Core Java Developers & Programmers

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Core Java Job Cost Overview

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

Upwork Core Java Jobs Completed Quarterly

On average, 407 Core Java projects are completed every quarter on Upwork.

407

Time to Complete Upwork Core Java Jobs

Time needed to complete a Core Java project on Upwork.

Average Core Java Freelancer Feedback Score

Core Java Upwork freelancers typically receive a client rating of 4.68.

4.68
Last updated: May 1, 2015

Popular Core Java Searches

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  1. Richard Windsor

    Richard Windsor

    Highly qualified and experienced UK based software developer

    United Kingdom - Last active: 1 day ago - Tests: 6 - Portfolio: 5

    I've been developing software as an employee and as a freelancer for over 15 years for a broad variety of applications from hardware drivers to high level multimedia systems. I've also been lucky enough to work in an industry that combines coding with media design so I am able to manage all aspects of a given job. I'm currently working with companies to build internet and intranet applications that improve their workflow efficiency. I develop bespoke applications from the ground up which allow the client to work as they desire rather than them having to conform to off the shelf software. My prefered development languages are PHP, XHTML/CSS, and SQL, although I'm also proficient in Javascript/AJAX, C++, and all forms of less savory HTML. On the media side, I am proficient at video editing, 3D modelling, animation, and image manipulation using a variety of software. I have worked with TV and film companies as well as being a TV studio manager responsible for all aspects of programme production.

    $54.99 /hr
    2,076 hours
    4.98
  2. David L.

    David L.

    Senior J2SE/J2EE, Javascript developer, Dojo Expert, AngularJS.

    China - Last active: 16 hours ago - Tests: 3 - Portfolio: 2

    Over the last 8 years, I have developed a wide range of web applications using Java, J2EE, WebService, Applet, HTML, DHTML, Javascript and MySQL, MSSQL, Oracle . I am seeking opportunities to build websites from the ground up for you or your business. Technical Skills: - Java - Core Java, J2EE - JDBC, JTA, JMS, Java Servlet, JSP - Web Services, XFire - Struts, Hibernate - JavaScript - Dojo Toolkit - Extjs - jQuery - AngularJS I also have some experience in the following areas: DOJO, SQL, Ajax, OOP, and software design and testing.

    Groups: Crossrider

    $55.56 /hr
    3,806 hours
    4.87
  3. Victor V.

    Victor V.

    Java/J2EE/ SQL / Software Architect/ Sencha Extjs Developer/ AngularJs

    Russia - Last active: 16 hours ago - Tests: 5 - Portfolio: 2

    ✔ Java, J2EE, Spring (MVC/Security/Rest), JSF, Hibernate, Hibernate Search(Lucene), JSP, JSTL, Apache Tomcat ✔ MySQL, Oracle, PostgreSQL ✔ Javascript, AngularJS, doT.js, Sencha(Extjs 4.x), jQuery ✔ HTML5, CSS3 ✔ SVN, GIT I'm an experienced Java programmer with solid principles in programming, architecture and code quality. Working in web development for over 7 years I gained considerable experience in building business solutions using such languages as Java, Javascript(ExtJs, JQuery), SQL, Bash-scripting, HTML5, CSS3. Over the last four years I have been working for such companies as "Firejack Technologies", "Bank of America", "Millenial Media" etc, so i gained considerable experience in the designing of web applications architecture. I like to learn new technologies, frameworks etc, so research projects will be also interested for me.

    $35.00 /hr
    6,068 hours
    5.00
  4. Ashish Kumar

    Ashish Kumar

    Java,SOA,Mule ESB ,Hadoop,Jenkins,Spring,Cassandra,MongoDB

    India - Last active: 3 days ago - Tests: 4

    Developed wide range of websites using Server Side Technologies :- Java,J2ee,Spring (Spring AOP, Spring Dependency Injection, Spring MVC,Spring Security,Spring WebServices, Spring Social ), Hibernate, Struts 2, MULE ESB . Spring -Jersey REST. Client Side Technologies Extjs 4. Sencha Touch 2, Jquery 1.7 , Dojo .HTML 5 , Css3 , Ajax . Databases :- NOSQL :MongoDB , Cassandra PLSQL : Oracle , Mysql, Sybase Cache : Ehcache , Memcache and Gemfire JMS & AMQP : (Active MQ , Rabbit MQ , QPid ) SOA : Service Oriented Architecture using Spring BPM : JBPM and Drools Testing Mockito , Spring JUnits , JMOCK , Cucumber. Continuous Integration : Jenkins Version Management :- SVN , CVS and Git hub Server :- Tomcat , JBoss and IBM WAS Data analytic and Management : Hadoop and Big Data My core competency lies in complete end-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.

    $50.00 /hr
    3,422 hours
    4.89
  5. Alexey Dubrov

    Alexey Dubrov

    Java Solutions Architect

    Belarus - Last active: 16 hours ago - Tests: 2

    High skilled Java Developer. My specialization is web/backend development using such technologies as Hibernate, Spring (MVC, Security), JSP/JSTL, Tomcat, JavaScript/JQuery, Maven, RESTful API, Web Services (SOAP). Any desktop (using Swing) development also can be provided as well as utility program development and multi-threaded systems. I'm looking for customers for a long-term cooperation. I would like to offer you my skills and expereince to solve your issues.

    $38.89 /hr
    1,437 hours
    5.00
  6. David M.

    David M.

    Expert Excel VBA/C# Developer and Oracle-Certified Java Programmer

    United States - Last active: 16 hours ago - Tests: 7 - Portfolio: 2

    I'm an expert Excel VBA/C# Developer with over 6 years of experience in developing Excel Macros, Add-Ins and Advanced Spreadsheet Applications. I can streamline your reporting, automate your spreadsheets, as well as create full-scale dashboard applications and powerful add-ins. I have tested within the top 30% of all VBA Programmers, as well as within the top 20% in Microsoft Excel on oDesk's sister site, Elance.com. I am also an Oracle Certified Java Programmer with experience in Finance, Statistics, Game Development, Data Analysis and Application Development. Tested as above average in knowledge of the Java SE7 programming language among certified Java Programmers on oDesk.com. I am skilled in Visual Basic for Applications (VBA), testing within the top 30% of all VBA Programmers, as well as within the top 20% in Microsoft Excel on oDesk's sister site, Elance.com. I have experience in Macro Development and Excel Add-In Development such as Web Scraping and Advanced Automation and Calculation for numerous uses, utilizing C#. Over 6 years of Programming experience. Responsible for developing highly sophisticated Excel Spreadsheets for High Profile Banking Transfer Agency, increasing productivity in that area by over 90%. I enjoy what I do.

    $72.22 /hr
    845 hours
    5.00
  7. Bigyan Shrestha

    Bigyan Shrestha

    Software Engineer

    Nepal - Last active: 1 month ago - Tests: 4 - Portfolio: 2

    I have 2+ years experience in software development as a Software Engineer. * Languages: Java, PHP, Common LISP, C/C++, python * OS: Linux (Redhat, Debian), Windows * Databases: MySQL,Oracle, MsSQL, SQLite, Berkeley DB * Miscellaneous: # HTTP, SOAP, Web services # JBoss, Apache Tomcat, Slide (WebDAV) # Ant, Maven, Bamboo, SVN, CVS, GIT ** Specialties: Research, design, development, and testing of enterprise and desktop applications. Release engineering and tools development more info: http://np.linkedin.com/in/bigee

    $44.44 /hr
    13 hours
    4.94
  8. Anuradha Gunasekara

    Anuradha Gunasekara

    Java Software Consultant

    Sri Lanka - Last active: 2 days ago - Tests: 1

    - a Java Client/IDE Tooling 8*-development experience, Including both *Netbeans and *Eclipse Platforms. - a Passionate and dedicated open-source contributor. - Specialised in integrating technologies together. - a Professional certifications from Sun Microsystems on Java Technologies. - a Sun Microsystems/NetBeans Innovators Grant Gold Award Medalist http://netbeans.org/grant/ Specialties: Java SE/EE, Open Source, Netbeans RCP/Swing, Eclipse RCP/SWT/RAP,RAP,OSGi, Maven, Tycho,IDE Tooling., Task-focused interface,EMF,JavaFX, M2T(Acceleo),

    $35.00 /hr
    283 hours
    5.00
  9. Pedro Tavares

    Pedro Tavares

    Java | GWT | Spring | Mobile Cloud Consultant

    Ireland - Last active: 14 days ago - Tests: 2 - Portfolio: 1

    Pedro is a Java/J2EE/JEE Consultant end-to-end Developer and Architect with over 15 years experience, in sectors such as Healthcare, Telecoms, Banking/Payments and the Public Sector. Master in Java, in the top 5% as tested by Smarterer.com Expert in Spring, top 10% http://smarterer.com/PedroTavares Also on: linkedin.com/in/pedroalexandretavares Pedro has experience across the full Software Development Life Cycle (SDLC), being an enthusiast of Lightweight/POJOs design, Agile Methodologies, SCRUM and Test Driven Development (TDD).

    $40.00 /hr
    6 hours
    5.00
  10. Artem Bogush

    Artem Bogush Agency Contractor

    Android/iOS Reliable Products Development

    United Kingdom - Last active: 1 day ago - Tests: 4 - Portfolio: 13

    oDesk VERIFIED --oDesk has recognized me as one of their top Mobile Developers. I'm glad to have an opportunity to provide my best to help people come their ideas to live with committing all the experience I have in technical and communicative aspects. Contact me If you are looking for a reliable developer who will care about your project as his own and for someone who knows how to implement your idea in a stable and scalable way. I'm open to discuss the details so you can decide if I'm really the right person you've been looking for. I'm passionate code architect. I'm doing programming for more than 6 years. Deep and versatile experience in Java language as well as Android development in which I'm enthusiastic expert for already more than 4 years. My another passion is Objective-C and iOS development where I've build a number of successful applications as well. Сreating stable, structured, and maintainable products for clients. This is what is crucial for project's evolving on technical level which I'm responsible for. It is very important paradigm which should be followed during all the development lifecycle. I think code quality must be on a priority list while delivering products to customers. This basic and simple idea always helps to focus on the main work achieving goals in a shorter terms which in the end helps to save customer's time and budget. I'm always trying to build an open business relationship at the very beginning of cooperation as it helps to create a stable contact and efficient partnership which in the end leads to better understanding of customer's needs and requirements allowing to achieve high performance. A brief list of skills and technologies covered: 1. Android app development 2. Java programming 3. iOS (iPad, iPhone) app development 4. Objective C programming 5. Wearables 6. Parse 7. Advanced asynchronous flows covering/multi-threading 8. Complex custom control building. 9. Complex home screen widgets developing. 10. SQLite database managing/data persisting 11. OpenGL-ES programming with shader language (HLSL) 12. Http, XMPP, json 13. Push notifications 14. Interprocess communications (IPC) 15. Work with wide range of device's modules/sensors (GPS, gyroscope, etc.) 16. Social networks integration 17. Google maps integration 18. Advanced experience in supporting of wide range of different device types - tblets/phones with all possible resolutions and screen configurations 19. Supporting application localizations 20. Security tools 21. NDK development

    Groups: Application Developers Alliance

    Associated with: php-professional

    $45.00 /hr
    895 hours
    5.00