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2

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Average Oracle Java EE Freelancer Feedback Score

Oracle Java EE Upwork freelancers typically receive a client rating of 4.78.

4.78
Last updated: August 1, 2015
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  1. Narendra P.

    Narendra P.

    Android Developer

    India - Tests: 1 - Portfolio: 15

    If you are here looking for someone to develop Android applications and Android 2D Games for you, I might be the guy you need. I have experience every type of application for mobiles and Tabs in Android platform : Design UI (using xml and Java code), coding (Android game), Android database - (SQLite, Xml, File), NFC technique ...) I am skilled in designing Android UI for different screens in disciplined way and handling back end threads and web calls with proficiency. I have experience every type of Social media integration in Android platform. I am seeking opportunities to build Android applications from the ground up for you or your business. I am looking for Long Term business relationship. Thank you, Narendra Prajapati.

    $15.00 /hr
    0 hours
    0.00
  2. Ahmed CHAOUACHI

    Ahmed CHAOUACHI

    Software engineer

    Tunisia - Tests: 6

    Here I am, an IT Specialist now, with a great experience as a freelancer with the great Upwork site (previously odesk) and as Software engineer working for an International Group Company. I gained an interesting experience in many fields during my modest carrier such as : - Mobile Babking - Systems administration - J2EE Development - Mobile Banking - Big Data etc ... Over five years engineering study years, I has acquired a bunch of skills related to a variety of specialities in software Engineering : - I have developed many applications using different platforms and languages mainly JAVA and C#. As a lover of those two technologies, I am certificated in MS Foundation MCTS 70-536 with a of Score 976/1000. And for Java, I used many frameworks within the JEE technology such as HIBERNATE, SPRING, JSF, etc. - I have also good skills in PHP as I developed several websites for small businesses. I also used Symfony as one of the well known frameworks in this technology. And lately, I am specialized in Information Systems' Management and my experience started with idbuffet as my first client. I master currently different business softwares such as ZOHO, Sugar CRM, etc. I am also fan of Business Intelligence discipline and my favorite soft for this is TALEND. Well that's the updated version of me !

    $30.00 /hr
    467 hours
    4.77
  3. Alexandros Marnikas

    Expert Oracle Java Developer

    Greece - Tests: 1

    I started my professional career in Vodafone as Software Engineer. My team developed and maintained projects for the Vodafone’s network. We worked with SQL loader to load data in Oracle 8i. Within Oracle database i developed procedures and packages to create statistics for the traffic of Vodafone’s network at PL/SQL. Moreover one major fact was the development of the payroll application for the Greek public sector using Oracle 8i as database and Oracle Forms and Reports 6i for the presentation of the data. Additionally one major fact was the development of a new project in Intrasoft International for OLAF. The project manipulated the information provided by OLAF officers and the aim of the project was the calculation of the risks for the vessels and containers approaching the European coasts or passing the European borders. The database was Oracle 9i and ColdFusion was the Software for displaying data in Screens. At the second stage the application server was BEA Web logic 6 and Java (bean and servlet) to promote the data on the screens. I was the designer of the database using 3NF model designing index strategy, triggers using high SQL performance tuning. Also i was the developer of the project using PL/SQL Coldfusion and i assisted the implementation in Java. Also i developed projects using Java in Mediation system to implement the traffic going to Billing system. There were complicated rules for the billing system, selecting the correct data according to some characteristics receiving the correct tariffs. Also I had used retention policy in some cases to give priority in selection queries to create statistics (use of database as data ware house and business intelligence) and sometimes I gave priority in the completeness of the billing cycle (used as OLTP database) and in transactions. Another project I was involved was the reception of Web Services (concerning network results) transforming data using Json objects and passing them in jsp using Ajax. We used jQuery to display the data on screens (div, css and other html elements). During this implementation i solved problems concerning the various browsers and especially Internet Explorer (i have downloaded Development tools to have in screens all Internet explorer versions) and for this reason i used jQuery which gives the opportunity to work all the html elements in all browsers including Internet Explorer. Nevertheless to face all problems i used special features in css only for Internet explorer 7 and 8. In addition i have worked in a project for the Greek customs. I am responsible to deliver some parts to the client. These parts concern all the major software components started from JSF, Java, JPA Workflow Spring MVC and at the end Oracle 11g. I have installed Oracle 11g in Linux environment using OFA (Oracle Flexible Architecture). I am responsible for monthly backup (consistent full backup). I also faced problems concerning all database problems (for example problem with tables, synonyms, and users’ quota in table spaces). Moreover i have developed rules with Java for the business of the project. The functionality of the project is the exchange messages xml using JMS and checking the integrity using xsd files. The data of the message are being transformed in objects passing validation according to some rules and then are loaded at Oracle 11g database. The framework used to load data is JPA using JPQL language. Within project i use Spring Webflow MVC for the dynamic navigation decision. In addition I use Oracle Enterprise Manager to change initialization parameters like the archiving of the database (set in archive log mode the database) memory (maximum and target memory) check the performance of the database using the advisors like memory advisors, sql advisors from which I can find database problems like bad writing queries and index missing. Moreover I have created a prototype using JSF 2 with rich faces 4 and Spring Web flow MVC 3.1. After the creation of the prototype we have implemented the screens at JSF. The screens have been accepted by the client. At the second stage we have implemented the validation, submission and the search results using JPQL. The configuration has been implemented using JTA and the provider for the JPA is OpenJPA . At the search i have proposed to use dynamic SQL using JPQL. In addition i have created the database Oracle 11g 2.0.3 at Linux Red Hat using Optimal Flexible Architecture. After the creation i have changed database settings to suit to our needs. This prototype includes the configuration of Eclipse Juno, Apache Tomcat 7 as Application Server and maven. In addition i have a knowledge of IBM Rup disciplines methodologies and UML diagrams. In Analysis we retrieve the requirements we fix class diagrams then the use cases from use cases the sequence diagrams.

    $16.67 /hr
    0 hours
    0.00
  4. Umer Farooq

    Umer Farooq

    .NET/MVC/Oracle Expert

    Pakistan - Tests: 5 - Portfolio: 5

    I have 7+ years of Software Engineering Experience (designing, development, implementation and support). Have Experience in Core Development Technologies (J2EE, JSF, ADF, ADF BC using MVC architecture, C# .NET using MVC4 architecture), Data Bases (Designing, Maintaining and Performance Tuning of Oracle and MS SQL) and Web Technologies (JavaScript, JQuery, HTML5).

    $16.67 /hr
    0 hours
    0.00
  5. Farhan M.

    Farhan M.

    Software Engineer

    Pakistan - Portfolio: 6

    Computer Engineer by Profession - Programmer by Heart :-) Skills: - C, C++, C#, ASP.net, Java, PHP, JQuery, AJAX - HTML, HTML5, CSS, CSS3, Twitter Bootstrap, JavaScript, Microsoft SQL Server - Microsoft Visual Studio, MVC, Eclipse, Google Cloud Messaging, Android Development - MS Office, Adobe After Effects, Video Pad, Odacity, MikTex PDF Creator

    $10.00 /hr
    0 hours
    0.00
  6. Ahmed Soua

    Ahmed Soua

    Computer science Engineer

    Tunisia - Tests: 5

    I'm a junior IT professional based inTunisia with over two years of development experience mostly spent in developing and maintaining web applications running with Java/J2EE (Hibernate, Spring, JSF, Primefaces) and .NET technology. I have some C# experience too. I worked for different companies varying from small business to international corporations. I have good knowledge on Full Software Development Life Cycle and CMS technology specially with joomla. I am responsible, global vision-oriented, reliable, goal-oriented, self-motivated, open-minded, and willing to learn. I really like my job and I prefer it when it's well done !

    $3.33 /hr
    0 hours
    0.00