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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. Ahmed Mostafa Mohamed

    Ahmed Mostafa Mohamed Agency Contractor

    Java | JEE | C/C++ | PHP | Python

    Egypt - Last active: 2 days ago - Tests: 8 - Portfolio: 2

    an expert java developer. got 2 java certifications 1Z0-803 and 1Z0-804 exams from Oracle. got SQL certification 1Z0-051 from Oracle. Top 30% in oDesk java v3 exam passed MySQL and ANSI SQL exams on oDesk passed D.S exam +2 years experience with java developing real life hard apps. accurate, fast, intelligent. Professional AR-EN-FR translator with 5-year Experience I have extensive experience in translating various content, including but not limited to: manuals, software, websites, documents, videos, articles, medical content, books, brochures, advertisements, legal documentation, technical content etc.

    Associated with: RockStar Java Developer

    $10.00 /hr
    170 hours
    4.96
  2. Parambir Singh

    Parambir Singh

    Experienced Developer- Java, Scala, HTML5, Javascript

    Australia - Last active: 06/22/2014 - Tests: 5 - Portfolio: 1

    Experienced full stack developer/technical architect (Java/Spring/Javascript/HTML5) with around 10 years of professional experience. # Server side development: Java, Scala, Spring, SQL # Big Data technologies - Hadoop, Hive, Spark, Shark # Solid understanding of OOP, object relational mapping, design patterns, data structures and algorithms # Packaging/versioning/automation tools: Maven, ant, git + git flow # Worked in an agile environment with product/service based companies (Adobe, IBM, Goldman Sachs, Royal Bank of Scotland) as well as start-ups (Clickable, Syncapse, Guavus). # Bachelor of Engineering degree from University of Delhi. # Sun Certified Java Programmer.

    $66.66 /hr
    19 hours
    4.90
  3. Ramchander rao A.

    Ramchander rao A.

    Oracle ADF/Fusion Applications/Java/J2EE/Webservices

    India - Last active: 2 months ago - Tests: 1

    Over 10 years of experience in IT industry, designed and developed various web application using ADF, Java, HTML, and J2EE technologies on Tomcat, Weblogic, Jboss etc. I am a senior Fusion Application developer and worked on most of the components in the ADF. Designed and developed ADF applications from the scratch. Worked on ADFbc Rest Webservices. Having good exposure in AJAX and Webservices.

    $11.11 /hr
    2,870 hours
    5.00
  4. Anton M.

    Anton M.

    Java/Android developer with QA experience

    Ukraine - Last active: 3 months ago - Tests: 3 - Portfolio: 1

    Over the past 6 years, worked with a number of startups and small businesses, first as a quality assurance engineer, and recently as a Java developer. I have tested websites, as well as desktop and mobile apps, all in an Agile environment. I have also developed desktop and Android apps, utilizing Java, Swing, SQL (MySQL and SQlite), JSON and REST. I am seeking an opportunity to build software from the ground for you and your business. I also have some experience in the following areas: — Android (4.x): Fragments API, Location and Sensors API, SQLite, UI, Services, Maps, admob, etc; — Java Core: Java Core, Multithreading, Collections API, etc; — Frameworks: Eclipse RCP, JUnit; — Core web: XML, JSON, HTML/CSS, JavaScript; — IDE: Eclipse; — OS: Linux, Windows, Mac OS X; — VCS: Git, Mercurial, SVN; — Bug/Issue trackers: Jira; — SQL; — UML. — Software localization (Russian-English and vice-versa);

    $8.00 /hr
    0 hours
    5.00
  5. Waqas Ali

    Waqas Ali Agency Contractor

    Senior Java / JEE / SOA / Android / PHP Developer

    Pakistan - Last active: 6 months ago - Tests: 14 - Portfolio: 12

    Since 2008, I have developed a wide range of web applications using JAVA, JEE, SOA, Web Services, Spring, Hibernate, EJB3, JPA, Struts, JSF, AJAX, jQuery and WEB2.0 standards, Servlets, JSP, CSS3, HMTL5, Liferay, OpenESB, IBM BPM, Several open source libraries and APIs, Facebook and Twitter Integrations, DHTML, LAMP, and MySQL, MSSQL, CouchDB, Oracle. I have experience integrating with third party APIs and Web Services, Social Networks, LDAP, SVN libraries. I have experience in Online Payment Solution, Banking, Mortgage, Text Search, Product Data and Catalogs, POS and other portfolios.

    Groups: Application Developers Alliance

    Associated with: Softified Business Solutions

    $30.00 /hr
    961 hours
    5.00
  6. A B M Mahbubor Rahman

    A B M Mahbubor Rahman

    Experience in Java, J2EE, PHP, Wordpress, SQL

    Bangladesh - Last active: 14 days ago - Tests: 2

    10 years of offshore professional software development experience. Extensive background in full life-cycle of software development process including analysis and design, coding, testing, debugging and maintenance. Proven track record of designing and implementing flexible solutions which support frequent UI and functionality changes. As a member of offshore team I have experience of overseas client communication as well as work with overseas team at the same time. Technical Skills: • Java/J2EE, Struts, Spring, JSF, Hibernate, EJB3, JUnit Testing, HTML5, CSS3, Bootstrap, PHP, CakePHP, Wordpress, Joomla, JavaScript, jQuery, ANT, REST, JSON, XML, SAX/DOM APIs, JAXB, Apache Lucene • Apache, Apache Tomcat, JBoss, IBM WebSphere • Oracle, PL/SQL, MySQL, PostgreSQL, JDBC • PayPal, Credit Card, iDEAL Payment Gateway • Windows, Linux (Fedora Core, Ubuntu)

    $22.22 /hr
    0 hours
    0.00
  7. Taka S.

    Taka S.

    java, php web developer, system administrator,linux

    Ukraine - Last active: 7 days ago - Tests: 5

    I have strong professional skill in network administration, on system build with linux servers. LAMP(Apache web server, MySQL ,PHP ), postfix, proftpd. Familiar with Xen, qemu/kvm virtualisation. Develop, create and support Web-available serrver & client side application for a desktop and android devices. CRM systems, CMS (Joomla! )modules & plugin develop, Full stack web Here are languages and systems which I have in my arsenal: Java, PHP, MySQL, XML, javascript, jQvery, bash IT Support Support for mobile users Remote support Problem management Remote access system over VPN. Audit corporate security

    $15.00 /hr
    0 hours
    0.00