Senior Java Developers & Programmers

Showing 4,582 freelancers

Senior Java Developers & Programmers

Showing 4,582 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, 480 Java projects are completed every quarter on oDesk.

480

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 4.68.

4.68

Last updated: February 1, 2015

  • Java, Scala, Clojure, JavaScript expert.

    I have over 5 years of experience in developing web applications using Java, Scala, Spring, Play, Hibernate and JavaScript. I have developed highly concurrent, reactive applications on the JVM, as well as large-scale enterprise apps that worked with legacy databases … more

    I have over 5 years of experience in developing web applications using Java, Scala, Spring, Play, Hibernate and JavaScript. I have developed highly concurrent, reactive applications on the JVM, as well as large-scale enterprise apps that worked with legacy databases. Currently, Clojure and Scala are my tools of choice when working on my side projects. Recently, Elixir has become a part of that as well. In the past, I have developed full-scale apps using Objective-C and, ahem, PHP as well. I have been working with Scala and Clojure for quite a long time now. I have been a long time user of git, mercurial, gradle, and maven with some experience with sbt. Apart from these, I have dabbled in a lot of languages and frameworks like Go, Ruby, CoffeeScript, Groovy, node.js and several others. I have an ability to pick up new things easily. I learn new things almost everyday. I am always on the lookout for new tools for solving problems. And I have always succeeded in coming up with elegant solutions to programming problems.  less

    java scala play-framework spring-framework javascript jquery hibernate clojure oracle-java-ee mysql 00 more less
    • $25.00 HOURLY RATE
    • 5.0
    • 320 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 4 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • Senior Ruby / iOS / Android / Java / C / C++

    Mikhail is a developer with more than 7 years of experience. Mostly he worked as a backend developer. He has a strong basis in common computer science, including algorithms, design patterns, cryptography, network protocols, CPU architectures. He has a proficiency … more

    Mikhail is a developer with more than 7 years of experience. Mostly he worked as a backend developer. He has a strong basis in common computer science, including algorithms, design patterns, cryptography, network protocols, CPU architectures. He has a proficiency level in the next technologies: - Java, C/C++, Assembler (FASM x86/x64); - Windows API (incl. Crypto API) and Winsock; Mike is familiar with the next (non-comprehensive) list of frameworks and technologies: BSD sockets, Qt, Win32, MVC, Spring, JPA, Hibernate, JUnit. He is familiar with the most of SQL DB systems available on the market: MS SQL, MySQL, PostgreSQL, SQLite. And, of course, he is interested in noSQL world (he used MongoDB in some projects). He is also familiar with mobile development for such platforms as iOS and Android (Mike developed merchant applications for several webshops). He is able to design web application architecture and likes to work on high loaded applications and applications with high responsibility. When he heard about Ruby he was fond of this language, its infrastructure, community and Ruby on Rails framework in particular. Mikhail likes and uses agile methodologies for software development routines, he likes Scrum (or some derivatives from it) and has experience with RUP. He has strong opinion that source code without version control over it is not a good source code. He definitely likes git, but in the past he used SVN and CSV too.  less

    c++ win32-app-development java spring-framework ruby ruby-on-rails ios-development android-app-development sql nosql 00 more less
    • $40.00 HOURLY RATE
    • 5.0
    • 6107 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 7 TESTS
    ASSOCIATED WITH:
  • Web Developer/php/wordpress/photoshop

    I have done my graduation in Computer Science.I have worked in software house as well where I have completed number of successful projects including wordpress,core php ,MySQL,java script and some Java projects aswell.. ..

    java mysql php css html5 html sqlite wordpress cakephp javascript 00 more less
    • $12.22 HOURLY RATE
    • 5.0
    • 5 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 3 TESTS
  • Java/J2EE, Liferay, Spring, Hibernate, Web services

    • 7 years of core IT experience in Business Analysis, Project Management, Software designing ,development and support of enterprise applications. • Experienced in Core Java/J2EE, Liferay Portal Framework. • Effectively developed stand-alone application to merge/migrate Credit Card portfolio of a bank … more

    • 7 years of core IT experience in Business Analysis, Project Management, Software designing ,development and support of enterprise applications. • Experienced in Core Java/J2EE, Liferay Portal Framework. • Effectively developed stand-alone application to merge/migrate Credit Card portfolio of a bank to another. • Experience of gathering project requirements as a business analyst. • Experience of managing teams and projects as a Senior Team Lead. • Direct communication with client/business teams. • Knowledge of Financial (Credit Card Operations) and Manufacturing (semiconductors) domain. • Proficient programming skills using Liferay, Java, JSP, Servlets, Spring Framework, Hibernate Framework, Struts Framework, Object Oriented Methodologies. • Experience in IBM Web Sphere Application Server, Jboss Application Server and Tomcat • Experience with using IDEs like IBM RAD 7 and Eclipse 3.x. Version Control Systems like VSS,CVS, Subversion, clearcase. • Experienced in all phases of software life cycle like requirements gathering, system analysis, design, development, review, testing, deployment, configuration and maintenance of applications. • Excellent hands-on experience dealing with the onsite – offshore model. • Expertise in delivering value added customer services by bridging the gap between business and technical communities. • Effective result oriented team player with excellent communication and interpersonal skills  less

    j2ee java liferay google-app-engine object-oriented-design android-app-development 00 more less
    • $20.00 HOURLY RATE
    • 4.9
    • 827 HOURS
    • INDIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 4 TESTS
    ASSOCIATED WITH:
  • PHP and Wordpress developer

    One best reason for hiring me, I can make your Idea into a successful web application with state of art workings and easy to operate and maintained. I am proficient in CMS technologies like Wordpress, Magento and Drupal. I have … more

    One best reason for hiring me, I can make your Idea into a successful web application with state of art workings and easy to operate and maintained. I am proficient in CMS technologies like Wordpress, Magento and Drupal. I have great working experience in PHP, MySql, jQuery, AJAX, Javascript, HTML, CSS, ZEND, Yii, Codeigniter.... Over the last 4 years I have been serving my clients with the very best web appliactions. Looking for an opportunity to make your idea a reality.  less

    php mysql java wordpress cakephp codeigniter yii-framework symfony api-development css3 00 more less
    • $18.00 HOURLY RATE
    • 5.0
    • 184 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
    ASSOCIATED WITH:
  • Liferay & Java/J2EE Application Developer with UI experience

    Looking for challenging Liferay portal development and Java/J2EE web based application. Over the last 6 years, I have been involved in Liferay portal development along with Java/J2EE application and Front End development. I am also having the about … more

    Looking for challenging Liferay portal development and Java/J2EE web based application. Over the last 6 years, I have been involved in Liferay portal development along with Java/J2EE application and Front End development. I am also having the about 2 years of experience in the Liferay portal development and customization. I have been working as Team Leader as part of the team in developing portal and SAAS application along with development work on few of the applications through which I have explored my self more as Portal Developer, Java/J2EE developer as well as UI developer. Portal Development & Customization - Liferay 6.0 and Liferay 6.2 Back End - Struts, Spring, Hibernate, Spring Security, Quartz Front End - HTML5, CSS3, jQuery and jQuery different plugins - jqGrid, Fancybox, DataTables, Timer, etc. UI Framework - Bootstrap  less

    java j2ee apache-struts spring-framework spring-security hibernate liferay javascript html html5 css3 jquery yui jsp ajax mysql 00 more less
    • $18.00 HOURLY RATE
    • 4.9
    • 5739 HOURS
    • INDIA
    • LAST ACTIVE
    • 9 PORTFOLIO ITEMS
    • 2 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • Software Engineer

    A professional Software Engineer with years of experience in: Web Development Web Services / RESTful Web Services Java / DropWizard / Spark / Hibernate Javascript / NodeJS / AngularJS Android Experienced with teaching OOP, Java & Software Engineering to undergraduate classes in university as well. I hope … more

    A professional Software Engineer with years of experience in: Web Development Web Services / RESTful Web Services Java / DropWizard / Spark / Hibernate Javascript / NodeJS / AngularJS Android Experienced with teaching OOP, Java & Software Engineering to undergraduate classes in university as well. I hope not to disappoint you.  less

    java rest php mysql javascript 00 more less
    • $16.67 HOURLY RATE
    • 4.7
    • 348 HOURS
    • IRELAND
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 1 TEST
  • C, C++, VC++, WIN32, MFC, QT, C#.net, VB, Interactive Broker, TWS API

    Technical Lead, hands on experience of 10+ years in software development. Expertise in application development using C, C++, VC++, WIN32, MFC, C#.net, VB, DirectX , Barcode, Multithreading, Shell Script, Perl Script, Pervasive BTRIEVE, IBM Web Sphere MQ, Oracle, Sybase on … more

    Technical Lead, hands on experience of 10+ years in software development. Expertise in application development using C, C++, VC++, WIN32, MFC, C#.net, VB, DirectX , Barcode, Multithreading, Shell Script, Perl Script, Pervasive BTRIEVE, IBM Web Sphere MQ, Oracle, Sybase on Windows, Unix and Linux platforms. Expertise in the ares of Image Processing, Industrial Automation, Finance domain, Middleware & client server communication. Expert in building applications using Interactive Broker TWS APIs.  less

    c++ c c# microsoft-visual-basic mfc java embedded-linux qt ibm-websphere sql 00 more less
    • $27.33 HOURLY RATE
    • 4.6
    • 349 HOURS
    • INDIA
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 8 TESTS
  • .Net/Java Developer | IT PRO

    High skilled developer in wide range of technologies which allow to build full and the best solution depending on customer requirements. Oriented for long-term cooperation for projects from scratch/"have only specifications" stages. Have abilities to build a team with … more

    High skilled developer in wide range of technologies which allow to build full and the best solution depending on customer requirements. Oriented for long-term cooperation for projects from scratch/"have only specifications" stages. Have abilities to build a team with up to 3 senior/middle developers during a few hours. Experience includes : -- Back-end: - Java / Java EE, JCF, Multithreading, JDBC, JSP, Hibernate - .Net / C#, ADO.NET/Entity Framework, ASP.NET MVC, RESTful API - Grails / Groovy -- Front-end: HTML, CSS, JavaScript/JQuery -- Hosting: Windows Azure, GlassFish. IIS, Tomcat -- Additional background : - Server technologies / AD DS, DNS, Hyper-V, IIS, DHCP, VPN, PowerShell. - Computer science, Artificial Neural Networks, common math and physics.  less

    c# asp.net-mvc ado.net windows-azure java windows-administration virtualization powershell artificial-neural-networks network-administration 00 more less
    • $20.00 HOURLY RATE
    • 4.9
    • 34 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 5 TESTS
  • Microsoft Certified C#/ASP.NET/J2SE Senior Developer

    My total experience in software developing around 11 years. During this period I have developed a wide range of project using HMTL, ASP.NET, Java and MS SQL Server including applications for small businesses. Also during this years I got … more

    My total experience in software developing around 11 years. During this period I have developed a wide range of project using HMTL, ASP.NET, Java and MS SQL Server including applications for small businesses. Also during this years I got a experience of read and understand "other people's code" and refactoring of badly written code. Also I can provide wide range of services: - estimation of projects - build projects from the ground up for you or your business - support of existing projects (including badly written project) - optimization Using technologies, frameworks and libraries: - .NET (C#, ASP.NET, ADO.NET) - Java (J2SE, J2EE) - Javascript (jQuery) - HTML - XML - XSLT - JSTL - MVC framework - Azure - Mandrill - WinForms - multi-threading (.NET and Java) - LINQtoSQL - NHibernate/Fluent NHibernate - Razor - PdfLib - iText/iTextSharp - jUnit/nUnit - Log4j/Log4net - Elmah (Error Logging Modules and Handlers for ASP.NET) - Aspose (Word, Cells) - Chilkat - Xero - Amazon Web Services - Betfair API - DevExpress - MSBuild - Ant Databases: - MS SQL Server (including T-SQL, stored procedures, synchronization/replication, export, import) - PostgreSQL - MS Access - SQLite - db4o - MySQL Version Control: - Subversion - Git - CVS  less

    .net-framework asp.net c# ado.net java j2se javascript jquery html xml xslt jstl asp.net-mvc spring-framework windows-forms-development multithreaded-programming linq linq-to-sql razor-template-engine adobe-pdf pdf-conversion itextsharp log4j xero amazon-web-services amazon-s3 devexpress apache-ant sql t-sql sqlite mysql svn tortoise-svn 00 more less
    • $27.78 HOURLY RATE
    • 4.9
    • 19952 HOURS
    • RUSSIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
    GROUPS:
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