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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, 406 Java projects are completed every quarter on Upwork.


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 4.73.

Last updated: October 1, 2015
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Gofur H.

Gofur H. Agency Contractor

pro*C/C++, plsql, CSS, PHP, flex, AS3, Oracle, Ajax, OOP, C#, .NET

Czech Republic - Tests: 12 - Portfolio: 5

Over the last 10 years, I have developed a wide range of websites using HMTL,DHTML,CSS, PHP, flex, actionscript including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. I also have solid skills in the following areas: MySQL, PostgreSQL, Oracle, Plsql, Interbase Pascal/Delphi, JDK 4,5 and 6JEE 5, c/c++, Pro*c, Web Services SQL, Ajax, OOP, and software design and testing.

Associated with: Wise solutions

100% Job Success
$38.89 /hr
1,456 hours

Masoom Raza

Masoom Raza

Software Engineer, Java/J2EE Developer

India - Tests: 3 - Portfolio: 3

• 7 years of experience in Analysis, Design, Development and Maintenance of various J2EE applications. • Extensive knowledge of Core Java. • Dynamic Software Engineer and Team Member with rich, cross-functional exposure to the entire spectrum of SDLC functions for diverse range of processes, products / services. • Worked on Struts, Hibernate, iBatis, Spring, Zend, CodeIgniter, Ruby on Rails framework. • Worked in design pattern, OOAD, data modeling, development and integration. • Experience in Integration of various data sources like Oracle, PostGre SQL Server, SQL Server, Flat Files. • An effective communicator with exceptional relationship management skills with the ability to relate working with customers, projects managers and technical teams. • Highly motivated, quick learner, positive and goal-oriented, with demonstrated professionalism, attention to detail as well as the ability to be a good team member and able to lead a team. • Expert in in opensource chat system setup for an organization.

100% Job Success
$16.67 /hr
269 hours

Andres Vergara

Andres Vergara

Software Engineer + Expert Developer [English-Spanish]

Colombia - Tests: 6 - Portfolio: 14

I'm software engineer/developer. I have around 5 years of experience in the area, managing IT projects and developing a wide range and variety of applications, including: web portals, information systems and other custom solutions as scripts & templates. In this way I have worked with a variety of technologies & platforms at the back, middle and front end such as: Java, JEE, Spring, PHP, Zend Framework, CSS, HTML, JavaScript, JQuery, Ajax, Flash + Action Script SQL, PLSQL, Oracle, MySQL, Postgres SQL, SQL Server. I also have experience developing for Moodle LMS and apps for Android devices & tablets. I am seeking to build opportunities for you and your business. Thanks & regards

$15.60 /hr
1,370 hours

Stefano Fratini

Stefano Fratini

Software Engineer / Java / PHP / Cloud / NoSQL / Cryptography

Australia - Tests: 6 - Portfolio: 8

I'm a software engineer based in Sydney I'm always after the simplest solution that deliver value to the business Areas of expertise - Web development (Java & Php) - Cloud computing (paas and saas) Google/AWS - API development - Security and Network Security - Mobile applications development (Android) with scalable Cloud Backends - NoSQL solutions - Mentoring and team management - Binary protocols (Hessian / Apache Thrift) Skills Programming languages: Php / Java Core / JEE / Android /Struts / Guice / Spring / Spring MVC, Hibernate / Google Application Engine / C/C++ Databases: MySql / MongoDB / Google Bigtable / Bigdata / CouchDB Interests: Cryptography / Secure API development Platforms: Windows / Linux (Ubuntu) / Linux ARM

$55.56 /hr
1,288 hours

John Clarke

John Clarke

Web, Desktop Applications and Database Developer

United States - Tests: 1 - Portfolio: 2

Over the past five years I have developed skills in HTML, PHP, MySQL VB, DotNetNuke, and C#. I have worked with both start-ups and established organizations. My strengths include a strong work ethic, versatility, and I am a quick learner. I have experience learning new languages and systems on the job. I am seeking opportunities to build applications or websites from the ground up or to join an existing team.

$40.00 /hr
1,697 hours

Janos D.

Janos D.

Java expert (web, desktop, mobile, server-side, cloud)

Hungary - Tests: 2

Although I am a new guy on oDesk I am an experienced freelancer, I have worked for years for big companies in Europe as a freelancer Java developer. I can help you: - planning, architecting and - building a new website for millions of users - organising and reviewing a team for you - and of course I can help you in development also #my-tags: Java, J2EE, Hibernate, Spring, Google App Engine, GWT, Javascript, Dart, Html5, Css3, Knockout, Angular, Polymer, Cloud, Android, C#, Azure Java: I have worked lots of years on the server side (Hibernate, Jpa, J2ee, Google App Engine, Spring, Sql, No-Sql) Web clients: I am experienced in a wide range of client technologies (GWT, Javascript, Knockout, Html5, Css, JQuery, Dart, Angular, Polymer) Mobile: I will build you Android apps in Java and hybrid apps in Html5 Mobile optimization: I can help you to (re)build a site to be responsive that will work on all the devices Desktop: I have created several desktop apps with Swing and I had a few projects with Windows Forms. Technologies not in my main focus, but worked with: C#, Azure, PHP, OpenCart, Liferay

$38.89 /hr
751 hours

Umar Mohammad

Umar Mohammad

Luminous- PHP, Java/J2EE, Webservices, SEO Professional

India - Tests: 4 - Portfolio: 10

Over the last 6 years, I have developed a wide range of applications&websites using PHP, Codeigniter, Wordpress, Drupal, Java, J2EE, Struts, Spring, Hibernate, Tapestry, JSF, AWT, Swing, HMTL, DHTML, and MySQL including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. I also have experience in the following areas: SOAP, Webservices, SQL, Ajax, OOP, and software design and testing.

Groups: Application Developers Alliance, AWeber...

100% Job Success
$13.33 /hr
3,720 hours

Gunjan D.

Gunjan D.

Expert Java (Spring 4.0),Neo4j,Angular.js,Rest,AWS

India - Tests: 2 - Portfolio: 13

10+ years of experience in Java based Software Development and Design. Highlight about my profile - quality of the work - Java Spring 4.0 Rest, Jersey , CXF (Rest API) - Spring 4.0 boot - Angular.js - ANNE stack (Anguler.js, Node.js, Neo4j, Express.js) - Multiple Neo4j and Rest API project - Customized Neo4j Rest API and Data Import code using csv file - (Neo4j CMS) - Jenkins configuration administrator - SonarQube Installation, administrator and user - svn setup - Jira administrator - JBOSS ESB - Eclipse STS 3.6.3 Service Description Java Skills Skills in Java, J2EE, Spring 3.0 ,Hibernate 3.0 , Struts,Web Services,JAXB,Castor ,JSON , Jquery SOA : Oracle ESB 10 g , Mule ESB , Jboss ESB,Spring Integration , Apache camel Server : Tomcat 7.0, weblogic 10.3 and JBoss 5.0 server. Experience in Maven 3.0 and Ant1.7,ivy Building script. XML, XSL,XSD and XSLT Web Services Experience in Web Services creation using Apache Axis. RESTful and Web API Service (CXF) with Spring 3.0 SOAP Client using Spring 3.0 Web Service Template Neo4J Neo4J 2.0.0-M06 Cypher RestFul API for Neo4J Neo4J Spring Customized Neo4j Rest API and Data Import code using csv file CXF RestFul Api + Spring 3.0 + Neo4J Neoclipse Gephi neo4j spatial data Reco4j Sigma.js Integration with Neo4j through Rest API Talend ETL Neo4j Plugin Neo4j with AWS and heroku Environment Data Import from CSV to Neo4j OSM Cloud Computing AWS EC2 , Mashery (API Management Infrastructure ) JUnit Junit 4.0 , TestNG ,Power Mockito, Mockito , Coverage Code Analyzer Code Analyzer : Code Pro and PMD Android Studio , SQLite , Rest API with Android , Rest API call from Android for Neo4j. Methodology Scrum master Agile Methodology Designing Experience UML 2.0 (Class Diagram , Sequence Diagram ) Design Pattern View Helper,Service,Business Delegate,Facade,DAO DataBase Experience Mysql 5.0 ,PostgreSQL 1.12.1 Environment Linux (CentOS and Fedora 14.0) and Windows. Tools Eclipse , NetBeans ,Jenkins , Mysql Workbench,soapUI,Team Track, OTRS, Bugzilla,CVS,SVN and GIT with Eclipse STS,Putty,Jira,Google CodePro Social Network and Google Related Experience Spring Social for Google Drive and Google Plus Google Application Engine, Google SDK 1.7.7 Freelancing freelance for multiple countries like USA , UK ,Europe and Africa .

99% Job Success
$30.00 /hr
1,483 hours

Karsten Priegnitz

Karsten Priegnitz

Java, Linux, PHP, Android, SQL Expert and Translator

Germany - Tests: 5

I'm a highly skilled Java developer. I'm also excellent in Javascript, Linux administration and scripting, Database / SQL programming, Android development and HTML, JSP, AJAX, PHP and perl. I studied informatics in Germany and Spain and worked for 11 years in a state owned bank in Lower Saxony as a software engineer and project leader. I finished both with outstanding appraisals. My second biggest interest is the English language. I studied English in school as one of my favourite subjects (besides math). I can translate from English to German quickly and communicate in English fluently.

100% Job Success
$50.00 /hr
463 hours