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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. Anvar Kiekbaev

    Anvar Kiekbaev

    Java Developer

    Russia - Last active: 5 months ago - Tests: 3

    Java developer with 3+ years experience. I have worked with Java SE 6/7/8 JDK and Java EE 6/7 stack. Frameworks and Technologies: Guice, Netty, Apache Thrift, Google Protobuf, Disruptor, Akka, Play 2; Spring 3/4 (DI, AOP, Security), Apache CXF, Apache ActiveMQ; backbone.js, jquery, bootstrap. I would really like to be a part of a complex high load project as a backend developer. I always willing to explore new areas of software development.

    $20.00 /hr
    58 hours
    5.00
  2. Ostap M.

    Ostap M. Agency Contractor

    Java Developer

    Ukraine - Last active: 12/22/2014 - Tests: 3 - Portfolio: 3

    I am Java Developer with more 3 years of experience. I have developed many projects using modern frameworks and able to learn new one quickly if needed. Before I worked as team member developing networking client-server application and some web projects using MVC frameworks or plain JSP/Servlets. Languages : Java, Python Technologies : JSP, Servlets, JDBC, Web Services, REST Databases : MySQL Frameworks/Libraries: Spring, Hibernate(JPA) , JUnit, JavaFx, Netty Design skills: OOP, Gof patterns, UML Software Development Methodology: Agile, XP, TDD Tools: Maven, SVN, Git, Jenkins IDE: Intellij Idea, NetBeans Other: HTML, JavaScript, jQuery, XML, JSON, JIRA

    Groups: Corona Labs

    Associated with: Progost

    $22.22 /hr
    189 hours
    4.15
  3. Roman Ivasyshyn

    Roman Ivasyshyn

    Java/Android

    Ukraine - Last active: 09/23/2013 - Tests: 2

    Solid expirience in Java, Android java sdk about 4 years covers technologies/experience: sqlite, REST, libGdx, networking, multithreading, android(widgets/services/live wallpapers), ZXing, Facebook Android API , Twitter, Google Map API, Google direction/geolocation/distance matrix/place autocomplete API Wp7/8 about 2 years covers technologies/experience: C#, silverlight toolkit for wp, push notifications Basic knowledge of Java Web/JSP/Servlets/EJB other expiriences MySQL, XML, JSON, REST, Apache, Tomcat, IIS, Linux, Windows, Eclipse, IntelliJ, Visual Studio, svn, git

    $16.67 /hr
    0 hours
    0.00
  4. Sergey Dubinin

    Sergey Dubinin

    Java-developer

    Russia - Last active: 6 months ago - Tests: 2

    Over 6 years I’ve been working in IT area. Worked with many international teams and remote offices, was in many international business trips. Over 5 years worked in telecom area - technical support and implementation of billing and charging systems for mobile operators. Have many successful projects as in technical specialist role and as in project manager role. Worked with highload realtime systems with millions of subscribers. Over 1 year have been working in web-technologies area. Last 3 years I’m keen on software development. Started with c++, now going with Java. Have skills with Oracle, PostgreSQL RDBMSs and SQL, PL/SQL scripts development. Java Core and Java EE, back-end web-development. Used to work with Spring framework, JUnit, Hibernate, MyBatis. Build software – is my passion.

    $12.00 /hr
    0 hours
    0.00
  5. Dmitry Kim

    Dmitry Kim

    Java developer

    Russia - Last active: 5 months ago - Tests: 2

    I've taken part in many different IT project during last 10 years. Mostly as a Java developer. I worked with almost entire java stack from J2SE, JNI, JNA and other low-level technologies to J2EE, Spring and Liferay portal including front-end development using JQuery and CSS. In addition i wrote some commercial code on Ruby and C#(asp.net), and a lot of university tasks on c/c++/pascal/foxpro/asm and so on. Last 2 years i was focused on developing web-portals for various local and state goverment structures. Software stack includes: tomcat, wildfly(and jboss), hibernate, Spring, Spring WS (soap and rest), Crypto Pro (Russia-specific e-signature), activity(bpmn), ... I got experience in multi-threading development, report generation, working with MS file formats via ApachePOI, experience in stress testing using JMeter utility and profiling of application using JProfiler. Also i got strong experience with writing SQL queries, using such DBs like MySQL, MSSQL, Oracle DB and PostgreSQl Despite my specialization over past years on server-side enterprise development i'm also very interested in developing some "smart-home" stuff or A.I. projects and i got some experience in these fields too.

    $15.00 /hr
    0 hours
    0.00
  6. Victor V.

    Victor V.

    Java developer

    Russia - Last active: 10/14/2014 - Tests: 2 - Portfolio: 1

    Name: Victor Country: Russia City: Moscow Region Job position: Remote job, Telecommuting job, Outsourcing. Design Skills: -UML all type of diagrams: use case diagrams, class diagrams, action diagrams and etc. -Patterns of Enterprise Application Architecture (Martin Fowler, Craig Larman etc). -GOF Design patterns. -J2EE Design patterns, Development skills: -Java, C/C++ professional knowledge, all aspects of the languages. Java more then 9+ years of professional experience. C/C++ more then 10+ years of professional experience. The Java language is used as main last time. -Perl, PHP, Website Design, HTML, Javascript, CGI: sufficient level for creating web application. -WEB CMS Bitrix full cycle development web applications. Development technology: -J2EE in implementation JBoss AS: EJB, MBean, Transaction Service, Message Service. -Hibernate. Databases Skills: - Oracle, Postgres, MySQL: full cycle from analysis business objects, design, development scheme to programming server side. Last 8 years Eclipse is main IDE for Java development technologies. Projects (Last big): 1) Medical Information Systems, 4-level information systems: DB 1-level, Hibernate 2-level, JBoss AS 3-level, Eclipse Application 4 -level. 2) Mobile Phone Billing System. 4-level information systems: DB, JBoss AS, WEB as UI. Code Version Control: SVN, GIT Platforms/OS: Windows*, UNIX*.

    $35.00 /hr
    0 hours
    0.00