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Log4j Upwork freelancers typically receive a client rating of 4.85.

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Last updated: August 1, 2015
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  1. Resa R.

    Resa R.

    Java EE Developer with EJB/Spring/Hibernate/Maven/Git/JUnit Experience

    Indonesia - Last active: 1 day ago - Tests: 11 - Portfolio: 3

    I am a Java Developer, working as freelance Java Developer, mainly in Upwork. I am very passionate in Java and java-related technology. My experience mostly in business computing and information system area, using JSF or Spring MVC as web framework, JBoss Seam or Spring as Integration framework and Hibernate as favorite Java Persistence API (JPA) implementation. Mostly using JUnit for testing framework, except for JBoss Seam, I am using Test NG which is bundled together with JBoss Seam distribution. I am also very interested in database design and software design. If my clients require software methodology to documenting my design, my favorite software methodology is Iconix Process. Iconix Process is simplified version of RUP, make The Iconix Process one of reasonable UML Based methodology to adopt. In my spare-time, I am writing some personal open source project and small proof-of-concept about java-related stuff in my GitHub public repository. If you need my detailed skill abilities, below is what I have experienced in: - JPA 1.0, JPA 2.0, with Hibernate. - Bean Validation Specification with Hibernate Validator. - Dependency Injection with Java DI (JSR-330), Java Context and Dependency Injection for Java EE Platform (JSR-299), and Spring Core as most popular (but non-standard) Java Dependency Injection Framework. - Java Web Framework with Spring MVC and JSP, or Java Server Faces (JSF) with Facelet and Primefaces. - Java Web/Application server with Tomcat, JBoss AS/Wildfly, or Websphere AS. - Logging with SLF4J as a wrapper to Log4J or Logback. - JUnit or Test NG as testing framework. - Ant or Maven as build and dependency management tool. - HTML 5, CSS 3, JavaScript, JQuery, Twitter Bootstrap, and transparency.js - Third Party API such as Xero API, Open ERP Java API, Braintree Payment API, and Social APIs (Google, Twitter, Facebook, GitHub, etc.) - Linux/Unix or Windows. - MySQL, Postgre SQL, or Microsoft SQL Server. Thanks, Resa

    $27.78 /hr
    2,967 hours
    4.82
  2. Moldovan Adrian

    Moldovan Adrian

    Software Engineer

    Romania - Last active: 09/17/2014 - Tests: 4 - Portfolio: 1

    7+ years experience in Software Development and Software Design Skills: - Core Java SE/EE; - C# desktop application; - Client/server applications (SOAP, REST, Websockets); - Document processing(XML, JSON, PDF); - Multimedia(video and photo processing); - IMAP/SMTP client; - Payments Systems (Postilion SDK, Office SDK - development and administration) - Oauth clients; Java Keywords: - SWT/jFace; - JDBC; - xStream, Gson, jackson; - apache POI, iText; - javamail; - JAI; C# Keywords: - shell extensions (context menu, overlay icons - sharpshell) - chilkat; Platform: Windows, Linux, Mac OS X. Databases: MySQL, MSSQL, SQLite. Projects target: - Java/C# desktop applications; - PDF processing; - client/server applications (REST, Websockets); - XML processing; - Images processing; - Web crawlers/spiders; - Java applet.

    $33.33 /hr
    0 hours
    5.00
  3. Bhaumik Patel

    Bhaumik Patel Agency Contractor

    Java/J2EE Liferay Expert

    India - Last active: 19 days ago - Tests: 5 - Portfolio: 9

    Software professional having experience of more than 12 years (with 10+ years of JAVA LEAD) in the area of developing Wireless Mobile Applications, Software Applications and Website Designing uses latest technologies like Liferay, Portlets, hooks, ext, Spring MVC, Servlets, JSP, Spring, Hibernate, AJAX, jQuery, extJS etc. Capable of developing advance level applications with the help of skills in the area of Core JAVA, J2SE, J2ME, J2EE. Having domain knowledge of Banking, Trading, Export, Import, Payroll, Accounting, Heath Care (HL7) and also dealing with client directly for client requirement. I have on site experience outside India as well. I have been South Africa and Bangladesh for client requirement and deployment. In depth knowledge of Liferay Portal Admin, Liferay API, Hooks, Themes, EXT and creating custom portlets using Spring MVC and Liferay Portlets. Experience of successfully completing HL7 interface for .net and JAVA technologies including ADT, SIU, DFT, ORM, ORU, MDM, VXU, VXR, VXQ, RAR, RDE etc. message types. Live working experience with SMSC and IN (Intelligent Node) integrations with different mobile operators like BPL, Aircel, Grameen Phone (Bangladesh), Warid (Bangladesh), and Teletalk (Bangladesh).

    Associated with: BhavyaInfotech

    $33.33 /hr
    581 hours
    5.00
  4. Alexandr K.

    Java Junior Developer

    Ukraine - Last active: 4 months ago - Tests: 9

    I want to be a Web-programmer. Last work description: I made a programm of monitoring. This program takes some information from database every time (uses Oracle DB), shows it in the window (uses Swing) and checks it up. In case if data is incorrect programm puts this data in another database (MySQL) - I made this because I couldn't overload the main database (Oracle). Professional skills: I also have some experience in the following areas: OOP, Ant, Log4j, Swing, SQL, JDBC, JPA(Hibernate), Servlets, TomCat, design pattern Model-View-Controller (MVC). Understand, but don't have any experience with Spring (IoC/DI) Personal characteristics: responsibility, diligence, honesty, attention to details, punctuality

    $3.00 /hr
    0 hours
    0.00
  5. Dima Burdiga

    Dima Burdiga

    Java Software Developer

    Ukraine - Last active: 3 months ago

    I have been working a lot with Graphic Design and with System Administration. I also studied Software Engineering and Java. Now I'm looking for some interesting projects or project modules and get experience in new technologies. I have good knowledge about object-oriented paradigm and design patterns, Java Core (OOP, Exceptions, Java I/O, Collections API, Concurrency in Java) and Java EE (JUnit, Mockito, Log4j, Maven, JDBC API, Servlet API). Also familiar with SQL, MySQL. Always eager to learn new technologies.

    $11.11 /hr
    0 hours
    0.00
  6. Pacucu Alvez

    Pacucu Alvez

    Java Developer

    Argentina - Last active: 08/30/2013 - Tests: 1

    Information Systems Engineer with +4 years of Experience in the Software Engineering. I am a self learner, with experience in object oriented programming techniques. Through time I have been working with technologies such as Java 2EE, JSF, SWING, EJB3, Hibernate, Spring, Spring MVC,Oracle Database, MySQL, Maven, Ant, POI, FOP, MyFaces, log4j, Tomcat, OpenOffice, JPivot among others. Excellent communication skills in English and Spanish. Currently studying French Public LinkedIn profile: http://ar.linkedin.com/pub/facundo-alvez/14/13b/86a

    $33.33 /hr
    0 hours
    0.00
  7. Evgeniy Babikhin

    Evgeniy Babikhin Agency Contractor

    Senior Java/Objective C Developer

    Russia - Last active: 05/29/2013 - Tests: 5 - Portfolio: 2

    I've been working for TopDog Developments Ltd. (www.topdog.uk.net) as Senior J2SE/J2EE Developer since 07.2006. The project i'm involved in is a front & back office system for the travel agencies of the UK and Australia. Key experiences: - senior level in J2SE/J2EE; - good level in Objective-C and Cocoa Touch - development with agile methodologies, test-driven development and code review; - architecture design of high-available information systems, load-testing and stress-testing them, followed by optimization; - project and team management; - interviewing and training junior developers.

    Associated with: TopDog Developments

    $11.11 /hr
    0 hours
    0.00