Senior Java Developers & Programmers

Showing 36,390 freelancers

Senior Java Developers & Programmers

Showing 36,390 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

  • Not Another Java Programmer

    During the last years, I have been working as an employee as well as an academical student/researcher with J2EE Web and J2SE stand-alone environments. During the last year I worked for PSL (www.psl.com.co), CMMI level 5 … more

    During the last years, I have been working as an employee as well as an academical student/researcher with J2EE Web and J2SE stand-alone environments. During the last year I worked for PSL (www.psl.com.co), CMMI level 5 company qualified for their good practices and awarded with the Software Process Achievement Award by the IEEE and the SEI (Software Engineering Institute). In PSL I developed some modules for a large Web proyect called Impacta, sold to a important motorcycles assembler in Colombia. Impacta is a Web application module that communicates with the company's ERP through Web-services, it has a multi-layer arquitecture that supports a with a CRM like functionality. Impacta uses JSF(Java Server Faces) for its presentation-layer, along with Ajax, in its business-layer uses pure Java integrated with Spring and Web- Services(Xfire) and in its persistence-layer, a PSL's propietary persistence framework was used against an Oracle DB.  less

    java sql javascript ajax j2ee 00 more less
    • $25.00 HOURLY RATE
    • 5.0
    • 2521 HOURS
    • COLOMBIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 6 TESTS
    ASSOCIATED WITH:
  • Expert Java J2EE Developer

    I am an expert Java J2EE developer with 9 years of coding experience I provide outsourced services for Java, J2EE and Angular JS. I can handle a project from requirement gathering, analysis, design, coding (both backend and frontend), Junit Test … more

    I am an expert Java J2EE developer with 9 years of coding experience I provide outsourced services for Java, J2EE and Angular JS. I can handle a project from requirement gathering, analysis, design, coding (both backend and frontend), Junit Test cases and automation tests. Project Experiences: Yayo is an eCommerce platform stitched specifically for the needs of Film Production Companies. I have designed and developed API's for both mobile and Partners, built a portal for Production Company Managers. Involved in the development of a project Moose, which uses GWT and Sencha GXT. Also implemented Full Text Search in GAE by providing an objectify kind of framework. Designed and developed Sentinel project, which provides Guest Access Portal. Used Free Radius and Jradius modules to authenticate dynamically generated Guests. Sentinel has 3 modules, Admin Portal, Sponsor Portal and Guest Portal. Paladin MultiOS is a Wireless security deployment platform and device tracking/management platform. It provides a reliable and affordable solution for deploying and monitoring secure networks in the age of BYOD. This is deployed on Amazon EC2 linux with tomcat as web server. Eostis is one of the leading classifieds website in France. I have worked to move eostis from the old legacy system to Google App Engine and made it survive from the maintenance issues and frequent server deeds. Involved in the development of several live online projects like http://www.theflowerexpert.com , http://www.pickupflowers.com , http://www.giftsnideas.com and http://www.flowersforcelebrations.com. Migration of a legacy ehealth tool to web application (Central Configurator) by using Spring, Hibernate, Web Services and Ibatis. Migration of a command line tool to GWT + EXT GWT web application. Provided a Command Line Interface for a web application by using Web Services. Google App Engine Projects: Converting SAP reports from email attachments to google spreadsheets. Developed a GAE + Vaadin application for a sales company to maintain there whole inventory.  less

    java j2ee google-app-engine google-apps google-spreadsheet 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 3411 HOURS
    • INDIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
    ASSOCIATED WITH:
  • Eng., Msc

    Over the last 19 years, dedicated to developing a wide range of web and desktop applications using Java, Visual Basic, C# and PHP for medium bussines, banks and Paraguay goverment. Usually, I prefer to manage the full application life cycle … more

    Over the last 19 years, dedicated to developing a wide range of web and desktop applications using Java, Visual Basic, C# and PHP for medium bussines, banks and Paraguay goverment. Usually, I prefer to manage the full application life cycle. With strong knowlodge in Oracle, Postgresql and SQL Server procedural languages. Also done mission-critical telecomunication applications, such as billing systems mediation device and real time calls ticket audit. With strong C and database API management. I have implemented Business Intelligence with Pentaho in various government agencies. Interested in System Design and Development, Maintenance of Existing Web and Desktop Applications, Processing and Bulk data load, Database Administration and Software Testing.  less

    java microsoft-visual-studio c oracle-database postgresql mysql pentaho c++ jboss jboss-seam jbpm data-warehousing software-testing linux-system-administration unix-system-administration 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 2256 HOURS
    • PARAGUAY
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Enterprise Java/JEE Architect

    I have been designing and developing enterprise business application using Java EE, Spring, Hibernate, GWT, JSP, JSF, Oracle/MySQL, PHP, JavaScript, Eclipse RCP etc for more than 10 years. I have worked in desktop application, server side programming and web … more

    I have been designing and developing enterprise business application using Java EE, Spring, Hibernate, GWT, JSP, JSF, Oracle/MySQL, PHP, JavaScript, Eclipse RCP etc for more than 10 years. I have worked in desktop application, server side programming and web technologies. I worked as individual and also acted as team manager. I am looking for opportunities where I can leverage my experience and knowledge to deliver best quality software in terms of design, code and usability.  less

    jasperreports eclipse gwt mysql javascript ibatis hibernate java spring-framework spring-security j2ee linux-system-administration jquery ajax maven velocity-template-engine freemarker 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 128 HOURS
    • BANGLADESH
    • LAST ACTIVE
    • 3 PORTFOLIO ITEMS
    • 12 TESTS
  • Java Architect/Senior Developer

    Oracle certified Enterprise Architect and the Scrum Master. More than nine years of the Java experience gained in 15 different projects. Being able to establish and lead a highly productive agile team. Managed teams of up to 12 developers. Always … more

    Oracle certified Enterprise Architect and the Scrum Master. More than nine years of the Java experience gained in 15 different projects. Being able to establish and lead a highly productive agile team. Managed teams of up to 12 developers. Always try my best to simplify and improve application design and architecture. A Java technical lead with an expert knowledge of j2ee, j2se, computer algorithms and math. Also can't help mentioning about a solid background in OOP, high scalable applications design, performance optimization and multi-threading.  less

    java mysql 00 more less
    • $27.78 HOURLY RATE
    • 5.0
    • 0 HOURS
    • UKRAINE
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 5 TESTS
  • Senior Front-end and iOS Developer

    I am a computer science enthusiast, What I really want is to work at different areas, try and master new technologies, work with supportive teams and gain different types of experience. I love to do all sort of things and … more

    I am a computer science enthusiast, What I really want is to work at different areas, try and master new technologies, work with supportive teams and gain different types of experience. I love to do all sort of things and use all sorts of technology playing different roles in different team. But when it comes to Front-end or iOS development, I really make wonders. Fields of interest: Ruby On Rails SASS HAML GruntJS Coffeescript Bootstrap/Foundation Foundation PHP NodeJS Wordpress iOS Development  less

    css jquery javascript java php python html5 ruby-on-rails 00 more less
    • $27.78 HOURLY RATE
    • 5.0
    • 360 HOURS
    • EGYPT
    • LAST ACTIVE
    • 8 PORTFOLIO ITEMS
    • 4 TESTS
  • Expert Web App Developer & Manager

    Over the last 7 years, I have developed a wide range of websites using the below technologies, Front-end: HMTL5, Flex, jQuery, jQuery-Mobile, javascript, BootStrap, Foundation, Canvas Libraries Back-end: Java, Spring, Struts, iBatis, BlazeDS, Php, Magento, Yii Mobile App: Phonegap Database … more

    Over the last 7 years, I have developed a wide range of websites using the below technologies, Front-end: HMTL5, Flex, jQuery, jQuery-Mobile, javascript, BootStrap, Foundation, Canvas Libraries Back-end: Java, Spring, Struts, iBatis, BlazeDS, Php, Magento, Yii Mobile App: Phonegap Database: MySQL & MS-SQL Scripting: Perl, VB Script Other Expertise: Optimizing SQL query & web pages for performance, VB Macros My core competency lies in complete end-to-end management of the Project, and I am seeking opportunities to build websites from the ground up for you and your business. I have experience in the following areas: Online Designing Tool, Real-Time Data Push, Mobile App Development  less

    java sql javascript jquery adobe-flex spring-framework ibatis mysql css microsoft-excel actionscript-3 vba twitter-bootstrap yui css3 blazeds 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 821 HOURS
    • INDIA
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 6 TESTS
    GROUPS:
  • Android, Embedded, C/C++, Java, Dot net

    Over the last 7 years, I have developed a wide range of products for my company. My core competency lies in complete end-end management of a project. And I am seeking the new opportunities to build Android application or other … more

    Over the last 7 years, I have developed a wide range of products for my company. My core competency lies in complete end-end management of a project. And I am seeking the new opportunities to build Android application or other application from the ground up for you or your business. My foundation is as a developer, in multiple languages, on many platforms. I have more than 7 years experience on developing Android from Application layer to Linux kernel layer. I can develop well the new application, new component of android or customize them. I have deep knowledge on Android platform since android 1.5, from application layer to linux kernel. I used to develop: + driver on android platform such as dma, spi, iic, ... + sensor sub-system for Android platform. Some sensors I used to develop are accelerometer, magnetometer, gyroscope, ambient light, proximity, pressure sensor.. + add new library on library layer such as ffmpeg, ... + and many other applications (Please refer http://www.mediafire.com/file/kboxu1zak8qi9ar/Android%20demo.zip for more detail!). Currently, I'm a technical leader, senior engineer of Renesas Corporation. If you want to know more detail about my company, please visit www.renesas.com.  less

    android-app-development java c c++ 00 more less
    • $30.00 HOURLY RATE
    • 5.0
    • 4726 HOURS
    • VIETNAM
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 5 TESTS
  • Senior Software Developer

    System Analyst/Developer with 9 years of solid experience from high to low complexities software projects. Dedicated professional that see opportunities in difficult situations like challenges. Worked with different kinds of web-based, standalone and distributed software projects that some required … more

    System Analyst/Developer with 9 years of solid experience from high to low complexities software projects. Dedicated professional that see opportunities in difficult situations like challenges. Worked with different kinds of web-based, standalone and distributed software projects that some required an advanced technical skill at a fast-paced environment. With natural leadership, learning/sharing knowledge, proactive, team player, hardworking and organized professional with great attention to detail. In addition, high problem solving and refactoring skills, believe in a simplistic and emergent software design and high experience with Java J2EE and SOA technologies. Strong analytical, problem solving and debugging skills. High skills of logical programming, object-oriented analysis, good practices and design patterns. Expert in Java J2EE technologies (JSP, EJB, JMS and Web Services) and related frameworks. Solid knowledge of GoF and JEE design patterns. Solid knowledge of Java Application Servers (JBoss AS, Websphere and Tomcat). Solid experience with planning load testing and profile analysis (JMeter, JProbe, SoapUI, LoadUI). Solid experience with Version control systems and configuration management practices (Git, SVN). Good knowledge of Data and Design Modeling (Enterprise Architect, PowerDesigner, Astah). Solid experience with Modular Architectures Software Designs (Maven 1 and 3). Good knowledge of RDBMS Enterprise Databases (Oracle and PostgreSQL). Good knowledge of action and component web based facing Java frameworks (JSF, GWT, Struts). Solid knowledge of persistence frameworks (Hibernate, JPA and JDBC). Good experience with implementing SOA solutions (JBoss ESB). Good experience with desktop interfaces programming with Java Swing and JavaFX. Solid experience with IDE (Eclipse, IDEA Intellij, Netbeans, MS VisualStudio). Programming languages: Java, Javascript, PL/SQL, C/C++, C#, ASP.NET and Groovy. Good experience with Jira and Redmine.  less

    software-qa-testing javascript php java spring-framework jboss-seam jsf 00 more less
    • $25.00 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • BRAZIL
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
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