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
More options
Clear all filters
  1. Alexander L.

    Alexander L.

    Java J2ee Master

    Ukraine - Last active: 11/27/2014 - Tests: 1 - Portfolio: 2

    With over 8 years of experience in IT, my goal is to build professional Java applications. My areas of expertise include a broad range of technical experience focused on software development and data design. In the last projects I've used Java-Swing, Applets, Java Processing 2.1, MT4j, JBoss 5.1, Oracle 9, YUI, Javascript, HTML, CSS, JDBC, EJB 2.1 and a lot of other libraries and technologies. Also I have some experience with Python.

    $150.00 /hr
    259 hours
    5.00
  2. 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
  3. Justin Nelson

    Justin Nelson

    Senior Software Engineer

    United States - Last active: 02/20/2014 - Tests: 4

    I enjoy building software. (Period) I currently work for Anytime Fitness as a Senior Software Engineer.

    $55.56 /hr
    234 hours
    5.00
  4. Kiran J.

    Kiran J.

    Sr. Cloud Solutions Engineer

    India - Last active: 5 days ago - Tests: 1 - Portfolio: 2

    I am Google certified "Google Apps Deployment Engineer" with 2 years of experience. I have played a lot with Google Apps services(Gmail, Google Sites, Google Docs) including Analytics, Adsense and webmasters tool. I also have experience in Google App Engine(GAE), Google Apps Script(GAS), Google Forms. I have developed applications using Python. I have expertise in JAVA, Javascript, PHP, .NET and Python in my team.

    $22.22 /hr
    40 hours
    4.79
  5. Mohit A.

    Mohit A.

    Web Developer,Android Developer and Penetration Tester

    India - Last active: 1 day ago - Tests: 32 - Portfolio: 14

    Have Passed more than 31 oDesk tests. I am oDesk verified, plus most of my hourly contracts are part of the money back guarantee program by oDesk. Over the last 8 years, I have developed a wide range of websites using HTML, PHP, and MySQL including sites for small businesses. I am seeking opportunities to build websites from the ground up for you or your business. I love and dream about WordPress every moment of my life. I am well trained in graphics designing and manipulation as well . I have been using Adobe Photoshop for over 5 years now. I am new to android development but very enthusiastic about showing my skills to achieve the target in the specified time Languages I know: • C • VB6 • Visual C#.net 3.0 • VB.net 3.0 • Java • CSS • HTML • JavaScript • MySQL • PHP • Regular Expressions (RegEx) • jQuery e.t.c Technologies I know/have experience with : • Flash • Photoshop • llustrator • Audacity • Blender • Android Dev Kit • Wordpress • Drupal • Joomla • JSON • Metasploit e.t.c I have a working knowledge of a broad range of software together with primary and secondary research capabilities. Further being a Ethical Hacker, I have been doing Vulnerability Assessments and Penetration Testing . I have been known to find SQLi ,XSS ,CSRF,LFI,RFI and other vulnerabilities on websites.

    $80.00 /hr
    292 hours
    5.00
  6. Usman Ashraf

    Usman Ashraf

    IT Solution Provider

    Pakistan - Last active: 22 hours ago - Tests: 13 - Portfolio: 6

    We are company of highly professional, motivated, and experienced web programmers, conceptualizing, developing, and delivering reliable, extendable, functional, customer focused IT solutions to our prestigious clients. Ashtex Solutions was founded in 2004 by brainiac graduates of FAST, the most reputed and well rooted IT university of Pakistan. We offer originality in our work, coupled with the most up to dated knowledge of cutting edge technologies available in the market. At Ashtex Solutions we develop efficient web and desktop solutions covering a huge range of industries. We will take up your project from the very initial development stage, and will take you along with us through open, transparent, and effective communication, till the final deployment of the solution. We use the most advanced cutting edge technologies and always keep our selves ahead of the market, which in turns benefit our clients in terms of efficient, clean, stable, and accurate desktop & web solutions, which increases the client's competitiveness in the market. Our client base is highly diversified. It ranges from small website development to complex, custom tailored software solutions for our clients. Our web solutions increase the competitiveness of clients and provide them a better standing in the global market. Our expertise and confidence gives us the ability to deliver high class IT products and as a natural out-come we retain our clients forever. We offer vertically integrated solutions to our clients starting from template creation to fully deployed web solutions. Our service suite includes the following - Creation of web templates (CSS3.0, HTML 5.0) altered according to client's specifications and requirements. - Development of web graphics including the web slicing for a managed website design. - Client side scripts (Java Script, JQuery) for an interactive web user experience. - Server side scripts (ASP.net, PHP) to enable dynamic/run time processing based on user requirement. - Addition of persistent data storage in the form of ANSI compliant data bases (MySql, MS SQL Server, Oracle, MS Access) - Test deplyoments on the company maintained test servers. - Installation of web servers (Apache, IIS, Tomcat) and the actual deployment of the web solution. - Free support and bug fixes for 6 months after deployment. Besides our technical expertise, we offer a complete professional environment for our clients. Our other services include - We "always" full fill our commitments. In our seven years of business we have never backed out from our commitment. - Our solutions always cover the entire scope of the client specifications and they are delivered in timely fashion as per the committed date with the client. - Our expertise enable us to offer quality, competence, and quick execution of projects, from small ones to even the most complex ones. - We never make customers; we always build clients with a focus on long term business relationship. That's one reason that our clients always come back to us for more work. - We are always very peculiar about the intellectual property of our clients. The product which is custom made for a client is never distributed to others - We always keep a back up of binaries and source code. So in-case you loose your data you can always have the back up from us. - We have a huge repository of libraries (developed over time) available at our disposal for a rapid application development. - We are always available 24 hours around the clock. - Once an inquiry is posted on our systems, we reply within 12 working hours. - We offer free consultation and there is no obligation on the client's side. - By offering cost efficient solutions we give our customers a competitive edge in the market. - Our representatives are highly trained in effective, concise, and "to the point" professional communication. - We always take ownership of our products. We will love to hear from you and have you as our client.

    $20.00 /hr
    1,289 hours
    5.00
  7. Biju J.

    Biju J.

    Web applications,Access & Excel VBA/Macro developer

    India - Last active: 22 hours ago - Tests: 4 - Portfolio: 7

    Seeking challenging assignments for software development (windows and web), VBA Programming, auto processing / manipulation of excel and word documents. Technically sophisticated professional, offering 16+ years of insightful experience in Computer Programming, Software Training and Troubleshooting in India and abroad. During my 16 years of work experience, I have developed many software applications using the technologies Java / JSP / HTML / JavaScript / ajax, C#, Visual Basic, VB.Net, Visual Foxpro, Excel VBA, Word VBA, MS SQL Server, Sybase and MS Access. Example of work done : Work Order Tracking System, Call Desk Ticket Scheduling System,Payroll system, Water Connection & Billing System, Time Sheet & Cost Tracking System, Estimation System, Mail Server System, IT Help Desk & Tour Management System etc. I also have very good experience in Microsoft Office Package Excel,Word and PowerPoint. Expert in making forms in MS Excel and Word with validation, functions, macros and VBA application. Example of work done in excel : Developed function using excel macro to convert number to word (spell number). Developed excel form with look up functions, validation to verify the invoice of contractor. Developed a MS Word VBA application for extracting content from another word file and insert data in a new document based on the selection criteria in a cascading list box. Award: I received award from Saudi Arabian Oil Company for the automation of Work Order Processing with paperless workflow.

    $19.00 /hr
    983 hours
    4.97
  8. Aleksandar Svorcan

    Aleksandar Svorcan

    HTML/CSS, Wordpress and phpBB3 expert

    Serbia - Last active: 1 month ago - Tests: 24 - Portfolio: 18

    Over the last 6 years, I have developed a wide range of websites for startup companies and small businesses. My core competency lies in complete end-to-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. As you can see, I have a very high score here at oDesk. All my clients are completely satisfied as I give everything to fullfil their requirements and get the job done extremely quickly.

    $16.67 /hr
    174 hours
    4.98
  9. Mihovil R.

    Mihovil R.

    Lotus Notes/Domino and Java/J2EE developer

    Croatia - Last active: 4 days ago - Tests: 14 - Portfolio: 6

    I am a passionate J2EE/Java, Lotus Notes (certified), Node JS software developer and architect with over 6 yrs of professional experience including other programming languages like JavaScript, C# Vb.net and others. Wide range of experience in developing and maintaining Java/J2ee web systems, Lotus Notes web and client applications and plugins as well as Node JS applications and REST APIS. I, also, have a great deal of experience in PDF generation MS Office/OpenOffice document automation and assembly, VB, VBA, various document format manipulations. My goal is to make my employers happy and content with solutions I make them. I do not do mediocre jobs and do not make/give mediocre solutions so choosing me as your contractor offers a great deal of quality and professionalism. I also offer a lot of consultation services on many software development areas and always for free when they are a part of my project. I pride myself in good work ethics and moral and I know my employers see and value it. Interesting, useful and challenging projects make my heart race, motivate me and I am always willing to step in or join in any way possible. You got one? Send me a short note about it ASAP !

    $25.00 /hr
    1,030 hours
    4.97