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Andrey Chorniy

Andrey Chorniy Agency Contractor

Senior Java (JEE and Android) Developer

Ukraine - 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

100% Job Success
$30.00 /hr
2,901 hours

Hantsy B.

Hantsy B.

Java EE, Spring, PHP, REST, AngularJS

China - Tests: 4 - Portfolio: 5

Over 12 year Java EE experience, professional in Java EE5/6, Spring, Hibernate, JSF , JBoss Seam etc. Skills: 1. Familarity with Java EE development, Java EE5( and JBoss Seam2), Java EE 6( and Apache DeltaSpike, JBoss Seam3), Java EE 7, Spring( core framework, Spring MVC, Spring Security, Spring Data JPA/Mongo/Rest...), JPA/Hibernate/EclipesLink, JSF/Richfaces/Primefaces, Glassfish/Tomcat/JBoss. 2. Familiarity with RESTful architeure, REST API desgin and implementation, REST programming for both client and sever side( via Spring MVC and JAXRS), Single page application, AnguarJS/Knockout/Ember. 3. Experience of agile methodology(XP, TDD) and Scrum, familiarity with Git, Jira/Confluence/Fisheye/Bamboo, Jekins/Hudson 4. Experience of cloud service, OpenShift, Cloudfoudry, Cloudbees, Google AppEngine etc. 5. Familiarity with LAMP(Linux, Apache, MySQL, PHP 5), CakePHP. Community activity: 1. Contributor of JBoss Arquillian 2. Winner of 2012 JBoss Community Recognition Awards (Category:Wiki) 3. Chinese Translator of book: Spring Live(the famous Spring book from Matt Raible) 4. Co-reviewer of book: Arquillian Testing Guide(Packt publishing) 5. Co-reviewer of video course: JBoss EAP Configuration, Deployment, and Administration(Packt publishing) 6. Author of Click4NB(a NetBeans plugin for Apache Click framework) Blog:, GitHub:, Linkedin:

83% Job Success
$50.00 /hr
994 hours

Chris H.

Application/Database Developer

United States - Tests: 5

Over the last 10 years I have had extensive experience in all stages of web application development using Java, Perl, HTML and databases. I am interested in working with you and your business to develop applications that enhance your business.

$61.11 /hr
653 hours

Hasan Saghir

Hasan Saghir

Web Developer / Designer (J2EE / HTML, CSS, JS, jQuery)

Australia - Tests: 3

- 7 years of experience in web development using Java technologies. Working on Java MVC Frameworks like Struts 1/2, JSF at front-end and Enterprise back-end technologies like EJB 2/3. - Hands on experience in designing complete dynamic websites from design to deployment. I also have experience working at website design using JavaScript frameworks as jQuery, DOJO etc. - Working knowledge of all project development tools like Ecplise, Database workbenches (DB Visualizer, MySQL Work Bench) , SVN, CVS, Test Director, OTRS, XPlanner. - Practical knowledge of working with Website Security / Vulnerabilities including OWASP and PCI top enlisting.

100% Job Success
$50.00 /hr
4,088 hours

kolitha karunarathna

kolitha karunarathna

Java Technology Lead /Senior Software Engineer

Sri Lanka - Tests: 2 - Portfolio: 5

I'm interested in investing my time in entrepreneurial activities helping businesses to grow further using IT based integrated applications, online trading applications, ERP applications and to develop and utilize tools to gain business intelligence for better decision making and to improve profitability and productivity. I believe that my strong analytical ability together with my passion for business and computer science helps businesses to grow further. I have been a enthusiastic software researcher, designer and developer. I'm specialized in developing software based applications using open source technologies. I have more than 7 years of software development experience developing large scale web applications, desktop applications, and few mobile applications. I'm a specialist in developing applications using JAVA and PHP based technologies. This includes good architectural knowledge on Jboss infrastructure based ejb, Spring, Hibernates and Struts integrated environments and frameworks. I have worked as a team lead on few projects, holding lead position my main responsibility was to guide the team to meet the technical and business objectives, guide the team to improve efficiency, reliability and effectiveness. Identifying new technologies which comply with latest industry standards and implementing those to acquire that operational advantage was another responsibility. Managing the software development process and overseeing the project progress, schedule development time lines, resource allocation and project planning, risk management and providing solutions, guidance and client management with satisfaction include some of my competencies. Other Competencies include - - Project Management - Entrepreneurship & Business Development. - Quantitative Financial Research and Investment Analysis. - Management and Business Administration. - Strategic Human Resource Management. - Human Psychology. - Process Mining - Data Science Managing the software development process and overseeing the project progress, schedule development time lines, resource allocation and project planning, risk management and providing solutions, guidance and client management with satisfaction include my other competencies.

$27.80 /hr
937 hours

Hernan Ortuno Valverde

Hernan Ortuno Valverde Agency Contractor


Bolivia - Tests: 1

Hello Sir I have read the description of the job you want to be done and I have experience Core Java, using JBoss technologies, Seam Framework, Facelets (RichFaces, OpenFaces, PrimeFaces, JSF1.5,JSF2), Jboss Enterprise Data Services Framework, PostgreSQL Enterprise Data Base, Hibernate, ajax, advanced javascript, css and more. I am really interested in working with you in your project. Please allow me to work with you in this project and I guarantee you will be very satisfied. Best regards Hernan Ortuño

Associated with: Galindo Consulting Group, Inc. Agency

$11.11 /hr
377 hours

Resa R.

Resa R.

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

Indonesia - 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

100% Job Success
$27.78 /hr
3,159 hours

Valentin Poroxnenko

Valentin Poroxnenko Agency Contractor

Java and Android development

Russia - Tests: 11 - Portfolio: 4

I have been working as a key developer and team lead at the java or android projects for more than 6 years. Most of these projects were enterprise applications. Team leading and project management experience. Good knowledge of team working rules and tools (version control, bugtracking, time management systems, etc.) Development  of multi-tier applications based on JBoss, Weblogic, WebSphere, Tomcat application/web servers. EJB 2, EJB3, servlets, Web services(SOAP, REST, axis2) using for middle tier. AJAX(GWT, JSF with IceFaces), JSP as view tier. Hibernate and JPA ORM at the MySQL, Firebird,Oracle db's. Good design patterns knowlege GoF, Java EE patterns etc.

Associated with: NevaSpecInSoftConsult

95% Job Success
$30.00 /hr
1,154 hours

Alexey B.

Alexey B. Agency Contractor

Senior Java Developer / Team lead: Java/J2EE

Ukraine - Tests: 2 - Portfolio: 6

IT-Specialist with more then 15 years experience in software development. Over last 12 years I was working on web sites/portals development using Java and related techs: JSF, Facelets, RichFaces, Spring, Seam, JPA, Hibernate, EJB, Portlets, Maven, HTML, DHTML, CSS, JavaScript. JBoss AS, JBoss Portal, Tomcat, AMF, BlazeDS, SOAP, JSON, XML. Over last 7 years worked as team lead/architect. Last 3 years spent as project manager for eCommerce platform server-side/portal development. Hardworking, team and goal oriented, challenge seeking, work well under pressure. Ready for sporadic overtime.

Groups: Yahoo Web Hosting Designer

Associated with: U268

100% Job Success
$38.89 /hr
16,280 hours