Top Upwork Freelancers

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  1. Andrey Chorniy

    Andrey Chorniy Agency Contractor

    Senior Java (JEE and Android) Developer

    Ukraine - Last active: 4 days ago - Tests: 3 - Portfolio: 7

    During my 11 years experience I've worked with a lot of java technologies and frameworks, performed a lot of refactorings and system re-deisgns and application performance tuning. My latest experience include application development for Android platform and web-applications with Java/Jboss-Seam/JSF/Hibernate/Spring. System integration with CMS systems like Alfresco, Artesia (OpenText) I have strong background in application performance tuning. Follow the best OOP principles and Design-Patterns. I also have an experience in developing information retrieval systems, datamining, textmining, evolutionary/genetic algorithms. I'm looking for challenging Java/JEE/Android projects.

    Groups: Android, Sun Certified Professionals

    Associated with: Texus

    $30.00 /hr
    2,876 hours
    4.83
  2. Satyanarayan Y.

    Satyanarayan Y.

    Java/J2EE: Spring Framework, RESTful WS, JSF, Struts, Hibernate, MySQL

    India - Last active: 1 day ago - Tests: 12 - Portfolio: 5

    I have over 7+ years of work experience in Software Development Industry. ✔ Language:- Core Java, Advance Java, PHP ✔ Web Technologies:- Spring Framework, Spring MVC, JSP, Servlet, Struts, JSF, PrimeFaces, Hibernate, JPA, EJB, JDBC ✔ Web Services: REST API with Spring MVC, Java RESTful Web-Services with Jersey API, JAX-WS, JAX-RS, SOAP. ✔ Scripting Language:- HTML, JSTL, Java Script, Ajax, JQuery, CSS. ✔ Database:- MySQL, PostgreSQL. ✔ Web Server:- Tomcat, JBoss. ✔ Version Management Tools:- Visual Source Safe, SVN, Git. ✔ Development IDE:- Eclipse, Net Bean, Intell iJ. I have involved in wide range of website development using JSP, Servlet, Struts 2.x, JSF, Spring, Hibernate, RichFaces, PrimeFaces, JPA, EJB, Ajax, JQuery, Java Script, HTML, CSS and so on.. I am holding Sun Certified Java Programmer(SCJP) certificate. My core competencies lie in complete end-to-end development of any size application right from app development to DB design. Proven ability to develop multiple projects with medium to high complexity. Commitment to Quality work and on-time delivery. Our motive is to help customers to achieve their business objectives by providing innovative, best-in class IT solutions and services, which correspond to client's requirements for 100% or bit more...

    Groups: Crossrider, Sun Certified Professionals

    $15.00 /hr
    1,953 hours
    4.97
  3. Vishal T.

    Vishal T. Agency Contractor

    PHP/Jquery/AJAX/Mysql expert with 7+yr Exp.

    India - Last active: 1 day ago - Tests: 18 - Portfolio: 8

    I am an advanced level PHP Developer with over 7 years commercial experience. As a full time freelancer I am available for any job, large or small. I am used to working within tight timescales and provide excellent results every time and within budget. I have excellent communication skills and will endeavor to keep you in touch with every aspect of the development process. I have also established a reputation for thinking 'outside the box', so am more than willing to contribute ideas to your project if I can identify areas where functionality or commercial return can be improved. I have extensive knowledge working with PHP in an OOP / MVC environment and full working knowledge of client side languages and libraries including Javascript AJAX and jQuery and additional technologies such as SOAP, REST, XML and JSON. I also have a good working knowledge of JSP and Tomcat. I am used to working with 3rd party APIs including Twitter, Facebook and LinkedIn, together with the Google Map API, other Google APIs and ecommerce APIs such as Paypal, Google Checkout, SagePay, Worldpay and Ogone. I have worked on a number of e-commerce platforms including Magento, Virtuemart, Paypal and Google Checkout, ATG I have a good knowledge of HTML and CSS. I have worked with Wordpress and provided custom modifications to Wordpress websites. I have also worked on interfaces to SMS applications. I also have extensive experience with SEO and my clients regularly feature 'first page' on the major search engines. Please have a look at my profile for a selection of items from my portfolio.

    Groups: Sun Certified Professionals

    Associated with: Techy Minds Agency

    $22.22 /hr
    170 hours
    4.73
  4. irfan shahzad

    irfan shahzad

    PHP and Sun Certified Java Programmer

    Pakistan - Last active: 08/05/2014 - Tests: 6 - Portfolio: 3

    Over four years of development experience with sound knowledge of Object Oriented analysis and design principles. I have been actively involved in developing scalable enterprise application using Agile and TDD methodologies. using Java platform. Furthermore, I have been learning and experimenting with new technologies to expand my horizon and keep myself up-to-date with future trends.

    Groups: Sun Certified Professionals

    $16.67 /hr
    238 hours
    4.94
  5. Jayansh Shinde

    Jayansh Shinde Agency Contractor

    Apache Ofbiz, Java,Eclipse RCP, OpenGTS

    India - Last active: 1 day ago - Tests: 3 - Portfolio: 7

    Software developer and architect with 8+ years of experience in software industry. Proven record for achieving successful products – TransForm (Oracle forms to java) and TransRep(Oracle Reports to Birt).

    Groups: Sun Certified Professionals

    Associated with: Jaysan

    $22.22 /hr
    1,331 hours
    5.00
  6. Liviu E.

    Solaris/Linux Certified Administrator

    New Zealand - Last active: 09/23/2010 - Tests: 8

    In the last 5 years i have administered over 300 Solaris 8,9,10, RHEL and SLES servers including clustered environments using SUN Cluster and Veritas Cluster software. Also i have administered backup servers like EMC Networker 7.3 and Veritas NetBackup 5.x and used TSM as client side. I have experience with Solaris Volume Manager and Veritas Volume Manager used with SAN storage EMC Simmetrix and Clariion. I also have good shell scripting skills. Experience with VMWare,Sun VirtualBox,Sun containers and OpenVZ virtualization solutions.

    Groups: Sun Certified Professionals

    $22.22 /hr
    97 hours
    4.97
  7. Andriy K.

    Andriy K.

    Expert Android Developer

    Ukraine - Last active: 1 day ago - Tests: 8 - Portfolio: 30

    ✔ oDesk All-Star Freelancer Club member! ✔ oDesk Verified Mobile Developers Club member! ✔ oDesk Top Rated! ✔ Oracle Certified Professional - Java Over the last 4 years, I have successfully developed over 25 complex Android Applications from scratch on my own. My Java skills are confirmed by SCJP (Sun Certified Java Programmer), passed with 98% score. Excellent knowledge of Java and extensive experience in Android allow me to make quality and high-performance applications. Almost all applications and games that I made hit the Top 100 in the Nook Store, even a few hit the Top 10. Very good knowledge of OOP, OOD, Design Patterns, excellent problem solving and decision making skills. I have rich experience in the major components of Android, such as: - UI : Custom components, Fragments, Layouts, ActionBar, 2D Animations, Material Design, Dialogs, Menu, User Interaction(touches, gestures) - Core : Intents, Services, Receivers, Content Providers, Custom Adapters, Resources, Multithreading - Communication & Networking : HTTP, REST, Parse, Socket, JSON, XML, SMS, Bluetooth, Bluetooth LTE, iBeacon, NFC - Hardware and Media: GPS, Google Maps v2, Speech Recognition, Playing Audio/Video, Sound, Playing Sound Effects, Accelerometer - Persisting Data: SharedPreferences, Files, SQLite, Backup and sharing data - Interacting with System: Notifications, Alarm Manager, Timed and Periodic Tasks, Persistent Background Operations, Contacts, Calendar, Task Stack - Graphics: Canvas, OpenGL, OpenGL ES (libGDX) - Social: Facebook API, Twitter API, Google+ API, Foursquare API - Analytics: Woopra, Google, Localytics. I also have experience in developing Web Applications on J2EE platform. Core technologies and frameworks involved were Spring, Spring MVC, Hibernate, JPA frameworks; JSP, JDBC, HTML, XML, JSON, REST, JavaScript(jQuery, AngularJS), AJAX. My skills are confirmed by SCWCD (Sun Certified Web Component Developer) certificate.

    Groups: Sun Certified Professionals

    $44.44 /hr
    10,114 hours
    4.98
  8. Rida BENHAMMANE

    Rida BENHAMMANE

    Sr. Java Developer/Architect, Oracle Certified

    Morocco - Last active: 4 hours ago - Tests: 10 - Portfolio: 3

    I'm a senior Java/Jee developer/architect with +9 years of experience and Oracle programmer/developer certified (SCJP, SCWCD, SCBCD & SCJDWS). I'm well-versed in backend development as well as frontend development. In the backend, I have used plenty of Jee frameworks, from the core Jee APIs (EJB, JPA, JAX-WS, JAX-RS ...) to the other Jee frameworks (Spring, Struts, Hibernate ...). I have also done some Php development using raw Php, CodeIgniter and Laravel. In the frontend, I have been developing SPAs for about 3 years, using frameworks like Backbone and Angular and some other cool frameworks libraries like: jQuery, underscoreJS, requireJS ... Other skills that I'm also experienced in are: Unix/Linux scripting, SVN/CVS/Git versions control systems, Oracle/MySQL/PostgreSQL databases, ANT/Maven build tools, Tomcat web container, Apache web server ... In addition to my years of experience, I hold a engineering degree, in computer science.

    Groups: Sun Certified Professionals

    $111.11 /hr
    1,007 hours
    4.99
  9. Vaibhav Paliwal

    Vaibhav Paliwal Agency Contractor

    Java/J2EE Architect Cum Developer (AWS, MongoDB, Spring etc)

    India - Last active: 1 day ago - Tests: 11

    Over the last 6 years, I have developed a wide range of web applications using J2EE, Struts 1.x HMTL, Hibernate, Spring, DHTML, Java Script, Ajax, Jasper Report, Maven, SQL Server 2005 and MySQL and Selenium for Automation, including web applications for Indian Government, Private Organizations, Educational Institute. My objective is to utilize my experience and extreme interest in computer science in producing high quality result for my clients or employer. Here are some comments that I got from my previous Odesk clients: It was a pleasure to work with Vaibhav. A very serious freelancer with a huge potential in java architectures. Despite job complexity, Vaibhav did the best to analyse stress tests results and make performance better. I definitely recommand him for futur work. Just need more linux administration knowledge and he will be perfect. Perfect communication, very trustworthy, did everything on time, very happy to have hired him. Vaibhav did an excellent job again. Highly recommended professional, very clean code! Highly recommended contractor. Excellent Java Developer. High quality. Vaibhav did an excellent job! I'll surely hire him again. Very commited to deadlines and code quality. Highly recommended professional Very knowledgeable, it was a pleasure working with Vaibhav. Had a very strict deadline and managed to meet it. Produced work without needing anything apart from provided details from me. Vaibhav was a solid contributor - willing to take on additional responsibility. Technically sound and willing to learn new technologies.Would be happy to hire again. Very good developer. Excellent job Vaibhav FIVE STAR JAVA PROGRAMMER.Excellent competency and skills for the job, understanding of specifications/instructions.

    Groups: Oracle Certified Professionals, Sun Certified Professionals

    Associated with: Global Software Solution

    $50.00 /hr
    2,802 hours
    4.86