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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. Huy Nguyen

    Huy Nguyen

    Senior Web developer

    Vietnam - Tests: 3

    I'm a senior java developer, major on Computer Graphics, GIS, Document Distribution, Document Management and BPM, Print stream processing (PDF, EMF,TIFF, PCL, XPS, PS) for companies of all sizes around the globe. Always try my best and produce the excellent result as much as possible are my working style. Definitely, you will always be satisfaction if you work with me.

    $16.67 /hr
    26 hours
    0.00
  2. Joseph Pareja

    Joseph Pareja

    Experienced Virtual Assistant and Data Entry Specialist

    Philippines - Tests: 1 - Portfolio: 3

    I have been working as a Virtual Assistant for 3 years. I have a lot of experience in Ms office, Buildbox, Photoshop and Android Development. I am knowledgeable in WordPress, SEO, Amazon and video editing. I always give my best on everything I do, because meeting my client's satisfaction is my goal COMPUTER SKILLS: Android development (Java + XML) BuildBox Game Builder Microsoft Office (Word, Excel, PowerPoint, Access), Photoshop Knowledgeable in WordPress and Woo Commerce, MailChimp Basic HTML/CSS, PHP, C/C++, Visual Basic .NET, SQL Data entry Basic Hardware Servicing, Networking  Computer literate  Experience in a variety of office work  Fast learner, and works well with others  Good in English  Hardworking and Dedicated willing to learn and undertake training that would develop my skills and strengthen professional growth.

    $7.78 /hr
    15 hours
    0.00
  3. Hossein Kazemi

    Hossein Kazemi

    Backend Developer-Architect

    Netherlands

    I have extensive experience in creating highly scalable systems with Java and Scala and related technologies as well as great developing Natural Language Processing and Machine Learning algorithms and software (Worked on projects for government projects and also in the entertainment area). I also have experience working with Python for NLP and Machine Learning research and Ruby on Rails for fast web prototyping. Quality, Transparency and Honesty is my working framework. I am comfortable working with cloud such as Amazon's AWS. Key Technologies: Play Framework 2, Spring Framework,J2EE, Java/Scala, Python, PostgreSql,MySql, Redis, ActiveMQ, Akka,...

    $40.00 /hr
    12 hours
    0.00
  4. Tong Kam

    Tong Kam

    Senior Android&iOS Front end developer

    Hong Kong - Tests: 7

    I am highly experienced Android & iOS front end developer, and have developed many apps during these 5 years in Hong Kong. Some of my apps are already popular on google play store or app store, and I am proud that all my apps have highest quality with beautiful UIs as well as perfect features with zero bug. Customer's satisfaction is my main concern in all details of app requirements, to produce perfect services, I only develop NATIVE mobile apps with several test devices that has different resolutions and most OS versions including the latest lollipop and ios8. ✔ Main Services - Photo edit&sharing apps like instagram - Social apps like Tinder and Whatsapp with messaging - Geo location apps with powerful Google Map integration - Restaurant&Hotel Management apps - Video&Audio streaming apps - Push message like GCM, Parse.com, Pushwoosh etc - Hybrid apps with native & custom webview - Full sync apps like E-mail apps integrating with SQLite local db - Other business apps and ERP management system apps. - Web Service integration with JSON Restful, XML, Soap - Db designing & Optimized web apis development ✔ Programming languages and environments - Java / Eclipse & Android Studio - Objective-C & Swift / xCode - Php & Javascript - SQL queries optimization - C, C++, C#, Visual Basic, .NET frameworks ✔ Availability - 18/24 hours, 40+ hours full time I always take great attention to project logic as well as detailed pixel-perfect UI elements to make effective and optimized apps, having good understanding of client's requirements. I always guarantee my work in quality and speed, If you need BEST mobile app developer please take my proposal and contact me anytime. Thanks

    $40.00 /hr
    52 hours
    0.00
  5. Nicolas Gomez

    Nicolas Gomez

    Software Developer

    Argentina

    I consider myself to be very responsible, creative, enthusiastic and proactive. I enjoy new challenges, show great adaptability to change and enjoy working in groups, even under high pressure. I feel very comfortable solving different kinds of issues and this is where I think I’m most qualified. I've had experience leading groups of people, and I’m willing to grow even more in this area. I’m currently working as an Information Security consultant for a company and as an independent Software Engineer, mainly focusing in Java development. Currently I'm working with jBPM technology and the last year I've participated in Google Summer of Code, performing a jBPM and CMS Integration into the KIE-Workbench. A module to be able to manage documents from jBPM console using CMIS protocol. https://www.google-melange.com/gsoc/project/details/google/gsoc2014/nicogomez/5724160613416960 Blog: https://nicolasegomez.wordpress.com

    $50.00 /hr
    42 hours
    0.00
  6. Shahadat Hossain

    Shahadat Hossain

    Amazon AWS| Ruby-on-Rails| Javascript| Python Django| Spring Framework

    Bangladesh - Tests: 6 - Portfolio: 5

    Over the last few years, My interest in web & Mobile application development has turned into a passion which I want to monetize. I have developed wide range of web applications using Ruby on Rails,PHP, Web Frameworks, J2EE application development ,SQL Server, MySQL, AJAX, Magento, Javascript, Joomla, Wordpress, Silverstripe and various other content management, shopping cart and payment systems.I also work with amazon webservices. For last few years I was working with JavaScript using Node.JS, CouchDB and PhoneGAP. Also I have the competency with JAVA, Spring framework and android mobile based web application development. My core competency lies in complete end-end management of a new web development project and I am seeking opportunities to build websites from the ground up for your business.

    $11.00 /hr
    12 hours
    0.00
  7. Katherine W.

    Katherine W.

    Data Entry Specialist

    United States

    I am a second-year student at The George Washington University majoring in Computer Science and Math. I have experience in research, data entry, and some web-based programming (Ruby on Rails, some HTML/CSS). I have worked as a software development intern at a startup named Scatter. I have worked in research in graph theory and computational biology. Additionally, I have worked as a computer science and math tutor. I have previous experience doing data entry with Genetic Alliance as a Federal Work Study employee. I excel at data entry work. I am a very quick typist and am very skilled at quickly and efficiently finding information. I am a Dean's Honors List student and have completed research in computational biology. I am very interested in companies that are trying to do old things in new ways.

    $12.26 /hr
    108 hours
    0.00
  8. Chandrakant Sindagi

    Chandrakant Sindagi

    Sr. IT Recruiter

    India - Tests: 2

    Have a total of 6 years of work experience with 4 plus years of IT recruitment and Staffing in US. Have experience working on different job portals like Monster, Dice, CareerBuilder, Naukri, Indeed, Rootjobs Thorough knowledge of recruiting process from sourcing to recruiting for different employment types Work on job orders from startups to Fortune 500 companies. Excellent recruiting skills on LinkedIn with great success in hiring technical resources. Experience with Social Media recruiting (Facebook and Twitter)

    $9.00 /hr
    336 hours
    0.00
  9. Mika Sellers

    Mika Sellers

    Senior Programmer/Analyst

    United States - Portfolio: 4

    I'm an experienced web developer with more than seven years of experience working in the software development field. I have a strong background in web and application development. Specialties: Actionscript, CSS, C#, C++, Database Administration, Flash, Graphic Design, Groovy/Grails, HTML, HTML5, Illustrator, Java, Javascript, jQuery, Mobile App Development, MySQL, Objective C, Object Oriented Programming, Oracle, Perl, Photoshop, PHP, PL/SQL, Python, Web Application Development, Unix, XML. •Created various mobile applications for the iOS platform. •Involved in all stages of website and web application development, from planning and creation to deployment and management. •Created websites and web applications using Flash, HTML, Javascript, XML, PHP, MySQL. •Front and Backend Web Development, UI, and Graphic Design using Flash, HTML, CSS, Javascript, XML, PHP, MySQL.

    $20.00 /hr
    102 hours
    0.00
  10. Suresh S.

    Suresh S.

    Senior Automation Engineer using Selenium, Protractor

    India

    I have been in the field of Software Quality Assurance since August, 2011 to till date(4 years). I'm passion about automating web app testing with different tools like Protractor, Selenium Webdriver 2.0 etc. I have been working with Protractor from the past 2 years. And have strong knowledge on different features of Protractor (versions from 1.3.0 to 2.1.0) and Jasmine BDD. Good at designing Readable, Maintainable and defect Oriented test automation scripts with Protractor, Selenium and Test-NG. Good reporting design as well. And have been working with Agile process since my joining as test engineer. and good at defect reporting to JIRA and at MySQL, Java-script and Java. Have good communications skills which made my task/life easy in understanding client expectations and requirements through oral communication as well as non- oral communications.

    $10.00 /hr
    15 hours
    2.85