Browse Core Java job posts for project examples or post your job on Upwork for free!

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, 394 Core Java projects are completed every quarter on Upwork.

394

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 4.70.

4.70
Last updated: July 1, 2015

Popular Core Java Searches

Clear all filters
  1. Fernando R.

    Fernando R.

    Ruby on Rails Developer with Strong Linux Background

    United States - Last active: 07/03/2012 - Tests: 3 - Portfolio: 1

    Very proficient RoR Web developer with a strong Linux/Unix background. Located in Florida, USA I work on EST timezone, allowed to work legally in the USA, I can attend to meetings, receive and make calls worldwide, as my customer you will be provided with a direct line to contact me if necessary. Over 11 years of experience on the IT industry, mainly working for major 500 Fortune US companies such as Cisco Systems, LexisNexis, Sun microsystems and others. My focus is always to keep things as simple as possible and make stuff better. Relevant skills : - Ruby on Rails 3 - Authorize.net , Credit card systems - RSpec , Capybara ( Testing ) TDD - Memcache - C ANSI - Linux / Unix (Solaris) - Shell scripting - Unix power tools: vi,awk,sed,bash,truss,top,strace,tcpdump,iptables.. - Capistrano - Amazon EC2 and Clouding computing. - VPS (Heroku, SliceHost, DreamHost) - Git Collaboration tools and extras that we offer to our customers : - US Phone number landline and cell phone - Skype. - Outlook Calendar (Exchange server) - EST U.S timezone, Located in Florida, near by major airport (FLL) - Fluent in English, Spanish and Portuguese (Spoken and Written) Don't hesitate to contact me if you have any questions.

    $33.33 /hr
    157 hours
    5.00
  2. Mohammed Feroz

    Mohammed Feroz

    j2ee java spring struts grails android hibernate jquery ajax

    Bangladesh - Last active: 3 months ago - Tests: 1 - Portfolio: 1

    I have experience in working in ERP project on Micro finance & Accounting system on Groovy and Grails. My position is team leader and sr. software engineer in the project. In the project I also did many complex usage of jquery/ajax/json. Beside this I have created many component for use and reuse of data processing. I have also worked with gant script to build custom command, and have created plugin for a custom Action artefact to use for the application. Beside groovy & grails, I have also worked with spring and struts

    $10.00 /hr
    97 hours
    0.00
  3. Parveen Kumar Raina

    Parveen Kumar Raina

    Expert Software Developer with Dot Net,C#,ASP.Net, Java and PHP skills

    India - Last active: 4 months ago - Tests: 1 - Portfolio: 4

    I'm a senior Dot Net Developer with extensive experience in building High Quality Sites and Software. My experiences range from building responsive mobile sites that work well cross-browser to building scalable sites for the any industry. I like working on projects with a team that cares about creating beautiful and usable interfaces and having My aim is to deliver software development solutions in excellent quality that will surely satisfy clients which will lead to fruitful partnerships. It's important to me to build long term relationships with clients, so I'm primarily looking for long term projects. I'm flexible with my working hours and am happy to work closely with any existing freelancers you work with. I look forward to hearing from you!

    Groups: Microsoft Certified Professionals

    $15.00 /hr
    21 hours
    0.00
  4. Jason M.

    Jason M.

    Software Developer

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

    Good Technical Fellow who can handle the most difficult jobs across diverse product family and technology library. My previous jobs include software performance optimization, software engineering process design and management. Above 8 years in direct hands-on coding. My skills include great software development practices and tools, including Virtual environments, Source control, Remote development, Issue tracking , Build , Packaging and test automation. Develop both desktop and Web applications using advanced technologies , which include : Java/J2EE, XML , XMLSchema, J2ME , Cocoa , Objective-C , UI Components with Swing /AWT, Web Frameworks such Hibernate,JSF,Struts... Mobile Developer : iOS Recent Application: Property Appraisal Applications for iPhone and iPad

    $30.00 /hr
    88 hours
    4.97
  5. Minh N.

    Minh N.

    Experienced Java Developer

    Vietnam - Last active: 20 days ago - Tests: 2

    - Over twelve years' experience in software development using JAVA. - Strong experience in the analysis, design, development and implementation of web applications using JAVA frameworks. - Strong experience in databases: MySQL, PostgreSQL and Oracle. - Strong skills included Java/JSP/Servlet, JavaScript/HTML/CSS, GWT, Spring, Hibernate, Tapestry, Struts. - Good knowledge in Android programming. - Good knowledge in other programming languages such as C/C++, C#, PHP and Erlang. - Good English in communication skills. - Worked as a team leader in both independent and inter-dependent environments.

    $20.00 /hr
    41 hours
    5.00
  6. 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
  7. Kushal Kumar

    Kushal Kumar

    Expert Web Developer Asp .net MVC and Share Point,

    India - Last active: 1 day ago - Tests: 2 - Portfolio: 2

    Hi Welcome to my Profile I am Associate Software Developer, Expert in Software, Web and Mobile Application development. I am great in making END to END applications(Full Applications from start to end) for this i am expert in project management and making project Architecture. please read my knowledge as following. I am specialist in Logic Making in any of Language suppose in C#, Asp.net, Java, PHP. But Fore most i use Microsoft .NET Framework(asp.net) with C#/ MVC 4.0 Razor/Aspx to work on most of Web Application. For Back End I am expert in MSSQL Server 2008, 2008 R2,2012, 2014 and MySQL. Last and for Most important thing to make a web application is Designing that is also a part in which i am having expert knowledge. I am great in working with HTML5, css3, Jquery , Java Script if need Angluar.js Knockout.js and more. I strictly write very Clean code using various of Comments and Re-usability of code so that even if some other developer needs to work on the work i have done he/she feels good while working. Thank you

    $16.00 /hr
    25 hours
    5.00
  8. Mauricio Offermann Palma

    Mauricio Offermann Palma

    Computer Engineer

    Chile - Last active: 1 day ago - Tests: 2

    I'm a Computer Engineer , during my career I have worked managing , designing and developing custom web applications for clients of different nature and in many different languages, but definitely my biggest strength is Salesforce APEX. My experience divided into three areas: Project Management We perform planning activities in the short term , while maintaining excellent communication with the customer , give daily reports on the progress of the project which include the activities performed, the problems encountered and the proposed solutions . Application Design Often the technical details make a big difference in implementation , which is why I worry about guiding the client presenting the best solution strategies , considering important issues such as security of information, the application performance , use of resources , the way they behave in the future scenarios with massive data loads or increased volumes of information. Software Development I believe that application development is my strongest skill have much experience in various languages ​​such as Java, C # or Ruby , mainly oriented web solutions , management naturally javascript ( including jQuery ) , CSS , JSP , HTML . Have special ability to manage MySQL , PostgreSQL , SQL Server and more databases. However, the last 7 years I have specialized in developing applications on the Salesforce CRM . These applications include design , process automation , configuration , workflows , validation rules , triggers, Visualforce pages, Apex classes and components . In addition to integrations with other systems using webservices and bulk batch .

    $40.00 /hr
    1,349 hours
    5.00
  9. Roman G.

    Roman G. Agency Contractor

    Senior android developer

    Ukraine - Last active: 24 days ago - Tests: 10 - Portfolio: 5

    My name is Roman. Currently I’m a Senior Android developer in Yalantis. I’m developing applications in a huge variety of spheres (social, scientific, augmented reality, internal company applications, media, ndk, etc.). I have an experience building server side app (using Java EE, & NodeJS) as well as websites. I have extensive experience in development for wearable devices such as Google Glass and Android Wear I have strong experience working with: - Media (audio & video processing) - NDK (c++ NDK development) - Custom views & animations - Chats (using socket.io & xmpp protocol) - Augmented reality (OpenCV) - Rich UI interface - Payments (paypal, stripe, braintree) - Camera (video/photo capturing, effects) - BLE (iBeacon devices) Feel free to request a quote for your project :-)

    Associated with: GlassTeam x70

    $40.00 /hr
    272 hours
    5.00