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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, 447 Java projects are completed every quarter on Upwork.

447

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.

4.73
Last updated: September 1, 2015
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  1. Thomas T.

    Java & Amazon MWS Specialist

    United Kingdom

    Java Server developer with broad Java experience and exposure to a variety of other technologies. Started own online retail business immediately after graduatiing in 2005, developing our entire e-commerce website and backoffice by myself, and have gained a range of other skills, for example in UK taxation and legal matters, as well as customer and general business management. I have a penchant for trying to solve problems and optimising for efficiency and ease of use. Specialities: Amazon MWS and related APIs (e.g. Amazon Merchant and FBA fulfillment data, stock synchronisation, prices, inventory control) Technical: Java development with Eclipse, technologies including Spring Framework, JSF/facelets, Hibernate, XML/SOAP, Ant, Maven. I can also help with: (X)HTML + CSS, JavaScript, website optimisation, SQL, basic Linux admin, limited PHP, Google Analytics, Wordpress. Fully fluent in both English and German.

    $38.00 /hr
    38 hours
    5.00
  2. Anton Kharuzhyi

    Java Web / Desktop Developer

    Belarus - Tests: 4

    I have worked with various Java technologies for over 5 years, with 1 year of professional experience.

    $11.11 /hr
    1,396 hours
    0.00
  3. devashish mamgain

    devashish mamgain Agency Contractor

    Java, Spring, Hibernate, GAE, Android, jQuery

    India - Tests: 4 - Portfolio: 1

    I have developed a wide range of mobile apps and web development including working as a free lancer for J2EE projects, working on server side development at Xora, Inc using Java, Spring, Hibernate for location based applications. Developed both server side and android app for MobiTexter and RapidNotifer https://play.google.com/store/apps/details?id=net.mobitexter and RapidNotifier: https://play.google.com/store/apps/details?id=com.rapidnotifier Experience in Java, J2EE, Spring, Hibernate, Google App Engine, Google Maps, jQuery, Android, Twitter Bootstrap, MySQL, BigTable, Oracle

    Associated with: The Next Pointer, MOBITEXTER TECHNOLOGIES PRIVATE LIMITED, Client First Inc. Agency

    $18.00 /hr
    138 hours
    4.98
  4. Adrian B.

    Senior Java | J2EE | Scala | Large scale apps

    Romania - Tests: 2 - Portfolio: 6

    As a java web developer with over 9 years of experience, I have been involved in all aspects of the software life-cycle, from analysis, design, development and testing, to installation and deployment of web applications.I have extensive knowledge of Java, J2EE, SQL and unit testing.

    Groups: Application Developers Alliance

    $22.22 /hr
    325 hours
    4.35
  5. 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
  6. Van Wilson

    Van Wilson

    BIG DATA, BI Analytics, DBA, ERP, Tableau, Java, Datawarehouse

    United States - Portfolio: 1

    Being a Programmer for over 15 years I have worked with many GUI, Websites, dotcoms, ERPs and languages. I also have a BA and graduate classes towards MBA at Pepperdine. I am Microsoft Certified Trainer and DBA for MS SQL, MSSAS, NAV and SAGE Certified for SAGE 300. I recently created 5,840 tableau reports and automated the xml, server, and desktop of tableau. The report data came from a data warehouse that I created using ETL, indexes, views, cubes, agents, automation, and performance tuning for. I have programmed to SAGE 100,200,300, MS NAV, Peoplesoft, Xtuple, Oracle, Quickbooks Enterprise. I have made datawarehouse indexes, tables, views, cubes and been DBA for Oracle, SQL Server, Mysql, PostgreSQL. I program in VB, PHP, .NET, ASP.net, Java, D3, jscript, Jasper, To view my full profile, email me for at vfw4444@gmail.com.

    $29.44 /hr
    74 hours
    4.00
  7. Swoyambhu Shrestha

    Swoyambhu Shrestha

    Experienced Java Developer, specialized in Elasticsearch and Hadoop

    Nepal - Tests: 5 - Portfolio: 3

    I am passionate about big data technologies. Software Engineer at Deerwalk Inc. I have been working with US healthcare data for about two years using big data technologies like Cascading, Hadoop and Elasticsearch. Projects: HEDIS 2014/15 Development and Certification Quality Reporter: Quality Reporter provides full clinical data analysis on the HEDIS certified measures Plan Analytics: Plan Analytics is an innovative software solution designed to work in the real world of healthcare management. Distributed Approach of Analysing and Visualizing Census Data: The main theme of this project was the implementation of the distributed computing for the large data-sets. View my LinkedIn Profile: http://www.linkedin.com/pub/swoyambhu-shrestha/67/487/121

    $11.11 /hr
    151 hours
    0.00
  8. Dimple J.

    Dimple J. Agency Contractor

    Java,GWT,J2EE,Android,HTML5,GAE,SenchaTouch Web Programmer

    India - Tests: 2 - Portfolio: 2

    I have worked on a number of programming projects over the last 4 years ranging from full website development to small programming jobs like building independent widgets in GWT, modifying the design of websites, finding quicker ways to load the sites. I am always willing to learn technology in faster manner. I am also well in terms with CSS, OOPS, testing, GIT, SubVersioning tools and few more.

    Associated with: Webashlar-J

    $16.67 /hr
    368 hours
    0.00
  9. Pankaj T.

    SpringSource and SCEA level 1 certified Java Developer

    India - Tests: 4

    I am SpringSource Certified Spring framework (3.0) professional. Recently I also cleared Oracle Certified Master Java Enterprise Architect (formerly SCEA) level 1 exam I have exposure to various frameworks like Hibernate, JPA, Ibatis, EJB, Struts, Webwork, JSF, Spring etc. I have good understanding of Design patterns and advantages of good Object Oriented code. I have exposure to application servers like WebSphere and WebLogic as well tomcat Servlet container. Also i have brief overview of Integration patterns and Mule framework. I have exposure to TDD and Agile methodology. I am looking for opportunity to work on project involving Java technology (preferably Spring and/or Hibernate).

    $16.67 /hr
    6 hours
    0.00