, Sales Force and Enterprise Service Bus (ESB) specially Mule ESB, Apache Camal, Service Mix and WS02 ESB. I have been working on web based solutions since 2005 so I have experienced the evolution of web technologies starting from web 1.0, then ajaxifying web apps and then single page Rich Internet applications using GWT, Smart GWT, Angular JS, Html5, Css3, D3, JQuery, Ext JS etc. With this much experience in web technologies I can even work as Front End Developer and I have already DONE few jobs as front end developer. What kind of work I prefer to work is the long term nature and hourly jobs. I prefer to establish long term reliable and trust worthy relations.

    $33.33 /hr
    2,620 hours
    4.90
  7. Daniel Z.

    Daniel Z.

    Highly skilled API integrator, PHP (ZF) Coder and Project Manager

    Poland - Last active: 12 hours ago - Tests: 7 - Portfolio: 6

    Goal: Project and develop high quality apps for your success. Profile: OOPHP & Zend coding, IT consulting and business analyst, project coordinator and manager, Other skills: Apache, Bind, SSH, bashscripting, Memcached, Github, Solaris, Oracle, MySQL, Radius, AD, expert knowlegde of many *ux and windows systems Advantage: Project and implementation of many web apps. Most of it projected and developed by myself using Zend Framework, Google API (youtube, gdata), social API (twitter, facebook). Some of it integrated with operating systems or AAA software (radius, ldap). Usually Design Patterns were used (like Template Method, Version of Control, DAO, Dependency Injection, Decorator and so on). Some application built upon a structure of web services (XML, REST, JSON), some using jQuery and AJAX. Tools and technologies: Apache, radius, bind, ldap, Zend Framework, XML, SOAP, Linux, Linux daemons, Memcached, Sockets, REST, JSON, Oracle, MSSQL, MySQL, Design patterns, MVC, SVN, BASH, PHPUnit, Xdebug, Unit testing, Google Youtube API, Google Gdata API, Google Maps API, Facebook API, PayU API

    $35.00 /hr
    1,769 hours
    4.98
  8. Prasetyantoro R.

    Prasetyantoro R.

    Odsek freelancer

    Indonesia - Last active: 1 month ago - Tests: 4 - Portfolio: 1

    my objective is to show that i can complete all the job given to me as fast as posible. with your satisfaction become my first priority. my speciality is at linux server configuration, php, html,css,javascript (vanilla / jquery), java, ruby on rails, mikrotik router, bash scripting . basicly im still college but i've got some freelance work in my country as server administrator gaming server for about 2 years and hotspot internet service with mikrotik router and ubnt device as access point.

    $9.00 /hr
    1 hours
    4.78
  9. Sagar V.

    Sagar V.

    5 years of experience in Java, J2EE, Spring, Hibernate, Maven

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

    I have developed small scale to mid scale enterprise applications using Java, JSP, Servlets, JDBC, Spring, Hibernate and Maven I have worked on all the phases of SDLC, starting from requirement gathering to maintenance of the project. I have experience in various domains like E-Commerce, Real Estate, Small Scale ERPs, Online education and Revenue Management. I always consider giving highest satisfaction to the client and also provide solution in budget and timely manner.

    Groups: Oracle Certified Professionals

    $10.00 /hr
    1 hours
    5.00
  10. Amelia Pessoa

    Amelia Pessoa

    Software Engineer and Pentaho Developer

    Brazil - Last active: 21 days ago - Tests: 1 - Portfolio: 1

    Oracle Certificated Java Programmer; Microsoft Technology Associate - Database Administration Fundamentals; and Microsoft Student Partner. * BI solutions using Pentaho ETL, CDE/CDF/Ctools & Reports.; * Creations Web Site and application development with Java (JSP, EL, Servlets, JSTL, JSF, Primefaces), PHP, Ajax, CSS, JavaScript (and jQuery); * CMS's: Joomla and Wordpress; * Mobile: Android e PhoneGap; * Data Bases SQL Server, H2, Oracle, Postgrees and MySQL (Development, Creating and Maintaining Stored Procedures, Triggers, Reports).

    $27.78 /hr
    0 hours
    5.00