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. Renato Stanic

    Renato Stanic

    Game developer for 7 years now.

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

    I am an experienced Unity and UE4 programmer and designer. I have 7+ years of experience in game development of which 3 in Unity, 3 in Java and in UE4 since it came out around 11 months. I have experience with working alone and in teams, I know how to communicate with any members of a development team. I have used a wide range of version control and ticket tracking software, and therefore I know how to structure goals to meet deadlines. Listed below are my technical skills. — Programming languages: C/C++, Java, JavaScript, C#; — Java libraries: Slick2d, LWJGL; — Data/Markup: XML, XML Schema, JSON, HTML/CSS; — IDE: Visual Studio, Eclipse, Intellij Idea; — Asset Creation Software: Blender, Maya, 3dsMax; — Texturing Software: Photoshop, dDo, nDo, 3Do, MegaScans; — OS: Android, Linux, Windows, Mac OS X; — VCS: Git, SVN, CVS, Perforce; — Engines: Unity, CryEngine, UDK, Unreal Engine 4; — Utility: Makefile.

    $33.33 /hr
    307 hours
    5.00
  2. Nathaniel S.

    Nathaniel S.

    Senior Software Developer

    Canada - Last active: 7 days ago - Tests: 2 - Portfolio: 2

    I have extensive experience developing enterprise-grade network-based web applications and desktop software for clients in government, health care, finance, and academia. I'm the lead developer on several web-based and game engine products, some open-source. I'm strongly familiar with major proprietary and open source development tools and libraries. I'm both an experienced team leader and a fast and reliable solo developer, and as an entrepreneur I understand how to balance high-quality work with the need to ship. I have an academic background with training in both statistics and research methodologies, so I particularly enjoy working on challenging projects that require analysis and creative problem-solving, and which aren't simply clones of existing software. I look forward to working with you!

    $80.00 /hr
    0 hours
    5.00
  3. Kurt Waldowski

    Kurt Waldowski

    Programmer, Designer, and Artist || kwaldo.com

    United States - Last active: 17 days ago - Tests: 2 - Portfolio: 3

    Kurt Waldowski is a multi-talented developer that has been creating games, web sites, and web applications for over 5 years. Programmer, designer, and artist, Kurt has taken part in every end of the development process. He is currently attending the University of Michigan to earn his degree in Computer Science. Kurt only bids on projects he is genuinely passionate about, and as a result, he guarantees satisfaction. He often bids with longer time constraints in order to account for potential reiteration. This assures that your vision is brought to life the way it was envisioned.

    $45.00 /hr
    0 hours
    5.00
  4. Arsalan Mehmood

    Arsalan Mehmood Agency Contractor

    Expert mobile app developer - Android and iOS

    Pakistan - Last active: 1 day ago - Tests: 3 - Portfolio: 20

    oDesk Verified Mobile Developer See the badge on the right of my profile for more information Extremely skilled, experienced and dedicated Android (mobile + table), iOS (iPhone/iPad) app developer with more than 5 years of experience. My honesty, good work ethic and professionalism come at no extra cost to my clients. If you work with me, you will be satisfied not only with result but also with step by step suggestions and top quality projects. Agile is my favorite development method. My testing devices: ✔ iPhone 5S, 4S, 4, 3G, iPad mini ✔ Samsung Note 2, Note 1, HTC sensation xe, Samsung i5500, Samsung S5 My skill-set: ✔ Native: iOS, Android (Objective-C, Swift, Java), JNI, NDK (C/C++) ✔ Web service: XML/JSON, REST/SOAP ✔ Web development: Wordpress, HTML5, CSS, JavaScript ✔ PHP, ASP, JSP and their frameworks ✔ iAd, Adwirl, Revmob, Admob, Chartboost, Tapjoy, Flurry, Testflight ✔ Facebook, Twitter, Linkedin, Instagram, Youtube, Pinterest, Vimeo ✔ Google Map, Foursquare, Geolocation, GPS, Open Street Maps ✔ Cloud backend: Parse, Amazon, Firebase, Foodie, Twillio, Plivio ✔ Chat & Messaging Engine: XMPP, OpenTok ✔ Video/audio/image processing: OpenCV, Pitch Control ✔ Cloud Communication: Twillio, Tokbox ✔ Speech recognition, text-to-speech, Siri, OpenEar ✔ MySQL, SQLite, Oracle, SQL Server, ODBC ✔ In-App Purchase ✔ JIRA, Github, BitBucket, SVN, GitLab ✔ Cloud services: iCloud, AWS, EC2, Dropbox ✔ Online Payment Gateway: PayPal, Braintree.

    Groups: Application Developers Alliance, oDesk Verified Mobile Developers

    Associated with: Virtual Proz

    $50.00 /hr
    913 hours
    4.88
  5. Agung Dewandaru

    Agung Dewandaru Agency Contractor

    JavaScript/Flash/Unity Developer & AI Researcher

    Indonesia - Last active: 14 hours ago - Tests: 9 - Portfolio: 31

    ■■■ My Objectives: It is my passion in orchestrating front-end technologies that can help you in reaching wider audience and gets your job done. It will involve a careful UI/UX design, minimalist principle, aesthetics, tweaks, and a deep passion to deliver great products. ■■■ Among my skills in Flash platform: Online Design Tool, Simulation, Streaming, Game Development, Facebook Application, 3D , Flash to HTML5 conversion, Animation, Remoting, XML, Javascript Integration, Map, and construction of custom SCORM module for eLearning. ■■■ Web Development(Desktop and Mobile): • FrontEnd :HTML5, CSS, Javascript, jQuery, MooTools, jQueryMobile, ExtJS, PhoneGap • PHP + Frameworks (CodeIgniter & Yii) • Ruby on Rails • CMS: Joomla, Drupal, and WordPress • Database: MySQL • Others: SocialEngine & Zend Framework

    Groups: oDesk Verified Web Developers

    Associated with: Shiningpillars Interactive Studio Agency

    $40.00 /hr
    4,326 hours
    4.79
  6. Usama Riaz

    Usama Riaz Agency Contractor

    Expert Android Developer

    United States - Last active: 1 day ago - Tests: 8 - Portfolio: 9

    I am driven, ambitious, and intensely interested in what I do. I taught myself how to program five years ago and have since become an expert in numerous programming languages and technologies such as Java, C++, PHP, Objective-C, and MySQL. My programming expertise paved the way for me to start a software development company called Minibit Technologies, where I have had the pleasure of working with clients from around the world on numerous interesting and challenging projects such as Twitter-like social media sharing apps, real-time multiplayer games, and ultrasonic communications systems. I don't want to bore you with a comprehensive list of my skills, so I'll just list a few of the more notable ones: Languages: Java, C++, PHP, Objective-C, Javascript, Octave Platforms: Android, iOS, Web Game Development: Libgdx, Box2d, Native Android Miscellaneous: Machine Learning, Git, Parse Talk is cheap, though. Please take a look at my portfolio projects, my oDesk test scores, and my review ratings for a more thorough assessment of my abilities. You will quickly find that I do not merely develop software - I develop highly maintainable, elegant code that will save you enormous sums in the long run. I am also a verified oDesk mobile developer, as shown by the badge on the right side of my profile. Only the most elite developers who are individually screened by oDesk are allowed to join this group. In short, if you need an app, website, or other software developed, look no further. My coding skills are incredible, my work ethic unparalleled.

    Groups: oDesk Verified Mobile Developers

    Associated with: Minibit Technologies

    $70.00 /hr
    423 hours
    5.00
  7. Denis M.

    Denis M. Agency Contractor

    Senior C++ Developer

    Russia - Last active: 9 days ago - Tests: 1

    For long years of my experience, I finished different kinds of projects. Now in every project I easily can show all my professionalism and high quality. I’m interested in projects where I could apply all my technical and communication skills. I have responsibility to manage projects and share my experience with young developers and help them to solve difficult problems.

    Associated with: ISS Art, LLC

    $36.11 /hr
    5,511 hours
    5.00
  8. Jeff Wichman

    Jeff Wichman

    Professional Video Production & Editing - Explainer Videos / Marketing

    United States - Last active: 11/11/2014 - Tests: 6 - Portfolio: 20

    I am a highly motivated, creative, and professional individual seeking to utilize my creative skills in multimedia development, web development, and graphic design. I have been a Provider and Buyer on oDesk for four years. In the Spring of 2009 I was hired by the oDesk Corporation to develop several video tutorials for the oDesk Learning Center (See: http://www.odesk.com/help/help/learning-center ). The positive feedback in my work history should attest my level of commitment to satisfying my clients' by providing not only a high-quality end product that meets or exceeds their needs, but a positive professional and enjoyable work experience. Over the last 10 years, I have supported myself through college, made a full-time career, and acquired a wealth of experience by employing my skills in the following: This is a full-time job for me and not just something I do "on the side". I have been interviewed and featured on oDesk because I was able to use my talents, skills, and experience to turn my freelance work into a full-time career. (Read story at: http://www.odesk.com/w/case_study_wichman ) :: Multimedia Production :: Video Editor & Producer, Product / Service Overview Videos, Demo Videos, eLearning Videos, Flash, ActionScript AS2 / AS3, Storyboards, Viral Videos, Intro's / Lead-In's, Camtasia, Tutorial Videos, Animation, Streaming Media, DVD Media, Audio Recording & Editing, Voiceovers :: Web Development :: Web Page / Template Design, CMS (Joomla, Wordpress, etc), Web Applications, Small Business & eCommerce, Databases :: Graphic Design :: Websites, Logo & Print Design, Illustration, Animation, Photo Editing & Optimization -Software Proficiencies- Adobe CS3 / CS4 (Photoshop, Premiere Pro, After Effects, Encore, Flash, Soundbooth, Dreamweaver, Illustrator, InDesign, Acrobat), Apple Final Cut Pro, Camtasia Studio 5, Sony Vegas Pro 8, Sony DVD Architect Pro, Adobe Audition 3.0, Adobe Media Encoder, ProTools, FL Studio, Logic Express, Garageband, Cool Edit Pro, Macromedia Fireworks, Microsoft Visual Studio.NET, Microsoft SQL Server, .NET SDK, 1.0 / 2.0 / 3.0, Microsoft (Publisher, PowerPoint, Visio) -Language Proficiencies- HTML/DHTML/CSS, JavaScript, PHP/MySQL, ASP, VB.NET, XML, ActionScript

    Groups: LongTail Video

    $37.00 /hr
    1,161 hours
    4.88
  9. Josh M.

    Josh M.

    SQA/Testing/Security/Networks/Development/Technical Writing(Canada)

    Canada - Last active: 3 months ago - Tests: 9

    Over my career I have been handed a great many challenges and I have throughly enjoyed finding solutions for my clients problems. I have not limited myself specifically to one area but many, and have enjoy a diverse technical career. I am a skilled, hard working, dedicated IT professional with over 10 years of experience. I have development experince in numerous languages and specialize in PHP/MySql web development and Linux/Windows scripts and applications. I have excellent communication skills and am available at your need.

    Groups: Bluehost Developers and Designers

    $55.00 /hr
    8,385 hours
    4.98
  10. Tarka L.

    Tarka L.

    Professional Java Web Application Developer

    United Kingdom - Last active: 07/31/2013 - Tests: 5 - Portfolio: 19

    Over the past 7 years I have worked both freelance and as part of a large development team offering Web Application services for medium to large sized businesses. To date I have never failed to find a solution to a project. 99.9% of all the projects I have worked on have been delivered on schedule and on budget. I am as confident and experienced in both conceptualizing creative solutions that will work for you, as I am following clear and concise directions. I am a highly motivated, creative, and hardworking individual. I work with great attention to detail because I love my work and am committed to providing 110% satisfaction. Whether you're starting a new business or looking to revamp or extend an existing system, I can offer a complete solution that is fast, reliable, professional and tailored to suit your individual business needs and more importantly, your budget.

    $55.56 /hr
    950 hours
    5.00