Senior Java Developers & Programmers

Showing 7,123 freelancers

Senior Java Developers & Programmers

Showing 7,123 freelancers

Get Your Java Programming Project Started Today!

Post your Java projects on oDesk 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 oDesk 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 oDesk, 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 oDesk for free!

Java Job Cost Overview

Typical total cost of oDesk Java projects based on completed and fixed-price jobs.

oDesk Java Jobs Completed Quarterly

On average, 486 Java projects are completed every quarter on oDesk.

486

Time to Complete oDesk Java Jobs

Time needed to complete a Java project on oDesk.

Average Java Freelancer Feedback Score

Java oDesk freelancers typically receive a client rating of 4.69.

4.69

Last updated: March 1, 2015

  • Senior Java/Scala Engineer/Architect

    My Elance profile with established reputation: https://www.elance.com/s/aparamonov/ I'm very experienced software engineer with architect skills. I have great experience in Play! 2.0, MongoDB, Spring Framework, Hibernate, JSF (etc.). I'm walking on Agile … more

    My Elance profile with established reputation: https://www.elance.com/s/aparamonov/ I'm very experienced software engineer with architect skills. I have great experience in Play! 2.0, MongoDB, Spring Framework, Hibernate, JSF (etc.). I'm walking on Agile way -- Code Review, Continious Integration, stand ups, frequent releases, etc. I'm been able to solve any technical issue, that we will be faced with. I strongly and deeply review all requirements before and while development process. I've worked in several projects as a Technical Leader.  less

    scala java play-framework postgresql amazon-web-services mongodb angularjs elasticsearch nosql spring-framework 00 more less
    • $67.00 HOURLY RATE
    • 5.0
    • 1370 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 9 TESTS
    GROUPS:
  • OCPJP, Expert in Spring/Hibernat/Java/JEE based Projects

    I am having 6+ years of professional experience in Design and Development of Java Technology based Desktop and Web Applications starting from Requirement Gathering phase to Testing and Delivery Phase. I have worked with giants like Tech Mahindra, Ericsson etc … more

    I am having 6+ years of professional experience in Design and Development of Java Technology based Desktop and Web Applications starting from Requirement Gathering phase to Testing and Delivery Phase. I have worked with giants like Tech Mahindra, Ericsson etc. as Software Engineer. Right now I am Sr. Software Engineer in a US based company where I am involved in design and development of various Web based projects on financial and telecom domain. My Skill set include - Core & Advanced Java, J2EE, Struts 1&2, Spring (All Modules), MVC 1&2, JSP, Servlets, JSTL, EJB, JSF, SIP Servlets, Web Services, Hibernate, MySql, Oracle, PL/SQL, JQuery, AJAX, DHTML, GWT. I worked extensively on many servers like JBoss, Sailfin/Glassfish, Tomcat, Weblogic on Windows and UNIX environment. I extensively worked on Eclipse and Netbeans and well aware of many Eclipse plug-ins like Debugger, JUnit, SVN/HG Plugin, WTP etc. I have good experience is SCM packages like GIT (GitHub, BitBucket), SVN, Mercurial (Hg). I am well versed with several build tools like MAVEN, ANT.  less

    java j2ee jsp java-servlets-development spring-framework spring-security apache-struts hibernate gwt mysql oracle-database oracle-plsql jstl jquery ajax javascript html xml-web-services xml web-design jboss apache-tomcat weblogic tortoise-svn mercurial sip 00 more less
    • $27.78 HOURLY RATE
    • 5.0
    • 1824 HOURS
    • INDIA
    • LAST ACTIVE
    • 10 PORTFOLIO ITEMS
    • 6 TESTS
  • Oracle Certified Associate, Java Programmer

    Experience: Java programming, web scraping, mysql, MS Office, management consulting, etc. Education: Major in Computer Science Applied to Economics, Masters in Business Development Management - UBB University, Romania. Strengths: good work ethic, problem solving, flexible, reliable.

    java android-app-development web-scraping mysql microsoft-office 00 more less
    • $15.00 HOURLY RATE
    • 5.0
    • 66 HOURS
    • ROMANIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 2 TESTS
  • Android developer

    Hi, My name is Zahar Zolotarev. My #1 goal will always be to meet your needs and deadline. When working on a new project, I like to speak with the client, so that I can have a clear understanding of … more

    Hi, My name is Zahar Zolotarev. My #1 goal will always be to meet your needs and deadline. When working on a new project, I like to speak with the client, so that I can have a clear understanding of his/her needs and vision of the project. I'm honest and fair. Please take a look at my work history for comments from other clients. Thank you in advance for your time and consideration. I look forward to working with you soon. Since 2014, I develop Android applications and games. I am student from Donetsk National University. Listed below are my experience and skills. — Android (2.x & 4.x): Fragments API, Location and Sensors API, SQLite, UI, Services, Maps, AdMob,AdBuddiz, Camera, Barcodes, HTTP Async etc; — Java Core: Java Core, Multithreading, Collections API, etc; — Frameworks: JUnit, Espresso, Spoon; — Core web: XML, JSON,Rest API — IDE: IntelliJ Idea, Android Studio; — OS: Linux, Windows — VCS: Git --- Other: Gradle Also, you can find me on github: https://github.com/MrVilkaman and LinkedIn: https://www.linkedin.com/profile/preview?trk=prof-0-sb-preview-primary-button  less

    android-app-development mobile-app-development java json git github xml 00 more less
    • $10.00 HOURLY RATE
    • 4.8
    • 27 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 1 TEST
  • Junior Java and Python developer

    I'm good in algorithmic thinking and have experience from numerous competitions during high school mostly using C/C++. I have good knowledge of object oriented programming mostly in Java/Python. In Python I have worked on several web based … more

    I'm good in algorithmic thinking and have experience from numerous competitions during high school mostly using C/C++. I have good knowledge of object oriented programming mostly in Java/Python. In Python I have worked on several web based projects using Flask framework and in Java I worked with swing graphics and multi-threading applications. On my college I have finished course basing on evolutionary algorithms(genetic, simulated annealing, PSO, etc) in Java. I am seeking opportunities to build websites or desktop applications.  less

    java python c++ 00 more less
    • $13.00 HOURLY RATE
    • 5.0
    • 0 HOURS
    • CROATIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 2 TESTS
  • Groovy & Grails, Java - Freelance Developer

    On the author list of bitcoinj project http://code.google.com/p/bitcoinj/source/browse/AUTHORS . However I did only contribute one patch, nonetheless this required reading c code and translating functionality into java. Worked with linux for 4 years … more

    On the author list of bitcoinj project http://code.google.com/p/bitcoinj/source/browse/AUTHORS . However I did only contribute one patch, nonetheless this required reading c code and translating functionality into java. Worked with linux for 4 years, primarily Ubuntu. Eclipse is my primary Integrated Development Environment(IDE). Initially began programming with python, learnt a little bit of C++, including integration of python and C++. Unfortunately it has been at least 2 years since working with python and C++, so my knowledge of libraries and the languages has diminished. Currently spending a lot of time with Groovy and GRails. In the last two years programmed primarily in Java. Have experimented with github. Proficient in HTML5, CSS3, and javascript. Can read and write UML diagrams. Familiar with conventional Cryptography techniques, SHA, AES. Familiar with some Zero-Knowledge Cryptographic protocols. Available for video chat.  less

    grails groovy java hibernate jquery javascript html5 html css css3 linux-system-administration ubuntu 00 more less
    • $44.44 HOURLY RATE
    • 5.0
    • 1176 HOURS
    • AUSTRALIA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 2 TESTS
  • RockStar, Dedicated for iOS8/iPhone/iPad /Android/Parse/AWS/iBeacon

    I have been working with native iOS development since 2008, and perfectly mastered all parts of mobile technologies & skills with lots of experiences. During last 5 years, I have developed iPhone, iPad, Android apps including social networking app, dating app … more

    I have been working with native iOS development since 2008, and perfectly mastered all parts of mobile technologies & skills with lots of experiences. During last 5 years, I have developed iPhone, iPad, Android apps including social networking app, dating app, chat app, shopping app, fitness app, video/photo app, games, business apps and enterprise apps. Additionally, I have 3 years of carryover experiences in web programming with PHP, MySQL, JSP, C#, Ruby on Rails. Especially, I have already owned the best approach and sophisticated methodology for completion of mobile projects successfully. So I can surely manage any kind of projects for mobile platform, web platform and desktop platform. I love creative, innovative and professional works. I hate fall behind technologies, hackneyed idea, poor quality work result. Flexible & swift communication, Agile SCRUM approach is my strong point. It's most important to complete projects perfectly & successfully. I enjoy new challenges on daily basis, looking to overcome my own high standard goals. Give me your idea, and your dream will come into reality! :) Skill-set: ● Native: iOS, Android, Windows8 (Objective-C, Swift, Java, C#), JNI, NDK (C/C++) ● Hybrid: PhoneGap, Xamarin, Titanium (HTML5, jQuery Mobile, C#) ● Web service: XML/JSON, REST/SOAP ● Device, Kit: Bluetooth Low Energy (BLE), iBeacon, Datzing, NFC, credit card reader, MIDI ● Cloud backend: Parse.com, Parse SDK, Parse REST, Parse Cloud Code, Amazon S3 EC2 AWS, Firebase, Foodie, remoteStorage, Twillio, Plivio ● Chat & Messaging Engine: XMPP, Jabber, OpenFire, OpenTok WebRTC, Ejabberd, Erlang ● Media Streaming: Wowza, SoundCloud, Red5, Icecast ● Video/audio/image processing: OpenCV, GPU Image, CoreAudio, EZAudio, Pitch Control, Bass, AVFoundation ● Vector graphics processing: SVG, SVGZ, Illustrator ● Video/audio streaming, codec: Wowza, Red5, H.323, MPEG-4 ● VOIP, Cloud Communication: Twillio, Heroku, Tokbox ● Speech recognition, text-to-speech, Siri, OpenEar ● HTML5, Ruby on Rails, PHP, ASP, JSP, C# and their frameworks ● MySQL, SQLite, Oracle, SQL Server, ODBC ● Facebook, Twitter, Linkedin, Instagram, Youtube, Pinterest, Vimeo ● Google Map, Foursquare, Geolocation, GPS, Open Street Maps ● Augmented Reality: Vuforia, Metaio ● Cocos2D, OpenGL, Corona, Unity3D, Box2D ● Game Center, In-App Purchase, RPG server ● iAd, Adwirl, Revmob, Admob, Chartboost, Tapjoy, Flurry, Testflight ● Mantis, JIRA, RedMine, BaseCamp, Huddle, Sprint.ly, Github, BitBucket, SVN ● Cloud services: iCloud, Rackspace, Zoho CRM, Salesforce, Azure, AWS, EC2, Dropbox ● Enterprise Resource Planning (ERP), Cloud POS, Warehouse Management ● P2P Payments: Bitcoin, Guldencoin, hivewallet, breadwallet ● Online Payment Gateway: PayPal, Authorize.net, Stripe, Venmo, Braintree, Payleap ● Mobile Game Genre: Casino Slot machine, Poker, Chess, RPG, Arcade  less

    ios-development iphone-app-development iphone-ui-design ipad-app-development ipad-ui-design objective-c swift android-app-development java english 00 more less
    • $55.56 HOURLY RATE
    • 5.0
    • 144 HOURS
    • MALAYSIA
    • LAST ACTIVE
    • 10 PORTFOLIO ITEMS
    • 6 TESTS
  • java developer

    I am software engineer. Starting to code Java at University. I am like develop mobile applications (android) and enterprise sites. My recent achievments: - successfully released online service for lawyer (planetaprava.com.ua) as a lead java developer \ team lead in … more

    I am software engineer. Starting to code Java at University. I am like develop mobile applications (android) and enterprise sites. My recent achievments: - successfully released online service for lawyer (planetaprava.com.ua) as a lead java developer \ team lead in team of 2 developers and 1 qa; - successfully released service for online interview as a java developer - successfully released native mobile application for rabotalux.com.ua as a java developer - successfully released android application for calculating spend calories(pedometer) - successfully released android application for view photos from whatsapp My skills: 1. Programming languages: - Java (main); - JavaScript (submain); 2. Frameworks: - Spring - Play - express (node js framework) - mongoose (node js) - Apache tiles - Scala templates - Jquery - Hibernate - JUnit - Mockito - Selenium 3. Databases: - MongoDB - MySQL - Redis 4. REST and XML: - Jackson - Gson DOM, SAX, Xpath and JAXB. 5. other : - Git, Svn; - Redmine, Jira; - Jenkins, Hudson, TeamCity; - Confluence.  less

    java javafx swing mongodb hibernate play-framework spring-framework maven android mysql 00 more less
    • $8.89 HOURLY RATE
    • 5.0
    • 0 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 7 PORTFOLIO ITEMS
    • 6 TESTS
  • Software Engineer

    I'm passionate and motivated engineer focused on finding effective solutions and delivering product according to schedule. I have an experience working with established, large-scale software architectures and proven ability to work on a shared code base. I have strong … more

    I'm passionate and motivated engineer focused on finding effective solutions and delivering product according to schedule. I have an experience working with established, large-scale software architectures and proven ability to work on a shared code base. I have strong computer science background: data-driven systems, algorithms, 3d math. Deep knowledge of network applications architecture and development. Hands-on experience of full software development life cycle. Below is the list of technologies and skills I'm strong at because used them to successfully finish many projects during my 8 years experience in software development industry. Programming languages: C/C++, Java, Objective C, Python, Javascript, Lua Frameworks, SDKs, Libraries: Android SDK, iOS SDK, Qt, Boost, STL, OpenGL, OpenAL, Protobuf, MySQL Technologies: REST (servers and clients), OAuth, Parse, TCP/IP stack, WebSockets, WAMP, zeromq, Android BLE, iBeacon, SQL DB, IPTV, 3D Operating Systems: UNIX/Linux, Mac OS, Windows Software IDEs: Intelij Idea, Xcode, Android Studio, Eclipse, Visual Studio, PyCharm Build systems: Gradle, Maven, Ant Version control systems: GIT(+git flow), SVN, CVS, Mercurial, MS VSS My technical areas of interest and practical experience are: mobile development, embedded, game development, backend and administration.  less

    android android-app-development ios-development embedded-c embedded-linux video-streaming qt java python desktop-applications 00 more less
    • $27.77 HOURLY RATE
    • 5.0
    • 165 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 12 PORTFOLIO ITEMS
    • 7 TESTS
    ASSOCIATED WITH:
  • Software Architect - mobile, tablet, desktop, web

    * 7+ years of experience in mobile, tablet, desktop, web apps & games. Great fan of MATH! * Always interested in new technologies and managing projects to achieve an ultimate goal. * Studied Electrical & Electronic Engineering from Rajshahi University of Engineering & Technology. * Extra curriculum … more

    * 7+ years of experience in mobile, tablet, desktop, web apps & games. Great fan of MATH! * Always interested in new technologies and managing projects to achieve an ultimate goal. * Studied Electrical & Electronic Engineering from Rajshahi University of Engineering & Technology. * Extra curriculum activities includes programming competition awards, district first in boy scout, acting, recitation, speech and debating. Red-crescent award. Journals and papers.  less

    c++ java c# php unity-3d cocos2d phonegap game-development mobile-app-development website-development 00 more less
    • $18.89 HOURLY RATE
    • 5.0
    • 4020 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 33 PORTFOLIO ITEMS
    • 4 TESTS
    GROUPS:
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