J2EE Developers & Programmers

Showing 173 freelancers

J2EE Developers & Programmers

Showing 173 freelancers

  • Expert programmer in Java, Clojure, AWS, algorithms, etc

    Experienced professional with substantial experience in Java, Clojure, big distributed systems, and hard problems. Languages I’ve worked with include Java, Scala, Clojure, Haskell, C++, Ruby, Python, and Javascript. I’m best with Java and Clojure. In the cloud I … more

    Experienced professional with substantial experience in Java, Clojure, big distributed systems, and hard problems. Languages I’ve worked with include Java, Scala, Clojure, Haskell, C++, Ruby, Python, and Javascript. I’m best with Java and Clojure. In the cloud I've worked with AWS, particularly EC2, EBS, S3, and Elastic Beanstalk. I’ve worked on complex cloud deployments gluing together a half-dozen systems; including third-party, Elastic Beanstalk, and self-hosted systems. Data-wise, I’ve worked with ElasticSearch, Mongo, Oracle, MySQL, PostgreSQL. In Java I’m good with Spring Core (both annotations and XML), Spring Data, and Hibernate. And on the JS side, Node.js, Dojo, and jQuery. I hold a bachelor’s in math from University of Chicago, and have done work in a number of “hard” domains; specialized implementations of eventually consistent data models, domain-specific languages, rules engines, consistent and fast multithreading, distributed computing, and very high performance on the JVM. Some notable things I've done recently: * Helped a client set up a complete AWS solution including several Beanstalk instances, EC2 instances, databases, and ElasticSearch. * Written a custom OAuth solution (from scratch) to help users log in and grab user information, in Clojure. * Written a complete context-free parser generator in Clojure: https://github.com/mthvedt/clearley/ I've also worked on high performance distributed solutions, new eventual consistency algorithms, high-volume trade processing and custom domain-specific languages for financial instruments. I believe in professional standards, clear communication, and functional, high-quality code. Drop me a line and let’s talk about what I can do for you.  less

    clojure java ruby html5 css3 javascript core-java j2ee hibernate spring-framework jms xhtml 00 more less
    • $80.00 HOURLY RATE
    • 5.0
    • 410 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 2 TESTS
  • Technical Architect Java, J2EE, SIP Web RTC

    Over the last 12 years, I have worked extensively on Java/J2ee projects for prestigious clients in telecom and banking domain My passion towards the designing, programming and coding, lead me to the Odesk , a platform where I can put … more

    Over the last 12 years, I have worked extensively on Java/J2ee projects for prestigious clients in telecom and banking domain My passion towards the designing, programming and coding, lead me to the Odesk , a platform where I can put my knowledge, experience, passion together and deliver my best in professional and timely manner My core expertise lies in : Java/J2ee LinkedIn, Highrise, Foursquare API Integration OAuth Intergration SIP WebRTC BigBluebutton red5, freeswitch, Big Blue Button Type safe stack (Play!, Akka, Cassandra) Twitter Bootstrap Weblogic / Websphere Web Solutions (JSP/Struts/Servlets/XML/Web Services/JavaScript/HTML5) Android Development Coding Standards and Best Practices  less

    java j2ee sip jbpm linkedin-api jsp android-app-development cassandra foursquare-api oauth java-servlets-development weblogic amazon-web-services node.js ajax jmeter opensips xml core-java xml-web-services play-framework twitter-bootstrap 00 more less
    • $38.89 HOURLY RATE
    • 4.6
    • 286 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 2 TESTS
  • AWS Partner Cloud Systems Architect

    Cloud Systems Architect with heavy immersion in all AWS technologies. Member of the AWS Partner Network and AWS Accredited Technology Professional. Prominent member of the Rightscale ecosystem, serving on the Customer Advisory Group. Significant project experience with Azure, Rackspace, and … more

    Cloud Systems Architect with heavy immersion in all AWS technologies. Member of the AWS Partner Network and AWS Accredited Technology Professional. Prominent member of the Rightscale ecosystem, serving on the Customer Advisory Group. Significant project experience with Azure, Rackspace, and OpenStack. Looking for new challenges, interesting problems, and not afraid of big numbers. My work has been equally split between Linux and Windows systems with a focus on creating new technologies. In addition to domestic work, I have engineered software and hardware solutions on several continents for US companies, working with foreign specialists to solve problems in the States. My primary skills lie in the automation and orchestration of highly scalable, highly available systems. I am looking to use these skills to grow my experience and knowledge, and I'm most interested in implementing original solutions for unique problems. Please note that although I am sometimes available for emergency situations, I am usually working on several projects at any given time and generally cannot accommodate requirements that need to be fulfilled yesterday. Platforms: Rightscale/AWS/Rackspace/Azure Systems: Specializing in Microsoft technologies with an extensive Linux background Databases: MongoDB/MySQL/MSSQL/Oracle Core competencies in most AWS products Aussi, je parle le français si vous êtes intéressé. Keyword alphabet soup: Hadoop, NoSQL, Nginx, Apache, Ubuntu, Centos, RedHat, OS/X, CloudWatch, Nagios, Icinga, AWS-CLI, HAProxy, ELB, VPN, Chef, Cloudformation, Redshift, Glacier, S3, DevOps, Shell, Bash, Powershell, Python, Git, SVN, OpsWorks, JIRA, LiquidPlanner, Salesforce, OpenVPN, etc...  less

    amazon-ec2 amazon-s3 seo lamp-administration database-administration windows-administration scripting iphone-app-development rest php apache-struts magento mysql mac-os-app-development dns microsoft-exchange-server windows-azure sql-azure haproxy amazon-web-services amazon-rds amazon-mechanical-turk-api iis database-management rightscale 00 more less
    • $111.11 HOURLY RATE
    • 5.0
    • 5076 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 6 PORTFOLIO ITEMS
    • 5 TESTS
  • Mr.

    • Languages: ASP.NET 3.5, 4.0, C#.NET, Java, J2ee, Struts2, C/C++, shell script, OpenGL, assembly, prolog • Practices: Test driven development, Agile methodologies, UML, Object oriented design, Continues integration. • Technologies: MVC3, RAZOR, ADO.NET, ASP.NET, HTML, DHTML … more

    • Languages: ASP.NET 3.5, 4.0, C#.NET, Java, J2ee, Struts2, C/C++, shell script, OpenGL, assembly, prolog • Practices: Test driven development, Agile methodologies, UML, Object oriented design, Continues integration. • Technologies: MVC3, RAZOR, ADO.NET, ASP.NET, HTML, DHTML, CSS, JAVASCRIPT, AJAX, JSON, XML, XSLT, XML Web services, Windows services, C# TCP Sockets, Regular expression. • Database: Microsoft SQL 2000/2005/2008, Oracle 10g, Sybase 12 • Platform: Windows Vista, Windows XP, 2003, Unix, Linux, Solaris • Tools: Visual Studio 2005, 2010, Subversion, CVS, NUnit, MbUnit, Zedgraphs, NHibernate, NDoc, NCover, NAnt, Resharper, Entity framework, NInject, LINQ • Networking protocols: Telnet, FTP, SSH, HTTP/HTTPS  less

    asp.net c# java javascript jquery asp.net-mvc wcf ajax jquery-mobile c++ oracle-database sql c unix-shell j2ee apache-struts nhibernate dotnetnuke 00 more less
    • $5.56 HOURLY RATE
    • 5.0
    • 0 HOURS
    • CANADA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 3 TESTS
  • Software Developer

    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 … more

    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  less

    java cocoa objective-c mac-os-app-development scripting applescript javascript youtube-api java-servlets-development core-java xml xsd cocos2d 00 more less
    • $25.00 HOURLY RATE
    • 5.0
    • 0 HOURS
    • CANADA
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 1 TEST
  • Java,J2EE,AJAX,Spring,Struts,PHP,Atlassian Tool Expert,Drupal,Joomla

    Over last 6 years, I have been involved in various projects related to PHP,MySQL,AJAX,XHTML,XML,Java,J2EE,Struts,Spring MVC,Spring WebFlow,JSF,Rich Faces,Prime-Faces, Rest Web Services,Grails 1.3. These include simple information management … more

    Over last 6 years, I have been involved in various projects related to PHP,MySQL,AJAX,XHTML,XML,Java,J2EE,Struts,Spring MVC,Spring WebFlow,JSF,Rich Faces,Prime-Faces, Rest Web Services,Grails 1.3. These include simple information management systems to the complex banking software for a multinational company. I also have experience in areas like:Linux Networking,Oracle 10g, PL/SQL, MSSQL, MySQL. I am seeking the opportunity to be a part of challenging projects and work in the core architecture and high level design of an application.  less

    adobe-photoshop ajax android-app-development blog-writing css c++ drupal hibernate j2ee java jboss javascript jfc jsp microsoft-access microsoft-excel sql linux-system-administration mysql perl php uml xhtml 00 more less
    • $16.67 HOURLY RATE
    • 4.6
    • 11 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 12 PORTFOLIO ITEMS
    • 7 TESTS
    ASSOCIATED WITH:
  • Software Developer

     More than ten years of experience as Software Architect, Chief Programmer, Senior Software Engineer, Software Engineer, J2EE Developer with proven success in Designing, Developing and Testing for robust Web-based and client/server software applications, with specialized expertise in J2SE/J2EE … more

     More than ten years of experience as Software Architect, Chief Programmer, Senior Software Engineer, Software Engineer, J2EE Developer with proven success in Designing, Developing and Testing for robust Web-based and client/server software applications, with specialized expertise in J2SE/J2EE, JavaSE/JavaEE, Ruby on Rails and XML technologies.  Development experience with agile methodologies (XP, TDD, SCRUM).  Extensive development experience on Web2.0 and JavaScript.  Extensively used Struts Framework for Model, View and Controller Layer.  Extensively used Ruby on Rails framework as a next generation web framework.  Extensively used Spring Java/J2EE Framework features for Model, View and Controller, Persistence Layer and middle tier development using POJO.  Used EJB3.0 Persistence, Session and Message Driven Bean with JBoss 4.x and WebLogic 10.x.  Extensively used Hibernate, JPA, IBatis as Persistence layer and ORM tool.  Used Lombardi Teamworks as BPM suite.  Used Liferay 4.x, Websphere Portal, JSR-168 Portlets as part of portal development.  Used RSA Access Manager to centralize security integration with Sharepoint2007/WSS 3.0.  Development experience in InfoPath 2007, Share Point 2007 security, Windows SharePoint services and workflow.  Extensively used IIS 6.0, Apache Tomcat 4.x/5.x and JBoss 4.x.  Well versed and hands on experience in Build Management Tools like Ant, Maven, Lunt Build, Cruise Control and multiple Version Control Systems like CVS, VSS, Subversion, Borland StarTeam, and Issue Tracking Systems namely BugZilla, JIRA and Mantis.  Working knowledge of Linux/Unix and Windows operating systems.  Domain knowledge in ERP, Document Management Systems, Ready-made Garments Industry, Financial Applications, Portals.  Extensively used Eclipse, MyEclipse, NetBeans, RedMine and Visual Studio 2005.  less

    java j2ee ruby-on-rails spring-framework rest apache-struts hibernate eclipse jboss weblogic ibm-websphere xpath nginx mongrel javascript cucumber rspec xsl xslt xml jquery bdd mysql html ibatis 00 more less
    • $66.67 HOURLY RATE
    • 4.9
    • 1805 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 5 TESTS
  • Ruby, Java, Web Development

    Strong development, lead, architect skills deriving by 12 years of experience in successfully implementing IT Software Projects varying in size and across different industries. Specialties: Web and enterprise software architectures, object oriented development and design, design patterns, test-driven and agile … more

    Strong development, lead, architect skills deriving by 12 years of experience in successfully implementing IT Software Projects varying in size and across different industries. Specialties: Web and enterprise software architectures, object oriented development and design, design patterns, test-driven and agile software development, web application development, Java, J2EE, Ruby on Rails, Hibernate, Spring, transactions, databases, Oracle, PostgreSQL.  less

    java ruby-on-rails seo drupal magento prestashop expression-engine bigcommerce typo3 zend-framework symfony twitter-bootstrap codeigniter yii-framework silex-framework php virtuemart wp-ecommerce 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 12740 HOURS
    • CANADA
    • LAST ACTIVE
    • 12 PORTFOLIO ITEMS
    • 2 TESTS
    GROUPS:
    ASSOCIATED WITH:
  • PHP, E-Commerce, Wordpress, Web Design, Magento, Drupal, SEO Marketing

    As an experienced web developer and a web designer for the past 7 years, I have managed a team and developed a number of desktop and web applications using Java technologies as well as websites using PHP, J2EE, HTML, DHTML … more

    As an experienced web developer and a web designer for the past 7 years, I have managed a team and developed a number of desktop and web applications using Java technologies as well as websites using PHP, J2EE, HTML, DHTML, CSS, JavaScript, Posgtres, MySQL, Oracle, different PHP and J2EE frameworks. Under my management, I also operated a web marketing company where I helped increase the traffic of hundreds of websites through search engine marketing. Are you looking for a wordpress, drupal, or magneto modifications; successful e-commerce store or professional web 2.0 style graphics design for your website? I am your guy! Let us negotiate a deal.  less

    web-design wp-ecommerce ecommerce-consulting html5 html psd-to-html drupal website-development 00 more less
    • $11.10 HOURLY RATE
    • 4.8
    • 194 HOURS
    • CANADA
    • LAST ACTIVE
    • 9 PORTFOLIO ITEMS
    • 4 TESTS
    ASSOCIATED WITH:
  • Sr. Web Developer and DBA

    I have been developing software and working with databases for the past 16 years. I design object-oriented, tiered applications and write code in PHP, C#, and VB.NET. I have also written applications in C++ / MFC / Win32 as well as … more

    I have been developing software and working with databases for the past 16 years. I design object-oriented, tiered applications and write code in PHP, C#, and VB.NET. I have also written applications in C++ / MFC / Win32 as well as VB 6.0. I design and administer databases in MySQL and Postgres and excel at writing triggers, functions/procedures, and views. I have also worked with SQL Server and Oracle. Over the past couple of years, I have moved into being a PHP developer with a preference for the CakePHP framework. I truly believe that PHP, HTML5, and CSS3 are the future of the software world. Since PHP was specifically designed for creating web pages, it only makes sense to use it for web development, especially now that object-oriented features and other modern functionality have been added to the code base. I hold a computer science degree (1998) and have several years of practical experience. I have been using the .NET Framework since the Visual Studio .NET Beta and write .NET code primarily in C# and VB.NET. I prefer to work with applications that follow an n-Tier architecture along with object-oriented concepts such as inheritance and abstraction but will work with just about anything. I have vast experience using C++ and the Microsoft Foundation Classes along with the Win32 API. Other languages/frameworks include PHP, LINQ, Regular Expressions, VB 6.0, and straight C. I have been designing and administering SQL databases since SQL Server 7.0. Software Engineers tend to be bad DBAs but I believe that I am the exception. Database concepts such as normalization/denormalization, primary/foreign keys, and check/default contraints are not new to me. Whether it be T-SQL or PL/SQL, I also excel with database programmability, such as triggers, procedures, functions, and views. File organization and usage, backup and maintenance, and database efficiency are also strengths. Other databases include PostgreSQL, MySQL, Oracle, and yes, Access (95 on up). During the past 16 years, I have created and maintained custom line-of-business Windows applications. These include applications for law enforcement, 911 centers, jails, retail businesses, nursing homes, and trucking companies. I have also designed and coded applications for GIS mapping systems and some data mining and sharing initiatives. I have created custom TCP/UDP servers and clients for low-bandwidth mobile applications. I have worked with O/R mappers such as LLBLGen Pro and are used to using entities in data layers rather than reading/writing data directly. If you have a SQL Injection problem, I can probably fix it. I am used to using source control systems such as Git, SVN, Vault, and SourceSafe. I excel at Web Applications, Windows Forms applications, Windows Services, records management applications, interfaces with third-party APIs, integration of systems, and middle tiers such as the business or data layer (just in case you have a web application but need the back-end to work). Preferences/Specialize in: Web Applications Records Management/Business Applications Database Design/Administration Windows Services Back-end Work (business, data layer, facade) Windows Forms Applications API Programming Integration of Systems Data Mining/Conversion Programming Languages: PHP 4/5 C# VB.NET C / C++ Java VB 6.0 Databases and Languages: MySQL PostgreSQL SQL Server T-SQL Oracle Database PL/SQL Access DataFlex AcuODBC Libraries/Frameworks: .NET LINQ LINQ to SQL LINQ to XML Regular Expressions WPF MFC Win32 API ADO.NET ADO DAO/Jet Concepts: Object-Oriented Programming n-Tier Architecture Service-Oriented Architecture Normalization/De-normalization Primary/Foreign/Unique Keys Check/Default Constraints Database Programmability Tools: Visual Studio SQL Management Studio Eclipse LLBLGen Pro VMWare Microsoft Office (Word, Excel, PowerPoint, Outlook) TextMate DbVisualizer Active Reports Crystal Reports Iron Speed CodeOnTime Source Control: Git SVN SourceSafe SourceGear Vault Web Programming: CakePHP Silverlight HTML, HTML5 CSS, CSS3 JavaScript WCF SOAP REST JSON XML XSD Web Browsers: FireFox Chrome Internet Explorer Safari Operating Systems: Windows Mac OS X  less

    c# object-oriented-design linq regular-expressions t-sql microsoft-sql-server-development oracle-pl/sql oracle-database mfc win32-app-development microsoft-visual-studio c postgresql mysql microsoft-access microsoft-sql-server-administration orm git tortoise-svn api-development wcf crystal-reports microsoft-visual-c++ microsoft-visual-basic .net-framework ado ado.net 00 more less
    • $45.00 HOURLY RATE
    • 4.9
    • 108 HOURS
    • UNITED STATES
    • LAST ACTIVE
    • 21 PORTFOLIO ITEMS
    • 3 TESTS
    ASSOCIATED WITH:
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