SUMMARY:

• 6 years of Java/J2EE developing experience in telecom, finance and e-commerce industry with excellent understanding of Object Oriented Design and Programming.
• Strong comprehension of Core Java concepts including Multi-Threading, Collections Framework, Exception Handling, Input/Output System, Reflection, Generics and Annotation.
• Solid understanding of GoF Design patterns: Singleton, Prototype, Decorator, Factory Method, Proxy, Fa ade, Adapter etc. and J2EE patterns: Model-View-Controller MVC , Plain Old Java Object POJO , Data Access Object DAO etc.
• Concrete knowledge of Software Development Life Cycle SDLC , such as Waterfall Model, Test-Driven Development TDD , Agile development, Scrum and Extreme programming XP .
• Expertise in developing J2EE applications using Spring 2.x/3.x . Hands-on experience of Spring MVC, Spring Security configuration.
• Experience of using Servlet, JSP, HTML5, CSS3, Javascript, JQuery, AngularJs and AJAX to create the front-end of websites.
• Proficient in using XML and JSON to transmit data objects.
• Expertise in using JDBC, DBCP and Hibernate 3.x to communicate with databases.
• Experience of writing SQL, PL/SQL and Stored Procedures in relational databases such as Oracle and MySQL.
• Knowledge of web services such as SOAP and REST.
• Experience of deploying web servers, such as Apache Tomcat and JBoss.
• Proficient in using Unix/Linux, shell scripting.
• Knowledge of multiple testing methods including Unit test, Integration test, Regression test, white box test and black box test.
• Familiar with version control software SVN and Git.
• Experience of using JIRA to track bug resolving progress.
• Excellent problem solver with good communication skills, a reliable teammate and an energetic individual.

TECHNICAL SKILLS:

PROFESSIONAL EXPERIENCE:

Confidential

Position: Sr. Java/J2EE Developer

Responsibilities:

• Engaged in most phases of Software Development Life Cycle SDLC , especially Implementation and Maintenance.
• Developed the front-end using HTML5, CSS3, JavaScript, jQuery and AngularJS.
• Used AJAX calls to asynchronously retrieve data from back-end.
• Implemented RESTful web services to provide methods requested by AJAX calls.
• Implemented the structure of the system using Spring MVC.
• Used and configured Spring Security to control user login authentication and authorization.
• Developed POJO classes for various objects used in the system and added Hibernate Annotation for O-R Mapping.
• Used GoF Design Patterns like Singleton and Factory Method to manage instance creation of bean and session.
• Extensively used Spring IoC features to assign values to fields in various objects.
• Built Data Access Object DAO to form a dedicated database communication module.
• Used and configured Hibernate as the underlying layer to do the database operations.
• Developed the back-end using Core Java, including Collections Framework, I/O, Generics and Exception Handling.
• Created tables in Oracle 10g system based on the Entity-relationship model which is specified in the requirements.
• Wrote various SQL/HQL queries and stored procedures to store and retrieve data from the database.
• Configured Hibernate cache to store frequently used queries for better efficiency.
• Tested Java classes using JUnit for Unit testing, also involved in other testing phases such as Integration testing, Regression testing.
• Wrote QUnit test cases to test front-end JavaScript code.
• Implemented email confirmation function using JavaMail.
• Deployed the system on Apache Tomcat Server using DBCP configuration.
• Used SVN to do the version control during the development.
• Developed the system using Eclipse.

Environment:

Core Java, J2EE, HTML5, CSS3, JavaScript, jQuery, AngularJS, AJAX, RESTful, Oracle 10g, Eclipse 3.7, Apache Tomcat 7.0 Web Server, Hibernate 3.2, Spring 3.1, JUnit 4, QUnit, JavaMail, SVN.

Confidential

Position: Sr. Java/J2EE Developer

Responsibilities:

• Developed the system with a team using Agile software development process.
• Designed the front-end user interface with HTML, CSS, JavaScript and jQuery.
• Used AJAX calls to asynchronously retrieve data from back-end.
• Implemented RESTful web services to provide methods requested by AJAX calls.
• Development the system using Spring, configured Spring Controller annotation to map url requests to the methods in controllers.
• Configured the Spring Cache for the system to achieve better performance.
• Used Hibernate to do the database connection and operations.
• Configured the Hibernate mapping file for Java beans and tables in the database with XML format.
• Implemented the back-end of the system using Core Java features, such as Collections Framework, Generics and Multi-threading. Used various design patterns when implementing, including Singleton, Proxy, Adaptor.
• Used Oracle 10g to store customer information.
• Deployed the system using JBoss application server.
• Used JIRA for project development.
• SVN is used to achieve the version control.

Environment:

Core Java, J2EE, HTML, CSS, JavaScript, jQuery, AJAX, RESTful, Oracle 10g, JBoss Application Server, Hibernate 3, Spring 2, Spring Cache, SVN.

Confidential

Position: Java/J2EE Developer

Responsibilities:

• Participated in various development phases of Software Development Life Cycle SDLC .
• Implemented the front-end page using HTML, CSS, JavaScript, jQuery.
• Used REST web services as the system's structure that takes care of the data transfer between front-end and back-end, along with JDBC to communicate with database.
• AJAX is used to implement the submit payment function. Used JSON data type in AJAX as the transferring object between front-end and back-end.
• Developed the back-end objects as Enterprise JavaBeans EJB .
• Used JavaMail to send an email with invoice to customer after successful payment.
• Involved in Unit Tesing, Integration Tesing and Load Testing of the system.
• Used Log4j to make logs when the system is running.
• Achieved version control by using SVN.

Environment:

Core Java, J2EE, HTML, CSS, JavaScript, jQuery, JBoss Application Server, JDBC, AJAX, REST, JSON, EJB, Log4j, SVN.