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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. Sagar V.

    Sagar V.

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

    India - Last active: 20 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
  2. Alexander C.

    Alexander C.

    Scala / Java / Haskell developer, Full Stack Engineer, Consultant

    Russia - Last active: 05/31/2014 - Tests: 2 - Portfolio: 2

    Java developer with 8 years of experience. Now also Groovy(2 years) and Scala(1.5 years) developer. Java: Hadoop, Nutch , Lucene/SOLR/ElasticSearch, Morphia(MongoDB ORM), parsers/crawlers(using Apache Httpclient, HtmlUnit and own microframework), Web MVC(Struts 1.x/Grails), Java Desktop Applicatins(Swing) / Applets, webservices (w. Restlet framework), RabbitMQ Java client, Riak Java Client Scala: PlayFramework 2.x, Lift, Akka, ReactiveMongo Groovy: Groovy scripts / Gant build scripts / Gradle Databases: SQL(PostgreSQL/MySQL), MongoDB, Riak, SOLR/ElasticSearch PHP scripts, linux(fedora/centos/ubuntu) server administration, SVN / Git, SEO methods/scripts, affiliate marketing. Check my blog(chepurnoy.org)/GitHub(kushti) also.

    $60.00 /hr
    1,026 hours
    4.99
  3. Wassim Salib

    Wassim Salib

    Experienced Asp, Silverlight web designer, and Database developer

    Egypt - Last active: 06/01/2012 - Tests: 14 - Portfolio: 1

    during my work, I have developed a wide range of websites using HMTL, DHTML, ASP.NET, Silverlight, JQuerry and MySQL including sites for emerging companies and multinational businesses. I am seeking opportunities to build and design websites and specially Silverlight components. I also have some experience in the following areas: SQL, Oracle, Ajax, OOP, Security and software design and testing. Experience with amazon cloud environment

    $38.89 /hr
    409 hours
    4.74
  4. Saeed ahmed D.

    Saeed ahmed D.

    An Expert C++, Java, SQL, Unix Developer

    India - Last active: 13 days ago - Tests: 2

    To become an expert in cutting edge technologies by means of imparting and implementing them. An experienced Freelance Online Or On-site Developer which is quick learner looking For: 1> Application Designing, Developing, Code Review Jobs. 2> Tier-2, Tier-3 Support for Debugging and Maintaining of any C++, C#, Java, Unix based applications, could be any Products or Projects.

    $44.44 /hr
    0 hours
    0.00
  5. Vitaly Tuev

    Vitaly Tuev

    Project manager

    Russia - Last active: 23 days ago - Tests: 8

    I have over seven years of business experience managing business integration projects. I managed the different complex projects for world-famous companies, like Wrigley's, Ford, Kraft Foods and Heinz. My core competency lies in managing projects with ERP systems integration, customer customization and software development. I also have good experience in the following areas: Java EE Databases (MySQL, PostgreSQL, SQlite) BPMN (Apache Activity) ECM systems XML,Web-services, Continious integration Full resume http://tuev.pro/me/

    $16.67 /hr
    0 hours
    0.00
  6. Stephen S.

    Stephen S.

    Business Analyst and Project Manager

    United States - Last active: 1 month ago - Tests: 2 - Portfolio: 3

    Linked in Profile ssalaka 15+ years of varied industry experience (including extensive consultation work with large cap and fortune 500 organizations) in both software development and systems engineering as well as overall project management and client development/consulting; significant experience with Linux and Windows (mixed) environments and programming experience (including C#, JAVA, C/C++, shell scripting, and SQL), an MBA in Information Technology, and a solid understanding of complete systems lifecycle development/deployment/and support with a solid focus on applying process optimization strategies (Lean, TQM, 6 Sigma, etc...) My overall career path has been extremely varied, covering a wide range of tasks, duties and responsibilities (in an extensive breadth of industries) The main focus has been working in a (C#/JAVA/MSSQL) development;(Windows/Linux) deployment environment, designing and developing application/systems architecture for large scale portal (clustered and virtualized) applications, managing both development and server teams, designing and implementing systems security components, and deploying and managing network/infrastructure resources. Additional responsibilities have included client development/consulting, the integration of developed solutions into client project deployments, offshore team coordination, following development best practices to produce tested, integrated and fully-documented software solutions for Linux and Windows platforms (including Windows Mobile), and large scale systems roll out and deployments using both clustered (both hardware and software based) and virtualized (VMware) technologies. Business Level Japanese, JLPT Level 2 Conversational Spanish/German Specialties: Project Management, Software Development, Software Architecture, Systems Engineering/Architecture, Network Engineering, Programming, Troubleshooting/Maintenance, System Security, Software Architect, JPLT 2kyuu, DBA, MCTS, MCPD, MCSE 2003, SCJD 1.6, Security+, Lean Agent Certification, PMP, Six Sigma Black Belt Process Optimization

    $125.00 /hr
    0 hours
    0.00
  7. Robert C.

    Robert C.

    TIBCO Consultant & E-Commerce Architect

    United States - Last active: 1 month ago - Tests: 2 - Portfolio: 2

    Good Day and thank you for taking a moment to read my profile! I started working in IT about four years ago as a technical support representative for Simple Helix, a Magento specialist web hosting company. From there, I had the opportunity to spend a year as a Network Analyst for a local, carrier class, ISP before moving on to a position as a Linux Systems Engineer with a Magento development firm. In the present, I work as an Applications Engineer with a focus on the TIBCO stack, most notably AMX, BusinessWorks, EMS, and SilverFabric. I have a very strong background in Linux/Unix administration and have worked extensively with CentOS, Red Hat, and Debian. I've worked with networks from a physical perspective, as a NOC Technican, as well as logical perspective troubleshooting complex application issues. Over the past few months I've taken the opportunity to learn to code in Java and I've recently attended Red Hat training for JBoss EAP 6. I'm a CPTE (Certified Penetration Testing Engineer) and would happily pursue projects as an E-Commerce Architect, Systems Engineer, TIBCO Engineer, JBoss Administrator, entry-level Programmer, or entry-level Ethical Hacker. I am available for new jobs immediately outside of US business hours.

    $33.33 /hr
    474 hours
    4.86
  8. Robert Joseph Batac

    Robert Joseph Batac

    Java Developer/Project Management/Applications/Wordpress

    Philippines - Last active: 1 day ago - Tests: 5 - Portfolio: 1

    I specialize in Java Application Software Development, Project Management, and Hardware Interfacing. Other areas I've been involved in are Web Design, Wordpress, VPN, CMS, Open Source Solution/Customization and Testing for both Manual and Automated, and I recently added Android App Development in my portfolio. I have endeavored in freelance, business, and team and enterprise solution projects. Primary technologies I use are Java SE, Swing, Webstart, NetBeans, PostgreSQL, third party APIs, OpenVPN, Mysql, Selenium and Android Studio. Other experiences I've had are in the line of CCTV Surveillance and Security Systems integration. Please visit my profile website for past projects I have been involved with. http://bertbatac.weebly.com/ Thanks, Bert Batac

    $20.00 /hr
    1,031 hours
    4.95
  9. Yavor I.

    Yavor I. Agency Contractor

    Android/Wear/Tizen/Backend developer

    Bulgaria - Last active: 14 hours ago - Tests: 2 - Portfolio: 17

    Over the last 5 years I have developed a wide range of applications for Android based smartphones and tablets. Most of my clients are companies from the small business but also I've worked for Samsung, Shutterstock and British Telecom. I'm seeking opportunities to build applications from the ground up for you or your business. I have strong experience in these areas : Java, Android, Google App Engine, Backend and API development, Google Cloud Datastore, Tizen SDK, Database (Oracle, MySql and Sqlite), Ruby and HTML5/CSS3. I'm mainly interested in mobile apps development but I'm able to handle cross-client development including backend/API and web application. Example 1) Android app + Google App Engine(Backend) + Google Cloud Endpoints(API) Example 2) Example 1 + Google Cloud Messaging Example 3) Example 2 + Google Cloud Datastore Example 4) Example 1 or Example 2 or Example 3 + Web app (html/css/javascript) Example 5) Any of the examples above + Wear/Tizen app Example 6) Any of the examples above + UI An UI can be provided by one of the few very skilled designer I'm working with. It will be Android compatible by using the Material Design principles. * Please, only serious clients with vision for great, long-term projects! Not interested in part-time jobs. Strong communication is required!

    Associated with: Dision

    $32.22 /hr
    2,178 hours
    4.83