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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. Shareena Rasheedammal Fasaludin

    Software Engineer Java J2EE SQL Oracle Hibernate

    India - Last active: 07/08/2013 - Tests: 7 - Portfolio: 1

    Strategic, Sun certified Java professional with 3 years of extensive experience in functional and technical implementation. To be associated with a progressive organization, aspiring to take up challenging assignments to build my career aspirations and to involve as a part of the team that dynamically works towards the growth of the organization. Other than Java technology I also have some experience in the following areas: SQL software design and testing.

    $10.00 /hr
    586 hours
    5.00
  2. Alexander C.

    Alexander C.

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

    Russia - Last active: 5 days ago - 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. Bruno F.

    Bruno F. Agency Contractor

    Information Technology Consultant, Odoo Expert

    Uruguay - Last active: 2 days ago - Tests: 4

    My objective is to help people understand what technology can do for them. The past year I've been deep diving both Odoo (v8) and openerp (v7), doing extensive customizations on the base modules (especially the accounting related modules), plus developing a custom tailored application with over 2000+ total programming hours, serving as the lead programmer and technical analyst. I'm a top of the line programmer, with varied experience, ranging from web programming, server infrastructure, enterprise workflows, ERPs and databases, up to openGL based games, scientific computing and machine learning. While I'm technically proficient, the main attribute that differentiates me from most programmers is that I dig deep when thinking about businesses, using my skills as leverage to help clients make more money. Drop me a line at bfigaresvillalba@gmail.com if you want to discuss a project.

    Associated with: TDT Consultants

    $100.00 /hr
    225 hours
    5.00
  4. Kari Hirvi

    Kari Hirvi

    C++/Qt/Matlab/Python developer with scientific background

    Finland - Last active: 15 days ago - Tests: 7

    I have years of experience with Matlab and I'm very productive with it, whether it's algorithm development, visualizing data or creating GUIs, for example. I'm also well versed in Python and I can provide a working software version quickly with rapid iterations with feedback from the client. I have also professional experience with C++, C# and Java, and I can bundle them into the project as needed. I have a PhD in physics and I've been working in different positions ranging from project manager and developer to customer service and helping sales. I can translate your problem into working code, and, if needed, refine the project requirements based on your business case. Below are few examples where you could gain tangible benefits from my experience - Matlab development of all kind, e.g., algorithms, GUIs, full applications - Data conversion and processing from one or multiple sources - Implementing algorithms based on scientific publications - Converting algorithms from another language to C++,C#,Java, Python or Matlab - Data analysis and visualization - Requirement analysis & management, e.g., reading texts and extracting measurable requirements from them with traceability to the source - Measure requirements quality by classifying them, e.g, is there an acceptance criteria, is this a system or user requirement, does the requirement have multiple requirements in it. - Creating and writing acceptance testing procedures with traceability to the project requirements I can work on both Windows and Linux platforms. Looking forward to working with you! Kari References: - LinkedIn: http://fi.linkedin.com/in/karihirvi - GitHub: https://github.com/karihirvi - Some older material in Google code https://code.google.com/a/eclipselabs.org/p/capua/

    $60.00 /hr
    0 hours
    0.00
  5. Herbert john E.

    Herbert john E.

    Java Programmer/Developer and Mathematics Instructor

    Philippines - Last active: 26 days ago - Tests: 3 - Portfolio: 3

    I am a mathematics teacher for four years teaching basic and advanced mathematics subjects. I had experienced teaching the following subjects (but not only limited to): algebra, advanced algebra, trigonometry, analytic geometry, mathematical finance, complex number analysis, calculus, differential equations, and discrete mathematics. In addition, I also have skill in Java Programming Language, MySQL, Java Server Pages, HTML, and CSS. I had accomplished several programming projects before such as payroll system, billing system, and monitoring system for a University

    $15.00 /hr
    0 hours
    4.60
  6. Saeed ahmed D.

    Saeed ahmed D.

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

    India - Last active: 22 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
    5.00
  7. Nalinda Sampath

    Nalinda Sampath

    Web ,Desktop & Mobile Based Java Specialist

    Sri Lanka - Last active: 3 months ago - Tests: 3 - Portfolio: 3

    I'm a certified J2EE & J2SE architect and interested in developing research based web & desktop applications. Through my work, I create customized business management web applications, integrated web-desktop applications. Now it has expanded my talents towards adobe technologies such as action script and flex, establishing a good partnership with a professional and experienced UI / UX engineer. Visit his graphicriver portfolio : http://graphicriver.net/user/anchor_point_heshan/portfolio So I'm glad to say that we now have the ability to develop complete applications with enhanced user experiences.

    $16.67 /hr
    2,020 hours
    4.86
  8. Zhenya Tulusha

    Zhenya Tulusha

    iPhone/iPad & Android developer with more than 3 years experience

    Ukraine - Last active: 12/14/2012 - Tests: 1 - Portfolio: 22

    4 years ago, I developed a wide range of websites using HMTL, CSS, PHP, and MySQL. The biggest part of them was e-shops developed and modifide for KTTSoft company. I start my carier of Mobile Software developer in KTTSoft company too. For last 3 years I have been highly integrated with mobile software development for iOS and Android (especially for iOS). For this period of time learned a lot of mobile technologies and made many different applications. You can check some of them on my portfolio page I mostly worked for DIMALEX LLC and got a lot of experience in mobile technologies and mobile developers team leadership.

    $20.00 /hr
    75 hours
    5.00
  9. Aman Thakur

    Aman Thakur Agency Contractor

    Application/System Programmer

    India - Last active: 14 days ago - Tests: 6 - Portfolio: 7

    Over the last 3 years, I have developed several application with .NET 2.0 & 3.5 and worked on databases like MS SQL SERVER, ORACLE and MySql while learning at institutions and working at a MNC. My core competency lies in my programming logic, and i am seeking to have some quality work in Desktop and Web Application Development and Security.

    Associated with: SEC INFOTECH PVT LTD

    $11.11 /hr
    8 hours
    5.00