Senior Java Developers & Programmers

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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, 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. Alex Dowad

    Alex Dowad Agency Contractor

    Programmer

    Zambia - Last active: 01/13/2014 - Tests: 14 - Portfolio: 9

    I started programming at 10 years of age. Since then, I've learned more than 10 programming languages and written more programs than I can count, including desktop applications, web applications, games, utilities, and even some embedded systems (using C/assembly). Currently, my primary language is Ruby, but I'm also very familiar with Java, C, SQL (MySQL and Postgres dialects), Clojure, JavaScript, CoffeeScript, and Common Lisp. You can see some samples of my code at "http://www.github.com/alexdowad/showcase". You can also see programming-related questions which I have answered at "http://stackoverflow.com/users/960828/alex-d".

    Associated with: Nkalamu Logic

    $42.00 /hr
    817 hours
    4.94
  2. Allejo Chris Velarde

    Allejo Chris Velarde

    Experienced Web Developer, Php (Symfony, CI, Cake) MySQL, Javascript

    Philippines - Last active: 1 day ago - Tests: 6 - Portfolio: 6

    I worked for multinational clients for more than three years as Web Developer, primarily using PHP and its major frameworks (CakePHP, Symfony, CodeIgniter), and Javascript using mainly jQuery on my previous projects. I always make sure that I could establish good communication with my client to ensure that projects are true to its goals, on budget and delivered on time.

    $23.00 /hr
    1,552 hours
    5.00
  3. Arshdeep  Singh Sra

    Arshdeep Singh Sra

    MATLAB/CSS/Javascript/WordPress/Adobe Photoshop/Adobe flash/Java/C/C++

    India - Last active: 1 day ago - Tests: 13 - Portfolio: 5

    M.Tech.(Computer Science) | Certified Information Security and Ethical Hacker | Software Developer I am Arshdeep singh and I love programming and technology . I am Fast-learner with multitasking skills and with the ability to work well in both team-oriented and self-directed environments. I love to generate new ideas and devise feasible solutions to broadly relevant problems.Specific fields of interest include Java Programming , MATLAB and Information Security.I Want to work with those employers which stimulates ability and creativity, so that I can fulfil their requirements with my knowledge and experience and at a same time improve my efficiency. TECHNIQUES FAMILIAR WITH: Software Development: MATLAB, Java, C, C++. Web Development: Wordpress, Php, Html, CSS, JavaScript. Mobile Development: Android, IOS. Security: All Ethical Tasks as well as Penetration Testing. Graphics Designing and Flash: Adobe Photoshop, Adobe Illustrator, Adobe flash Translation: Hindi-English, English-Hindi, Punjabi-English, English- Punjabi, Punjabi- Hindi, Hindi - Punjabi. Transcription: Any accent Australian accent, US, Canada, Indian.(Hindi, English, Punjabi) Audio Editing: Adobe Audition (Noise Removal, Quality Enhancement)

    $10.00 /hr
    96 hours
    4.99
  4. Ma. lorraine B.

    Ma. lorraine B.

    Data Entry | Touch Typist | PDF Expert | Software Developer

    Philippines - Last active: 1 day ago - Tests: 13 - Portfolio: 1

    Look no more, your search for an awesome, reliable, and skilled freelancer ends here. 100% Job Success. 4.94 Feedback Score. As a freelancer, what do I value? - Giving high quality output - Meeting deadlines (or even ahead of it!) - Constant updates/communication to client I've been working on oDesk for 4 years and counting, always providing great services to all my clients. Data Analyst | Data Entry | 80 WPM Touch Typist ( can type without looking at the keyboard) | Transcriber | PDF Conversion | Adobe Acrobat | Microsoft Word | Microsoft Excel | QA/QC | Google Apps | Utility Application Developer | more Quick on responding to interviews and messages. Committed in delivering only high quality and on-time output. Please do take a time to look at my work history (and the clients' feedback) and portfolios to further appreciate the kind of work that I deliver. Looking forward on working with you! :)

    $8.89 /hr
    937 hours
    4.94
  5. Hendrik Tukunang

    Hendrik Tukunang Agency Contractor

    Professional web, mobile and desktop developer

    Indonesia - Last active: 1 month ago - Tests: 8 - Portfolio: 5

    I specialize in web development, specifically PHP, MySQL, Ajax, jquery including but not limited to mobile (Android specifically), java desktop etc. I also rank in the top of my field in regards to Artificial Intelligence. My specialties compliment a wide array of industries. For example, a few of my recently completed projects include; hotel and tour reservation, library information systems, supermarket information systems through to more complex infrastructure such as cloud technology systems and more.. I pride myself on going the extra mile for my clients. But don’t take my word for it, please read my cliental feedback for an unbiased opinion. Kind Regards, Hendrik Tukunang Web Developer, Entrepreneur, Business owner/operator. Client for life..

    Associated with: Acrylic

    $10.00 /hr
    17 hours
    5.00
  6. Zvonimir Gračak

    Zvonimir Gračak

    Android | Python | Java | C

    Croatia - Last active: 07/08/2013 - Tests: 3 - Portfolio: 9

    A person who is connected with mobile and computer technology for over 10 years, currently a student at the Faculty of Electrical Engineering and Computing in Croatia. Why should you hire me? First of all, I'm very comunicative, hard-working and reliable person, always looking for new challenges and wide-open for learning new stuff. I can guarantee you would be very satisfied with my services since I would always give my best. Looking forward to work with you.

    $5.56 /hr
    121 hours
    5.00
  7. John Comeau

    John Comeau

    expert troubleshooter, generalist developer, tenacious problem solver

    United States - Last active: 03/27/2012 - Tests: 2 - Portfolio: 1

    "Jack of all trades, master of none" is typically said in a derogatory fashion, but I adopt the title gladly, and you will not likely find more than a few dozen generalists worldwide who can match my troubleshooting and problem-solving skills. I've been programming, on and off, for 40 years, if you count my study of BASIC in 1968, 6 years before I actually got my hands on a computer: the DECSystem-10 at Worcester Polytechnic Institute. As a result of working on computers and microcontrollers of various sizes and capabilities over the years, I have learned to get to the basics of a problem, come up with a prototype solution, and refine it to the customer's satisfaction. My methodology, which I found later is used by many successful programmers, is "build one to throw away"... once the code is working, rewrite it from scratch, correcting the false assumptions made in the first attempt, and refactoring to make a clean, maintainable, codebase. My background in both the electrical/electronics side of things plus years of experience reverse-engineering and improving software on dozens of different architectures gives me the rounded background necessary to take on projects which leave specialists lost. I may charge more than most ($100 is my usual rate, but I found it's unrealistic on Odesk), but when you've run up against a brick wall, I can likely find a way over, around, or through it.

    $100.00 /hr
    87 hours
    5.00
  8. Khem A.

    Khem A.

    IT - Wordpress Expert | PHP/SQL Programmer

    Philippines - Last active: 2 months ago - Tests: 6 - Portfolio: 16

    Over the last 6 years I've been developing website projects using (x,d)HTML, PHP, MySQL, Javascript, and FLASH sites. My core competency lies more on the development of additional functions and apply modifications on websites. I have the knowledge on forums and blog installations and modifications (like PhpBB and Wordpress). I also have 2 years experience as a Computer Technician in Saudi Arabia. I work fast with quality output. I will do the best I can to satisfy your needs. Contact me if you need your website redesigned or if you want a design in PSD/AI to be converted to wordpress. It will be my pleasure if you will hire me! Previous Projects: (146 projects to date) http://publicproperty.com.au/ www.iyogaprops.com.au http://polite.com.au/ http://designsuite.com.au/ http://apricotzebra.com.au/ http://simplyframeless.com.au/ http://corporatesignindustries.com.au www.corporatesignindustries.com.au/ecommerce http://beyondcreative.com.au/ http://goodoatcompany.com.au

    $12.00 /hr
    612 hours
    4.94
  9. Héctor fernando L.

    Héctor fernando L.

    Mexico - Last active: 4 months ago - Tests: 6

    Experience with Linux application servers sepeciffically JBoss and Tomcat under a RHEL environment. Management of great loads of data using Talend Open Studio and developement of specific tools with java. Bash scripting to automate certain repetitve tasks such as keep alive web applications, file organization, server manteinance,etc. TOEIC Score: 955 points.

    $30.00 /hr
    28 hours
    5.00
  10. Atid Gharbi

    Atid Gharbi

    Freelance Programmer: Java, PHP, HTML, JavaScript, CSS, PL/SQL, Prolog

    Tunisia - Last active: 04/17/2012 - Tests: 7 - Portfolio: 6

    Hi, I'm Atid Gharbi and I have a licence degree and a masters degree in computer engineering. Over the last 4 years, I have developed a number of Desktop Applications using mainly Java and MySQL, I also worked on a few Web Applications using J2EE, PHP, HTML and CSS. Some of those applications were personal projects and others where for other people. My main field of expertise is Java and PHP programming, but I also have some experience in the following areas: SQL, PL/SQL, OOP modeling and Prolog. I'm fluent in English, Frensh and Arabic (written and verbal). I'm available more then 40 hour per week, I hope you contact me

    $11.11 /hr
    17 hours
    5.00