Senior Java Developers & Programmers

Get Your Java Programming Project Started Today!

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.

Browse Java job posts for project examples or post your job on Upwork for free!

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, 623 Java projects are completed every quarter on Upwork.

623

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 4.70.

4.70
Last updated: May 1, 2015
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  1. Mauro Colella

    Mauro Colella

    Web Developer

    Switzerland - Last active: 1 day ago - Tests: 10 - Portfolio: 9

    Over the last five years, building up on my experience of information systems, relational databases, and Object Oriented Programming, I have developed and maintained proprietary web applications combining a PHP or JSP backend, rich media, and responsive frontends using HTML5, CSS3, jQuery, Bootstrap, Backbone, as well as a number of other frameworks. I have also worked frequently with either Java or Adobe Flex, on both the backend and frontend. I am completely fluent with either Drupal, or WordPress, and have developed and marketed premium items for the WordPress platform. I also have experience with more specific environments such as Facebook, Android, or Google App Engine. My primary competence lies in complete end-end management of web development projects, and leveraging the power of distributed systems to offset your costs, while increasing the efficiency of your organization. I want to build the web or mobile application you, or your business has been dreaming of. Because I can.

    $40.00 /hr
    400 hours
    4.60
  2. Gofur H.

    Gofur H.

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

    Czech Republic - Last active: 5 days ago - 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.

    $38.89 /hr
    1,416 hours
    4.99
  3. Robert Kluver

    Robert Kluver

    Lifetime Internet Guru

    United States - Last active: 4 days ago

    Well before the World Wide Web was a common phrase as it is today, before most people even owned a home computer I was programming code in a variety of languages for a variety of network related projects back when you had to put the handset of a telephone on a 300 baud modem. Trillions of lines of code under my belt and a mind that functions like a computer processing unit I not only understand today's most popular programming languages, I know how the languages themselves came to be. I am an expert who has owned, operated or worked with thousands of technology based businesses over the past 25 years. More than a programmer, I am a valuable consultant to any business wishing to build or improve any online enterprise. My work is relatively fast, accurate, functional and most importantly well constructed based on your exact needs. I do all of my own work but will bring in experts if necessary to accomplish the goals of your organization. I am an American living in Pennsylvania.

    $55.00 /hr
    7 hours
    5.00
  4. Jeremy Nagel

    Jeremy Nagel Agency Contractor

    Zoho/PHP/Angular JS/Data Analysis specialist

    Australia - Last active: 12 days ago - Tests: 5 - Portfolio: 3

    Data scientist turned freelance developer specialising in Zoho Creator/CRM + PHP/Angular JS. I trained as a research scientist and as a programmer, graduating from Monash Uni with first class honours in Bioinformatics/Data Mining in July 2011. Since then I have spent 3 years freelancing as a developer/consultant specialising in the Zoho Suite + custom PHP websites. My clients include Microsoft, Intel, Yarra Valley Water, PixcPhotos.com as well as numerous SMEs. I am a native English speaker living in Australia. My communication skills are first rate: I have won numerous prizes for my writing (e.g. a trip to Switzerland) and public speaking (through Toastmasters). Over the last five years, I have built a large number of websites and software applications in Zoho Creator, PHP, Java, .Net and Python. This means I understand web and software development and I can also explain these concepts to non-tech experts. My current focus is on the Zoho Suite. I started using the products myself, and love them so much that I now make a living from setting them up for my clients. I can build just about any application you like in Zoho Creator (view my portfolio for details). I can help boost your sales by setting up Zoho CRM for you. If customer service is your focus, I can set up Zoho Support for you. And if you're using other software (e.g. accounting packages), chances are I can integrate them into Zoho so your backend systems will play together nicely. A note about pricing: Usually I work on a fixed price basis. I will work with you to develop a project specification and then quote to do the whole job rather than working on an hourly basis. This means you have the peace of mind of knowing exactly how much a project will cost. If the scope changes, we will obviously need to discuss a change in price, but I think it is crucial that your expectations are clear as to how much you will be outlaying. The hourly rate on my profile is for the subcontractors working for me. I generally act as a project manager supervising my developers rather than doing the coding myself because I've got too many projects to handle myself. If you do want me to work exclusively on your project, my rate is $200/hour. Generally people prefer to work with me as a project manager because it works out to be more cost effective, faster and just as high quality because I conduct code reviews and my team and I have an intensive manual and automated QA process before handing over work. Skills: Zoho CRM, Zoho Creator, Zoho Books, PHP, Laravel, Angular JS, jQuery, Fat Zebra, Xero, Base CRM

    Groups: LoginRadius

    Associated with: Nuanced IT (agency)

    $66.67 /hr
    629 hours
    4.99
  5. Andrey Kozhuhov

    Andrey Kozhuhov Agency Contractor

    Drupal Association member, Certified PHP5 Developer

    Russia - Last active: 2 days ago - Tests: 11 - Portfolio: 15

    Brainbench PHP5 Certified Developer. Drupal Association member oDesk Coding Challenge Champ - 9 years in web applications development using PHP, Python, JS, JQuery, MySQL - 7 years in Drupal development. - 4 years in SOAP,REST services development - 3 years of Windows development using Delphi, C#, C++ , WinAPI 5.00 1st Place! @ Advanced PHP 4.90 Top 10% @Drupal 6.14 4.75 Top 10% @PHP5 4.75 Top 10% @Java 4.75 Top 10% @DotNet 3.5 using C# 4.25 Top 20% @HTML 3.40 Top 20% @C++ You can check my tests, certificates and portfolio to be sure.

    Groups: Bluehost Developers and Designers, Coding Champs...

    Associated with: CimpleO,LLC

    $33.00 /hr
    871 hours
    5.00
  6. John Clarke

    John Clarke

    Web, Desktop Applications and Database Developer

    United States - Last active: 03/18/2011 - 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
    5.00
  7. Giannis Z.

    Giannis Z.

    Web engineer

    Greece - Last active: 11/02/2013 - Portfolio: 18

    Over the last 5 years, I have developed a wide range of portals, web apps and websites using HMTL, Javascript, PHP, Java and SQL with various frameworks like Symfony and libraries like jQuery. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build web applications and websites from the ground up for you or your business.

    $133.33 /hr
    61 hours
    5.00
  8. Manfred U.

    Manfred U.

    Development, QA and Security, Forex

    Austria - Last active: 10/06/2014 - Tests: 28 - Portfolio: 10

    Over the last 20 years, I have developed a wide range skills including development, QA and IT-security. I developed several websites (including shops) and a few client-server-apps using Java and MySQL. I also was trained on a large variety of testing and security tools, they are just too much zu list it here. Every single skill is up to date.

    $33.33 /hr
    64 hours
    4.89
  9. Osam Aziz

    Osam Aziz

    Consultant, Project Manager, Full-Stack Dev, Sysadmin and Designer

    Canada - Last active: 11/18/2014 - Tests: 3

    As a full-stack developer with transferable skills and close attention to details, I am able to handle projects from start to finish with minimal supervision because I have an excellent general sense of what a product should and shouldn't do. I’ve designed and implemented many software systems. In most of the positions I’ve held, I’ve been involved in the full life-cycle of the project, from requirement analysis, initial design and implementation through to deployment and production support. My strongest technical expertise currently lies with Python (Django, Flask), PHP (Zend Framework, Laravel, Yii, FuelPHP, CodeIgniter), JavaScript (jQuery, AngularJS, Ember.js, Node.js), mobile apps (PhoneGap/Cordova and Corona SDK) and responsive web design with HTML5 and CSS3. I have also worked with a range of other languages and technology stacks, including Ruby, Perl, Shell scripting, Java, C#, Go, Lua and more.

    $59.00 /hr
    485 hours
    5.00
  10. Stefano Fratini

    Stefano Fratini

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

    Australia - Last active: 11/18/2013 - 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
    4.86